./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.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_BER_test8-2.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 fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:17:10,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:17:10,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:17:10,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:17:10,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:17:10,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:17:10,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:17:10,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:17:10,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:17:10,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:17:10,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:17:10,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:17:10,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:17:10,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:17:10,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:17:10,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:17:10,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:17:10,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:17:10,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:17:10,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:17:10,174 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:17:10,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:17:10,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:17:10,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:17:10,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:17:10,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:17:10,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:17:10,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:17:10,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:17:10,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:17:10,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:17:10,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:17:10,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:17:10,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:17:10,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:17:10,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:17:10,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:17:10,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:17:10,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:17:10,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:17:10,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:17:10,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:17:10,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:17:10,232 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:17:10,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:17:10,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:17:10,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:17:10,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:17:10,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:17:10,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:17:10,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:17:10,236 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:17:10,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:17:10,238 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:17:10,238 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:17:10,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:17:10,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:17:10,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:17:10,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:17:10,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:17:10,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:17:10,239 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:17:10,241 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:17:10,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:17:10,241 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:17:10,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:17:10,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:17:10,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:17:10,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:17:10,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:17:10,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:17:10,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:17:10,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:17:10,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:17:10,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:17:10,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:17:10,244 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c [2022-07-14 14:17:10,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:17:10,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:17:10,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:17:10,497 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:17:10,497 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:17:10,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2022-07-14 14:17:10,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ddb4891/b1f20d28d88443f3970fa31fed813b5b/FLAG8b7d4e4cf [2022-07-14 14:17:11,018 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:17:11,019 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2022-07-14 14:17:11,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ddb4891/b1f20d28d88443f3970fa31fed813b5b/FLAG8b7d4e4cf [2022-07-14 14:17:11,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ddb4891/b1f20d28d88443f3970fa31fed813b5b [2022-07-14 14:17:11,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:17:11,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:17:11,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:17:11,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:17:11,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:17:11,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:17:11" (1/1) ... [2022-07-14 14:17:11,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5039dba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:17:11, skipping insertion in model container [2022-07-14 14:17:11,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:17:11" (1/1) ... [2022-07-14 14:17:11,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:17:11,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:17:11,783 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_BER_test8-2.i[33021,33034] [2022-07-14 14:17:11,933 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_BER_test8-2.i[45234,45247] [2022-07-14 14:17:11,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:17:11,961 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:17:11,999 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_BER_test8-2.i[33021,33034] [2022-07-14 14:17:12,038 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_BER_test8-2.i[45234,45247] [2022-07-14 14:17:12,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:17:12,071 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:17:12,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:17:12 WrapperNode [2022-07-14 14:17:12,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:17:12,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:17:12,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:17:12,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:17:12,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:17:12" (1/1) ... [2022-07-14 14:17:12,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:17:12" (1/1) ... [2022-07-14 14:17:12,161 INFO L137 Inliner]: procedures = 177, calls = 348, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1157 [2022-07-14 14:17:12,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:17:12,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:17:12,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:17:12,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:17:12,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:17:12" (1/1) ... [2022-07-14 14:17:12,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:17:12" (1/1) ... [2022-07-14 14:17:12,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:17:12" (1/1) ... [2022-07-14 14:17:12,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:17:12" (1/1) ... [2022-07-14 14:17:12,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:17:12" (1/1) ... [2022-07-14 14:17:12,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:17:12" (1/1) ... [2022-07-14 14:17:12,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:17:12" (1/1) ... [2022-07-14 14:17:12,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:17:12,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:17:12,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:17:12,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:17:12,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:17:12" (1/1) ... [2022-07-14 14:17:12,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:17:12,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:17:12,385 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 14:17:12,391 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 14:17:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:17:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-14 14:17:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-14 14:17:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:17:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 14:17:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 14:17:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2022-07-14 14:17:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2022-07-14 14:17:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 