./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:19:13,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:19:13,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:19:14,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:19:14,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:19:14,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:19:14,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:19:14,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:19:14,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:19:14,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:19:14,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:19:14,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:19:14,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:19:14,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:19:14,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:19:14,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:19:14,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:19:14,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:19:14,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:19:14,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:19:14,049 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:19:14,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:19:14,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:19:14,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:19:14,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:19:14,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:19:14,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:19:14,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:19:14,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:19:14,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:19:14,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:19:14,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:19:14,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:19:14,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:19:14,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:19:14,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:19:14,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:19:14,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:19:14,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:19:14,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:19:14,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:19:14,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:19:14,065 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:19:14,097 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:19:14,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:19:14,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:19:14,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:19:14,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:19:14,100 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:19:14,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:19:14,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:19:14,101 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:19:14,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:19:14,102 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:19:14,102 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:19:14,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:19:14,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:19:14,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:19:14,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:19:14,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:19:14,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:19:14,104 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:19:14,104 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:19:14,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:19:14,104 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:19:14,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:19:14,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:19:14,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:19:14,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:19:14,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:19:14,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:19:14,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:19:14,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:19:14,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:19:14,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:19:14,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:19:14,108 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c551c05c986c34609f999e25a13e0dbb4f692e7b1d3b7f2939ec615c71d0d0 [2022-07-14 14:19:14,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:19:14,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:19:14,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:19:14,403 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:19:14,404 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:19:14,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i [2022-07-14 14:19:14,464 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/018ecdf0c/86585cd2a3eb4aa0a433471aafdc547d/FLAGd1b96da33 [2022-07-14 14:19:15,034 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:19:15,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i [2022-07-14 14:19:15,055 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/018ecdf0c/86585cd2a3eb4aa0a433471aafdc547d/FLAGd1b96da33 [2022-07-14 14:19:15,296 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/018ecdf0c/86585cd2a3eb4aa0a433471aafdc547d [2022-07-14 14:19:15,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:19:15,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:19:15,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:19:15,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:19:15,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:19:15,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:19:15" (1/1) ... [2022-07-14 14:19:15,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d9876c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:19:15, skipping insertion in model container [2022-07-14 14:19:15,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:19:15" (1/1) ... [2022-07-14 14:19:15,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:19:15,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:19:15,698 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i[33022,33035] [2022-07-14 14:19:15,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:19:15,890 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:19:15,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-1.i[33022,33035] [2022-07-14 14:19:16,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:19:16,048 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:19:16,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:19:16 WrapperNode [2022-07-14 14:19:16,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:19:16,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:19:16,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:19:16,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:19:16,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:19:16" (1/1) ... [2022-07-14 14:19:16,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:19:16" (1/1) ... [2022-07-14 14:19:16,179 INFO L137 Inliner]: procedures = 177, calls = 524, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2179 [2022-07-14 14:19:16,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:19:16,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:19:16,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:19:16,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:19:16,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:19:16" (1/1) ... [2022-07-14 14:19:16,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:19:16" (1/1) ... [2022-07-14 14:19:16,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:19:16" (1/1) ... [2022-07-14 14:19:16,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:19:16" (1/1) ... [2022-07-14 14:19:16,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:19:16" (1/1) ... [2022-07-14 14:19:16,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:19:16" (1/1) ... [2022-07-14 14:19:16,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:19:16" (1/1) ... [2022-07-14 14:19:16,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:19:16,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:19:16,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:19:16,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:19:16,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:19:16" (1/1) ... [2022-07-14 14:19:16,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:19:16,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:19:16,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 14:19:16,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 14:19:16,430 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2022-07-14 14:19:16,431 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2022-07-14 14:19:16,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:19:16,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-14 14:19:16,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-14 