14:17:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:17:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 14:17:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:17:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-14 14:17:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 14:17:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:17:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:17:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:17:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:17:12,599 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:17:12,600 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:17:13,671 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:17:13,685 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:17:13,686 INFO L299 CfgBuilder]: Removed 71 assume(true) statements. [2022-07-14 14:17:13,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:17:13 BoogieIcfgContainer [2022-07-14 14:17:13,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:17:13,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:17:13,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:17:13,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:17:13,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:17:11" (1/3) ... [2022-07-14 14:17:13,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64419322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:17:13, skipping insertion in model container [2022-07-14 14:17:13,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:17:12" (2/3) ... [2022-07-14 14:17:13,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64419322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:17:13, skipping insertion in model container [2022-07-14 14:17:13,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:17:13" (3/3) ... [2022-07-14 14:17:13,699 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test8-2.i [2022-07-14 14:17:13,714 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:17:13,714 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-07-14 14:17:13,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:17:13,794 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@57caa97f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@43dc79ca [2022-07-14 14:17:13,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-07-14 14:17:13,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 267 states, 235 states have (on average 1.702127659574468) internal successors, (400), 258 states have internal predecessors, (400), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-07-14 14:17:13,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 14:17:13,807 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:17:13,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:17:13,808 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 14:17:13,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:17:13,814 INFO L85 PathProgramCache]: Analyzing trace with hash 232940209, now seen corresponding path program 1 times [2022-07-14 14:17:13,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:17:13,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615333138] [2022-07-14 14:17:13,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:13,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:17:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:17:13,996 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 14:17:13,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:17:13,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615333138] [2022-07-14 14:17:13,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615333138] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:17:13,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:17:13,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:17:14,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781373185] [2022-07-14 14:17:14,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:17:14,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-14 14:17:14,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:17:14,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 14:17:14,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 14:17:14,036 INFO L87 Difference]: Start difference. First operand has 267 states, 235 states have (on average 1.702127659574468) internal successors, (400), 258 states have internal predecessors, (400), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) 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 14:17:14,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:17:14,080 INFO L93 Difference]: Finished difference Result 532 states and 895 transitions. [2022-07-14 14:17:14,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 14:17:14,082 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 14:17:14,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:17:14,091 INFO L225 Difference]: With dead ends: 532 [2022-07-14 14:17:14,092 INFO L226 Difference]: Without dead ends: 234 [2022-07-14 14:17:14,096 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 14:17:14,100 INFO L413 NwaCegarLoop]: 363 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, 363 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 14:17:14,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:17:14,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-07-14 14:17:14,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-07-14 14:17:14,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 203 states have (on average 1.374384236453202) internal successors, (279), 225 states have internal predecessors, (279), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-07-14 14:17:14,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 319 transitions. [2022-07-14 14:17:14,152 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 319 transitions. Word has length 7 [2022-07-14 14:17:14,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:17:14,153 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 319 transitions. [2022-07-14 14:17:14,153 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 14:17:14,153 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 319 transitions. [2022-07-14 14:17:14,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 14:17:14,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:17:14,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:17:14,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:17:14,154 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 14:17:14,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:17:14,155 INFO L85 PathProgramCache]: Analyzing trace with hash 232942131, now seen corresponding path program 1 times [2022-07-14 14:17:14,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:17:14,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637846871] [2022-07-14 14:17:14,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:14,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:17:14,180 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:17:14,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [787430275] [2022-07-14 14:17:14,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:14,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:17:14,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:17:14,183 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 14:17:14,203 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 14:17:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:17:14,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 14:17:14,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:17:14,446 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 14:17:14,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 14:17:14,518 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 22 treesize of output 10 [2022-07-14 14:17:14,530 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 14:17:14,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:17:14,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:17:14,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637846871] [2022-07-14 14:17:14,531 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:17:14,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787430275] [2022-07-14 14:17:14,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787430275] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:17:14,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:17:14,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:17:14,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131447469] [2022-07-14 14:17:14,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:17:14,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:17:14,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:17:14,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:17:14,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:17:14,538 INFO L87 Difference]: Start difference. First operand 234 states and 319 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 14:17:15,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:17:15,337 INFO L93 Difference]: Finished difference Result 362 states and 487 transitions. [2022-07-14 14:17:15,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 14:17:15,338 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 14:17:15,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:17:15,341 INFO L225 Difference]: With dead ends: 362 [2022-07-14 14:17:15,341 INFO L226 Difference]: Without dead ends: 360 [2022-07-14 14:17:15,342 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 14:17:15,343 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 197 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 14:17:15,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 1026 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 14:17:15,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-07-14 14:17:15,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 240. [2022-07-14 14:17:15,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 209 states have (on average 1.368421052631579) internal successors, (286), 231 states have internal predecessors, (286), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-07-14 14:17:15,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 326 transitions. [2022-07-14 14:17:15,367 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 326 transitions. Word has length 7 [2022-07-14 14:17:15,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:17:15,368 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 326 transitions. [2022-07-14 14:17:15,368 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 14:17:15,369 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 326 transitions. [2022-07-14 14:17:15,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-14 14:17:15,371 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:17:15,371 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] [2022-07-14 14:17:15,397 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 14:17:15,595 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 14:17:15,595 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 14:17:15,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:17:15,596 INFO L85 PathProgramCache]: Analyzing trace with hash 924007304, now seen corresponding path program 1 times [2022-07-14 14:17:15,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:17:15,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279950468] [2022-07-14 14:17:15,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:15,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:17:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:17:15,693 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 14:17:15,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:17:15,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279950468] [2022-07-14 14:17:15,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279950468] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:17:15,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:17:15,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:17:15,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005885182] [2022-07-14 14:17:15,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:17:15,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:17:15,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:17:15,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:17:15,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:17:15,699 INFO L87 Difference]: Start difference. First operand 240 states and 326 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 14:17:15,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:17:15,970 INFO L93 Difference]: Finished difference Result 448 states and 615 transitions. [2022-07-14 14:17:15,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:17:15,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 51 [2022-07-14 14:17:15,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:17:15,972 INFO L225 Difference]: With dead ends: 448 [2022-07-14 14:17:15,972 INFO L226 Difference]: Without dead ends: 319 [2022-07-14 14:17:15,973 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 14:17:15,974 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 100 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:17:15,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 847 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:17:15,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-07-14 14:17:15,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 240. [2022-07-14 14:17:15,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 209 states have (on average 1.3636363636363635) internal successors, (285), 231 states have internal predecessors, (285), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-07-14 14:17:16,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 325 transitions. [2022-07-14 14:17:16,003 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 325 transitions. Word has length 51 [2022-07-14 14:17:16,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:17:16,004 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 325 transitions. [2022-07-14 14:17:16,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 14:17:16,004 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 325 transitions. [2022-07-14 14:17:16,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-14 14:17:16,007 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:17:16,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:17:16,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 14:17:16,008 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 14:17:16,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:17:16,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1685087362, now seen corresponding path program 1 times [2022-07-14 14:17:16,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:17:16,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111494585] [2022-07-14 14:17:16,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:16,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:17:16,130 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:17:16,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [863504800] [2022-07-14 14:17:16,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:16,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:17:16,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:17:16,140 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 14:17:16,176 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 14:17:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:17:16,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 1557 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:17:16,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:17:16,705 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 14:17:16,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:17:16,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:17:16,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111494585] [2022-07-14 14:17:16,706 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:17:16,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863504800] [2022-07-14 14:17:16,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863504800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:17:16,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:17:16,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:17:16,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412952584] [2022-07-14 14:17:16,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:17:16,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:17:16,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:17:16,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:17:16,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:17:16,708 INFO L87 Difference]: Start difference. First operand 240 states and 325 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 14:17:16,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:17:16,762 INFO L93 Difference]: Finished difference Result 493 states and 673 transitions. [2022-07-14 14:17:16,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:17:16,763 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), 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 59 [2022-07-14 14:17:16,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:17:16,765 INFO L225 Difference]: With dead ends: 493 [2022-07-14 14:17:16,765 INFO L226 Difference]: Without dead ends: 261 [2022-07-14 14:17:16,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 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 14:17:16,766 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 10 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:17:16,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 583 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:17:16,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-07-14 14:17:16,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 260. [2022-07-14 14:17:16,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 229 states have (on average 1.331877729257642) internal successors, (305), 251 states have internal predecessors, (305), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-07-14 14:17:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 345 transitions. [2022-07-14 14:17:16,778 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 345 transitions. Word has length 59 [2022-07-14 14:17:16,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:17:16,778 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 345 transitions. [2022-07-14 14:17:16,778 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), 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 14:17:16,778 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 345 transitions. [2022-07-14 14:17:16,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-14 14:17:16,780 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:17:16,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:17:16,808 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 14:17:16,999 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 14:17:17,000 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 14:17:17,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:17:17,000 INFO L85 PathProgramCache]: Analyzing trace with hash -622531706, now seen corresponding path program 1 times [2022-07-14 14:17:17,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:17:17,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597396880] [2022-07-14 