14:19:16,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:19:16,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 14:19:16,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 14:19:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 14:19:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:19:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 14:19:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:19:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-14 14:19:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 14:19:16,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:19:16,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:19:16,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:19:16,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:19:16,724 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:19:16,725 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:19:18,579 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:19:18,593 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:19:18,593 INFO L299 CfgBuilder]: Removed 151 assume(true) statements. [2022-07-14 14:19:18,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:19:18 BoogieIcfgContainer [2022-07-14 14:19:18,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:19:18,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:19:18,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:19:18,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:19:18,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:19:15" (1/3) ... [2022-07-14 14:19:18,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b19a5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:19:18, skipping insertion in model container [2022-07-14 14:19:18,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:19:16" (2/3) ... [2022-07-14 14:19:18,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b19a5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:19:18, skipping insertion in model container [2022-07-14 14:19:18,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:19:18" (3/3) ... [2022-07-14 14:19:18,608 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test10-1.i [2022-07-14 14:19:18,639 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:19:18,639 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-14 14:19:18,699 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:19:18,704 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@539feaf0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4c6ddc0c [2022-07-14 14:19:18,705 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-14 14:19:18,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 438 states, 414 states have (on average 1.714975845410628) internal successors, (710), 424 states have internal predecessors, (710), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-07-14 14:19:18,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 14:19:18,716 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:19:18,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:19:18,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:19:18,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:19:18,721 INFO L85 PathProgramCache]: Analyzing trace with hash -165268689, now seen corresponding path program 1 times [2022-07-14 14:19:18,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:19:18,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979809132] [2022-07-14 14:19:18,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:18,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:19:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:19:18,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:19:18,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:19:18,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979809132] [2022-07-14 14:19:18,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979809132] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:19:18,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:19:18,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:19:18,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574658230] [2022-07-14 14:19:18,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:19:18,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-14 14:19:18,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:19:18,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 14:19:18,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 14:19:18,914 INFO L87 Difference]: Start difference. First operand has 438 states, 414 states have (on average 1.714975845410628) internal successors, (710), 424 states have internal predecessors, (710), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-07-14 14:19:18,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:19:18,984 INFO L93 Difference]: Finished difference Result 874 states and 1482 transitions. [2022-07-14 14:19:18,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 14:19:18,987 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2022-07-14 14:19:18,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:19:19,001 INFO L225 Difference]: With dead ends: 874 [2022-07-14 14:19:19,008 INFO L226 Difference]: Without dead ends: 434 [2022-07-14 14:19:19,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 14:19:19,018 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:19:19,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:19:19,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-07-14 14:19:19,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2022-07-14 14:19:19,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 411 states have (on average 1.3333333333333333) internal successors, (548), 421 states have internal predecessors, (548), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-14 14:19:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 575 transitions. [2022-07-14 14:19:19,102 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 575 transitions. Word has length 7 [2022-07-14 14:19:19,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:19:19,103 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 575 transitions. [2022-07-14 14:19:19,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-07-14 14:19:19,104 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 575 transitions. [2022-07-14 14:19:19,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 14:19:19,104 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:19:19,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:19:19,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:19:19,105 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:19:19,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:19:19,106 INFO L85 PathProgramCache]: Analyzing trace with hash -165266767, now seen corresponding path program 1 times [2022-07-14 14:19:19,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:19:19,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325557919] [2022-07-14 14:19:19,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:19,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:19:19,160 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:19:19,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [586634711] [2022-07-14 14:19:19,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:19,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:19,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:19:19,171 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:19:19,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 14:19:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:19:19,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 14:19:19,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:19:19,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-14 14:19:19,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 14:19:19,554 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-14 14:19:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:19:19,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:19:19,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:19:19,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325557919] [2022-07-14 14:19:19,562 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:19:19,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586634711] [2022-07-14 14:19:19,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586634711] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:19:19,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:19:19,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:19:19,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491556263] [2022-07-14 14:19:19,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:19:19,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:19:19,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:19:19,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:19:19,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:19:19,566 INFO L87 Difference]: Start difference. First operand 434 states and 575 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2022-07-14 14:19:20,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:19:20,701 INFO L93 Difference]: Finished difference Result 524 states and 695 transitions. [2022-07-14 14:19:20,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 