14:17:17,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:17,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:17:17,103 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:17:17,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [24638213] [2022-07-14 14:17:17,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:17,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:17:17,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:17:17,105 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 14:17:17,107 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 14:17:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:17:17,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 1561 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:17:17,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:17:17,720 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 14:17:17,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:17:17,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:17:17,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597396880] [2022-07-14 14:17:17,721 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:17:17,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24638213] [2022-07-14 14:17:17,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24638213] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:17:17,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:17:17,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:17:17,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109441372] [2022-07-14 14:17:17,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:17:17,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:17:17,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:17:17,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:17:17,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:17:17,723 INFO L87 Difference]: Start difference. First operand 260 states and 345 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 14:17:17,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:17:17,813 INFO L93 Difference]: Finished difference Result 502 states and 672 transitions. [2022-07-14 14:17:17,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:17:17,815 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), 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 59 [2022-07-14 14:17:17,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:17:17,817 INFO L225 Difference]: With dead ends: 502 [2022-07-14 14:17:17,817 INFO L226 Difference]: Without dead ends: 250 [2022-07-14 14:17:17,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 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 14:17:17,819 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 223 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:17:17,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 679 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:17:17,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-07-14 14:17:17,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 246. [2022-07-14 14:17:17,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 215 states have (on average 1.3209302325581396) internal successors, (284), 237 states have internal predecessors, (284), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-07-14 14:17:17,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 324 transitions. [2022-07-14 14:17:17,827 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 324 transitions. Word has length 59 [2022-07-14 14:17:17,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:17:17,827 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 324 transitions. [2022-07-14 14:17:17,827 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), 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 14:17:17,827 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 324 transitions. [2022-07-14 14:17:17,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-14 14:17:17,829 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:17:17,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:17:17,855 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 14:17:18,055 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 14:17:18,055 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 14:17:18,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:17:18,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1240049736, now seen corresponding path program 1 times [2022-07-14 14:17:18,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:17:18,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784955437] [2022-07-14 14:17:18,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:18,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:17:18,137 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:17:18,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145155264] [2022-07-14 14:17:18,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:18,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:17:18,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:17:18,139 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 14:17:18,141 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 14:17:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:17:18,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:17:18,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:17:18,900 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 14:17:18,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:17:18,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:17:18,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784955437] [2022-07-14 14:17:18,901 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:17:18,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145155264] [2022-07-14 14:17:18,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145155264] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:17:18,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:17:18,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:17:18,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93268340] [2022-07-14 14:17:18,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:17:18,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:17:18,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:17:18,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:17:18,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:17:18,903 INFO L87 Difference]: Start difference. First operand 246 states and 324 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 14:17:18,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:17:18,965 INFO L93 Difference]: Finished difference Result 377 states and 506 transitions. [2022-07-14 14:17:18,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 14:17:18,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 59 [2022-07-14 14:17:18,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:17:18,968 INFO L225 Difference]: With dead ends: 377 [2022-07-14 14:17:18,968 INFO L226 Difference]: Without dead ends: 376 [2022-07-14 14:17:18,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 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 14:17:18,969 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 95 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:17:18,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 919 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:17:18,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-07-14 14:17:18,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 343. [2022-07-14 14:17:18,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 307 states have (on average 1.283387622149837) internal successors, (394), 329 states have internal predecessors, (394), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (24), 9 states have call predecessors, (24), 24 states have call successors, (24) [2022-07-14 14:17:18,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 442 transitions. [2022-07-14 14:17:18,982 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 442 transitions. Word has length 59 [2022-07-14 14:17:18,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:17:18,982 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 442 transitions. [2022-07-14 14:17:18,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 14:17:18,983 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 442 transitions. [2022-07-14 14:17:18,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-14 14:17:18,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:17:18,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:17:19,014 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 14:17:19,207 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 14:17:19,207 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 14:17:19,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:17:19,208 INFO L85 PathProgramCache]: Analyzing trace with hash 213163890, now seen corresponding path program 1 times [2022-07-14 14:17:19,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:17:19,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644506825] [2022-07-14 14:17:19,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:19,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:17:19,312 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:17:19,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [489175190] [2022-07-14 14:17:19,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:19,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:17:19,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:17:19,332 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 14:17:19,338 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 14:17:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:17:20,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:17:20,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:17:20,104 