14:19:20,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 [2022-07-14 14:19:20,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:19:20,707 INFO L225 Difference]: With dead ends: 524 [2022-07-14 14:19:20,707 INFO L226 Difference]: Without dead ends: 522 [2022-07-14 14:19:20,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:19:20,709 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 198 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:19:20,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 1862 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-14 14:19:20,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-07-14 14:19:20,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 440. [2022-07-14 14:19:20,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 417 states have (on average 1.330935251798561) internal successors, (555), 427 states have internal predecessors, (555), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-14 14:19:20,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 582 transitions. [2022-07-14 14:19:20,735 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 582 transitions. Word has length 7 [2022-07-14 14:19:20,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:19:20,735 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 582 transitions. [2022-07-14 14:19:20,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2022-07-14 14:19:20,736 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 582 transitions. [2022-07-14 14:19:20,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 14:19:20,738 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:19:20,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:19:20,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 14:19:20,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:20,970 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:19:20,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:19:20,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1977167222, now seen corresponding path program 1 times [2022-07-14 14:19:20,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:19:20,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104925094] [2022-07-14 14:19:20,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:20,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:19:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:19:21,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:19:21,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:19:21,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104925094] [2022-07-14 14:19:21,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104925094] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:19:21,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:19:21,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:19:21,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694357948] [2022-07-14 14:19:21,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:19:21,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:19:21,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:19:21,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:19:21,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:19:21,082 INFO L87 Difference]: Start difference. First operand 440 states and 582 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:19:21,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:19:21,533 INFO L93 Difference]: Finished difference Result 688 states and 915 transitions. [2022-07-14 14:19:21,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:19:21,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-07-14 14:19:21,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:19:21,536 INFO L225 Difference]: With dead ends: 688 [2022-07-14 14:19:21,536 INFO L226 Difference]: Without dead ends: 440 [2022-07-14 14:19:21,537 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 [2022-07-14 14:19:21,538 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 3 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 14:19:21,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1549 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 14:19:21,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-07-14 14:19:21,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2022-07-14 14:19:21,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 417 states have (on average 1.328537170263789) internal successors, (554), 427 states have internal predecessors, (554), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-14 14:19:21,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 581 transitions. [2022-07-14 14:19:21,551 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 581 transitions. Word has length 44 [2022-07-14 14:19:21,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:19:21,552 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 581 transitions. [2022-07-14 14:19:21,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:19:21,552 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 581 transitions. [2022-07-14 14:19:21,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 14:19:21,554 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:19:21,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:19:21,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 14:19:21,555 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:19:21,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:19:21,556 INFO L85 PathProgramCache]: Analyzing trace with hash 772269224, now seen corresponding path program 1 times [2022-07-14 14:19:21,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:19:21,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23361221] [2022-07-14 14:19:21,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:21,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:19:21,693 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:19:21,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2106131231] [2022-07-14 14:19:21,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:21,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:21,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:19:21,704 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:19:21,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 14:19:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:19:22,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 1554 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:19:22,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:19:22,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:19:22,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:19:22,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:19:22,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23361221] [2022-07-14 14:19:22,272 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:19:22,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106131231] [2022-07-14 14:19:22,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106131231] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:19:22,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:19:22,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:19:22,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240356085] [2022-07-14 14:19:22,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:19:22,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:19:22,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:19:22,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:19:22,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:19:22,274 INFO L87 Difference]: Start difference. First operand 440 states and 581 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:19:22,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:19:22,363 INFO L93 Difference]: Finished difference Result 893 states and 1185 transitions. [2022-07-14 14:19:22,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:19:22,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-07-14 14:19:22,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:19:22,366 INFO L225 Difference]: With dead ends: 893 [2022-07-14 14:19:22,366 INFO L226 Difference]: Without dead ends: 461 [2022-07-14 14:19:22,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:19:22,369 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 9 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:19:22,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1095 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:19:22,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-07-14 14:19:22,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 460. [2022-07-14 14:19:22,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 437 states have (on average 1.3135011441647597) internal successors, (574), 447 states have internal predecessors, (574), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-14 14:19:22,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 601 transitions. [2022-07-14 14:19:22,381 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 601 transitions. Word has length 58 [2022-07-14 14:19:22,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:19:22,381 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 601 transitions. [2022-07-14 14:19:22,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:19:22,382 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 601 transitions. [2022-07-14 14:19:22,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 14:19:22,384 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:19:22,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:19:22,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 14:19:22,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-07-14 14:19:22,605 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:19:22,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:19:22,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1801628522, now seen corresponding path program 1 times [2022-07-14 14:19:22,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:19:22,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426153987] [2022-07-14 14:19:22,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:22,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:19:22,713 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:19:22,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1217976343] [2022-07-14 14:19:22,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:22,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:22,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:19:22,715 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:19:22,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 14:19:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:19:23,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 1556 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:19:23,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:19:23,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:19:23,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:19:23,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:19:23,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426153987] [2022-07-14 14:19:23,341 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:19:23,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217976343] [2022-07-14 14:19:23,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217976343] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:19:23,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:19:23,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:19:23,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976075113] [2022-07-14 14:19:23,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:19:23,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:19:23,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:19:23,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:19:23,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:19:23,351 INFO L87 Difference]: Start difference. First operand 460 states and 601 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:19:23,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:19:23,427 INFO L93 Difference]: Finished difference Result 986 states and 1296 transitions. [2022-07-14 14:19:23,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:19:23,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-07-14 14:19:23,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:19:23,430 INFO L225 Difference]: With dead ends: 986 [2022-07-14 14:19:23,430 INFO L226 Difference]: Without dead ends: 534 [2022-07-14 14:19:23,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:19:23,432 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 514 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:19:23,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 1488 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:19:23,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-07-14 14:19:23,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 446. [2022-07-14 14:19:23,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 423 states have (on average 1.3073286052009456) internal successors, (553), 433 states have internal predecessors, (553), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-14 14:19:23,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 580 transitions. [2022-07-14 14:19:23,445 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 580 transitions. Word has length 58 [2022-07-14 14:19:23,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:19:23,445 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 580 transitions. [2022-07-14 14:19:23,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:19:23,446 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 580 transitions. [2022-07-14 14:19:23,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 14:19:23,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:19:23,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:19:23,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 14:19:23,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:23,668 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:19:23,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:19:23,668 INFO L85 PathProgramCache]: Analyzing trace with hash -469402596, now seen corresponding path program 1 times [2022-07-14 14:19:23,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:19:23,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318629771] [2022-07-14 14:19:23,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:23,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:19:23,798 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:19:23,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134241341] [2022-07-14 14:19:23,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:23,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:23,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:19:23,811 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:19:23,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 14:19:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:19:24,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:19:24,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:19:24,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:19:24,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:19:24,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:19:24,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318629771] [2022-07-14 14:19:24,713 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:19:24,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134241341] [2022-07-14 14:19:24,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134241341] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:19:24,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:19:24,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:19:24,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772978582] [2022-07-14 14:19:24,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:19:24,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:19:24,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:19:24,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:19:24,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:19:24,716 INFO L87 Difference]: Start difference. First operand 446 states and 580 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:19:24,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:19:24,788 INFO L93 Difference]: Finished difference Result 1112 states and 1448 transitions. [2022-07-14 14:19:24,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:19:24,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-07-14 14:19:24,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:19:24,792 INFO L225 Difference]: With dead ends: 1112 [2022-07-14 14:19:24,792 INFO L226 Difference]: Without dead ends: 674 [2022-07-14 14:19:24,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:19:24,794 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 250 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:19:24,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 1111 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:19:24,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2022-07-14 14:19:24,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 670. [2022-07-14 14:19:24,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 642 states have (on average 1.2975077881619939) internal successors, (833), 652 states have internal predecessors, (833), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-07-14 14:19:24,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 870 transitions. [2022-07-14 14:19:24,813 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 870 transitions. Word has length 58 [2022-07-14 14:19:24,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:19:24,814 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 870 transitions. [2022-07-14 14:19:24,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:19:24,814 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 870 transitions. [2022-07-14 14:19:24,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-14 14:19:24,815 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:19:24,816 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:19:24,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 14:19:25,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:25,027 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:19:25,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:19:25,028 INFO L85 PathProgramCache]: Analyzing trace with hash -168092098, now seen corresponding path program 1 times [2022-07-14 14:19:25,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:19:25,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780823286] [2022-07-14 14:19:25,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:25,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:19:25,071 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:19:25,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118555488] [2022-07-14 14:19:25,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:25,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:25,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:19:25,073 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:19:25,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 14:19:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:19:25,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 14:19:25,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:19:25,616 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-14 14:19:25,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-14 14:19:25,641 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-14 14:19:25,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-14 14:19:25,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-14 14:19:25,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 14:19:25,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-14 14:19:25,693 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-14 14:19:25,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:19:25,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:19:25,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780823286] [2022-07-14 14:19:25,694 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:19:25,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118555488] [2022-07-14 14:19:25,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118555488] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:19:25,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:19:25,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 14:19:25,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740940380] [2022-07-14 14:19:25,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:19:25,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:19:25,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:19:25,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:19:25,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:19:25,696 INFO L87 Difference]: Start difference. First operand 670 states and 870 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 14:19:26,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:19:26,417 INFO L93 Difference]: Finished difference Result 1248 states and 1620 transitions. [2022-07-14 14:19:26,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 14:19:26,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2022-07-14 14:19:26,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:19:26,421 INFO L225 Difference]: With dead ends: 1248 [2022-07-14 14:19:26,421 INFO L226 Difference]: Without dead ends: 670 [2022-07-14 14:19:26,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:19:26,427 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 96 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1887 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 14:19:26,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 1887 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 14:19:26,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-07-14 14:19:26,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2022-07-14 14:19:26,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 642 states have (on average 1.2959501557632398) internal successors, (832), 652 states have internal predecessors, (832), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-07-14 14:19:26,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 869 transitions. [2022-07-14 14:19:26,446 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 869 transitions. Word has length 73 [2022-07-14 14:19:26,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:19:26,446 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 869 transitions. [2022-07-14 14:19:26,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 14:19:26,447 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 869 transitions. [2022-07-14 14:19:26,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-14 14:19:26,448 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:19:26,448 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:19:26,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 14:19:26,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:26,676 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:19:26,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:19:26,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1391864653, now seen corresponding path program 1 times [2022-07-14 14:19:26,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:19:26,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625220405] [2022-07-14 14:19:26,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:26,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:19:26,792 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:19:26,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [160835056] [2022-07-14 14:19:26,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:26,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:26,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:19:26,796 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:19:26,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 14:19:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:19:27,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 2122 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:19:27,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:19:27,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-14 14:19:27,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:19:27,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:19:27,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625220405] [2022-07-14 14:19:27,741 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:19:27,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160835056] [2022-07-14 14:19:27,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160835056] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:19:27,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:19:27,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:19:27,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016143382] [2022-07-14 14:19:27,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:19:27,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:19:27,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:19:27,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:19:27,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:19:27,744 INFO L87 Difference]: Start difference. First operand 670 states and 869 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 14:19:27,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:19:27,823 INFO L93 Difference]: Finished difference Result 1362 states and 1777 transitions. [2022-07-14 14:19:27,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:19:27,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 120 [2022-07-14 14:19:27,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:19:27,827 INFO L225 Difference]: With dead ends: 1362 [2022-07-14 14:19:27,827 INFO L226 Difference]: Without dead ends: 712 [2022-07-14 14:19:27,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:19:27,830 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 9 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:19:27,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1081 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:19:27,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2022-07-14 14:19:27,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 710. [2022-07-14 14:19:27,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 682 states have (on average 1.278592375366569) internal successors, (872), 692 states have internal predecessors, (872), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-07-14 14:19:27,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 909 transitions. [2022-07-14 14:19:27,849 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 909 transitions. Word has length 120 [2022-07-14 14:19:27,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:19:27,849 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 909 transitions. [2022-07-14 14:19:27,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 14:19:27,849 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 909 transitions. [2022-07-14 14:19:27,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-14 14:19:27,850 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:19:27,851 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:19:27,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-14 14:19:28,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:28,072 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:19:28,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:19:28,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1452942673, now seen corresponding path program 1 times [2022-07-14 14:19:28,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:19:28,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451486165] [2022-07-14 14:19:28,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:28,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:19:28,178 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:19:28,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [191868648] [2022-07-14 14:19:28,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:28,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:28,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:19:28,180 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:19:28,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 14:19:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:19:29,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 2126 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:19:29,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:19:29,158 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-14 14:19:29,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:19:29,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:19:29,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451486165] [2022-07-14 14:19:29,159 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:19:29,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191868648] [2022-07-14 14:19:29,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191868648] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:19:29,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:19:29,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:19:29,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306749498] [2022-07-14 14:19:29,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:19:29,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:19:29,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:19:29,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:19:29,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:19:29,166 INFO L87 Difference]: Start difference. First operand 710 states and 909 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 14:19:29,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:19:29,248 INFO L93 Difference]: Finished difference Result 1356 states and 1742 transitions. [2022-07-14 14:19:29,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:19:29,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 120 [2022-07-14 14:19:29,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:19:29,252 INFO L225 Difference]: With dead ends: 1356 [2022-07-14 14:19:29,252 INFO L226 Difference]: Without dead ends: 684 [2022-07-14 14:19:29,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:19:29,254 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 507 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:19:29,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1141 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:19:29,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-07-14 14:19:29,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 682. [2022-07-14 14:19:29,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 654 states have (on average 1.269113149847095) internal successors, (830), 664 states have internal predecessors, (830), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-07-14 14:19:29,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 867 transitions. [2022-07-14 14:19:29,272 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 867 transitions. Word has length 120 [2022-07-14 14:19:29,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:19:29,272 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 867 transitions. [2022-07-14 14:19:29,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 14:19:29,273 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 867 transitions. [2022-07-14 14:19:29,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-14 14:19:29,274 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:19:29,274 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:19:29,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-14 14:19:29,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:29,488 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:19:29,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:19:29,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1962601091, now seen corresponding path program 1 times [2022-07-14 14:19:29,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:19:29,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704035637] [2022-07-14 14:19:29,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:29,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:19:29,614 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:19:29,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655173866] [2022-07-14 14:19:29,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:29,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:29,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:19:29,622 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:19:29,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 14:19:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:19:30,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 2112 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:19:30,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:19:30,952 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-14 14:19:30,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:19:30,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:19:30,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704035637] [2022-07-14 14:19:30,953 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:19:30,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655173866] [2022-07-14 14:19:30,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655173866] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:19:30,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:19:30,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:19:30,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674176965] [2022-07-14 14:19:30,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:19:30,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:19:30,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:19:30,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:19:30,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:19:30,956 INFO L87 Difference]: Start difference. First operand 682 states and 867 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 14:19:31,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:19:31,037 INFO L93 Difference]: Finished difference Result 1543 states and 1986 transitions. [2022-07-14 14:19:31,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:19:31,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 120 [2022-07-14 14:19:31,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:19:31,042 INFO L225 Difference]: With dead ends: 1543 [2022-07-14 14:19:31,042 INFO L226 Difference]: Without dead ends: 921 [2022-07-14 14:19:31,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:19:31,045 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 220 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:19:31,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 1095 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:19:31,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-07-14 14:19:31,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 819. [2022-07-14 14:19:31,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 788 states have (on average 1.2766497461928934) internal successors, (1006), 798 states have internal predecessors, (1006), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2022-07-14 14:19:31,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1049 transitions. [2022-07-14 14:19:31,069 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1049 transitions. Word has length 120 [2022-07-14 14:19:31,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:19:31,069 INFO L495 AbstractCegarLoop]: Abstraction has 819 states and 1049 transitions. [2022-07-14 14:19:31,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 14:19:31,070 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1049 transitions. [2022-07-14 14:19:31,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-14 14:19:31,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:19:31,071 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:19:31,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-14 14:19:31,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-14 14:19:31,298 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:19:31,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:19:31,299 INFO L85 PathProgramCache]: Analyzing trace with hash 2019311684, now seen corresponding path program 1 times [2022-07-14 14:19:31,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:19:31,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843286623] [2022-07-14 14:19:31,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:31,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:19:31,368 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:19:31,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [548909021] [2022-07-14 14:19:31,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:31,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:31,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:19:31,370 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:19:31,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-14 14:19:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:19:46,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:19:46,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:19:46,134 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 14:19:46,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:19:46,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:19:46,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843286623] [2022-07-14 14:19:46,135 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:19:46,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548909021] [2022-07-14 14:19:46,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548909021] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:19:46,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:19:46,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:19:46,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920762483] [2022-07-14 14:19:46,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:19:46,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:19:46,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:19:46,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:19:46,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:19:46,139 INFO L87 Difference]: Start difference. First operand 819 states and 1049 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-14 14:19:46,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:19:46,197 INFO L93 Difference]: Finished difference Result 1587 states and 2050 transitions. [2022-07-14 14:19:46,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:19:46,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 135 [2022-07-14 14:19:46,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:19:46,202 INFO L225 Difference]: With dead ends: 1587 [2022-07-14 14:19:46,202 INFO L226 Difference]: Without dead ends: 822 [2022-07-14 14:19:46,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:19:46,206 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 2 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:19:46,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1664 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:19:46,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2022-07-14 14:19:46,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2022-07-14 14:19:46,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 790 states have (on average 1.2772151898734176) internal successors, (1009), 801 states have internal predecessors, (1009), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2022-07-14 14:19:46,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1055 transitions. [2022-07-14 14:19:46,253 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1055 transitions. Word has length 135 [2022-07-14 14:19:46,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:19:46,254 INFO L495 AbstractCegarLoop]: Abstraction has 822 states and 1055 transitions. [2022-07-14 14:19:46,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-14 14:19:46,254 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1055 transitions. [2022-07-14 14:19:46,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-14 14:19:46,256 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:19:46,256 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:19:46,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-14 14:19:46,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:46,483 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:19:46,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:19:46,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1160372552, now seen corresponding path program 1 times [2022-07-14 14:19:46,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:19:46,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102553403] [2022-07-14 14:19:46,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:46,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:19:46,560 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:19:46,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [664299112] [2022-07-14 14:19:46,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:19:46,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:19:46,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:19:46,562 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:19:46,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-14 14:22:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:22:40,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 1309 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 14:22:40,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:22:40,873 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-14 14:22:40,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:22:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-14 14:22:40,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:22:40,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102553403] [2022-07-14 14:22:40,958 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:22:40,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664299112] [2022-07-14 14:22:40,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664299112] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:22:40,959 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:22:40,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-14 14:22:40,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592376660] [2022-07-14 14:22:40,959 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:22:40,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 14:22:40,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:22:40,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 14:22:40,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 14:22:40,961 INFO L87 Difference]: Start difference. First operand 822 states and 1055 transitions. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 14:22:41,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:22:41,106 INFO L93 Difference]: Finished difference Result 1601 states and 2077 transitions. [2022-07-14 14:22:41,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 14:22:41,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 139 [2022-07-14 14:22:41,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:22:41,112 INFO L225 Difference]: With dead ends: 1601 [2022-07-14 14:22:41,112 INFO L226 Difference]: Without dead ends: 833 [2022-07-14 14:22:41,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-07-14 14:22:41,114 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 20 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:22:41,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1666 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:22:41,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2022-07-14 14:22:41,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 831. [2022-07-14 14:22:41,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 798 states have (on average 1.281954887218045) internal successors, (1023), 809 states have internal predecessors, (1023), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2022-07-14 14:22:41,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1069 transitions. [2022-07-14 14:22:41,142 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1069 transitions. Word has length 139 [2022-07-14 14:22:41,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:22:41,143 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1069 transitions. [2022-07-14 14:22:41,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 14:22:41,143 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1069 transitions. [2022-07-14 14:22:41,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-14 14:22:41,146 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:22:41,146 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:22:41,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-14 14:22:41,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-14 14:22:41,347 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 14:22:41,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:22:41,348 INFO L85 PathProgramCache]: Analyzing trace with hash 170979396, now seen corresponding path program 2 times [2022-07-14 14:22:41,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:22:41,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910990438] [2022-07-14 14:22:41,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:22:41,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:22:41,434 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:22:41,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515792973] [2022-07-14 14:22:41,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:22:41,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:22:41,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:22:41,436 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:22:41,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process