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 14:17:20,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:17:20,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:17:20,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644506825] [2022-07-14 14:17:20,105 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:17:20,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489175190] [2022-07-14 14:17:20,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489175190] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:17:20,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:17:20,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:17:20,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672751468] [2022-07-14 14:17:20,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:17:20,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:17:20,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:17:20,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:17:20,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:17:20,107 INFO L87 Difference]: Start difference. First operand 343 states and 442 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 14:17:20,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:17:20,185 INFO L93 Difference]: Finished difference Result 343 states and 442 transitions. [2022-07-14 14:17:20,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:17:20,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 60 [2022-07-14 14:17:20,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:17:20,187 INFO L225 Difference]: With dead ends: 343 [2022-07-14 14:17:20,187 INFO L226 Difference]: Without dead ends: 342 [2022-07-14 14:17:20,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 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 14:17:20,188 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 269 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:17:20,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 539 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:17:20,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-07-14 14:17:20,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-07-14 14:17:20,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 307 states have (on average 1.280130293159609) internal successors, (393), 328 states have internal predecessors, (393), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (24), 9 states have call predecessors, (24), 24 states have call successors, (24) [2022-07-14 14:17:20,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 441 transitions. [2022-07-14 14:17:20,199 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 441 transitions. Word has length 60 [2022-07-14 14:17:20,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:17:20,200 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 441 transitions. [2022-07-14 14:17:20,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 14:17:20,200 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 441 transitions. [2022-07-14 14:17:20,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-14 14:17:20,201 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:17:20,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:17:20,232 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 14:17:20,415 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 14:17:20,416 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 14:17:20,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:17:20,416 INFO L85 PathProgramCache]: Analyzing trace with hash 56443402, now seen corresponding path program 1 times [2022-07-14 14:17:20,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:17:20,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488850578] [2022-07-14 14:17:20,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:20,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:17:20,527 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:17:20,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154099809] [2022-07-14 14:17:20,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:20,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:17:20,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:17:20,530 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 14:17:20,532 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 14:17:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:17:21,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:17:21,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:17:21,463 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 14:17:21,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:17:21,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:17:21,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488850578] [2022-07-14 14:17:21,464 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:17:21,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154099809] [2022-07-14 14:17:21,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154099809] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:17:21,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:17:21,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:17:21,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761838232] [2022-07-14 14:17:21,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:17:21,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:17:21,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:17:21,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:17:21,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:17:21,466 INFO L87 Difference]: Start difference. First operand 342 states and 441 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 14:17:21,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:17:21,543 INFO L93 Difference]: Finished difference Result 692 states and 904 transitions. [2022-07-14 14:17:21,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:17:21,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 72 [2022-07-14 14:17:21,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:17:21,546 INFO L225 Difference]: With dead ends: 692 [2022-07-14 14:17:21,546 INFO L226 Difference]: Without dead ends: 409 [2022-07-14 14:17:21,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 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 14:17:21,547 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 100 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:17:21,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 632 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:17:21,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-07-14 14:17:21,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 406. [2022-07-14 14:17:21,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 370 states have (on average 1.2891891891891891) internal successors, (477), 391 states have internal predecessors, (477), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (25), 10 states have call predecessors, (25), 25 states have call successors, (25) [2022-07-14 14:17:21,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 527 transitions. [2022-07-14 14:17:21,561 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 527 transitions. Word has length 72 [2022-07-14 14:17:21,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:17:21,561 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 527 transitions. [2022-07-14 14:17:21,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 14:17:21,561 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 527 transitions. [2022-07-14 14:17:21,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-14 14:17:21,562 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:17:21,563 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] [2022-07-14 14:17:21,594 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 14:17:21,791 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 14:17:21,791 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 14:17:21,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:17:21,792 INFO L85 PathProgramCache]: Analyzing trace with hash -865861414, now seen corresponding path program 1 times [2022-07-14 14:17:21,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:17:21,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607435348] [2022-07-14 14:17:21,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:21,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:17:21,829 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:17:21,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250793762] [2022-07-14 14:17:21,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:21,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:17:21,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:17:21,831 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 14:17:21,851 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 14:17:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:17:47,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 14:17:47,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:17:47,298 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:17:47,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:17:47,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:17:47,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607435348] [2022-07-14 14:17:47,299 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:17:47,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250793762] [2022-07-14 14:17:47,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250793762] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:17:47,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:17:47,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:17:47,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229273511] [2022-07-14 14:17:47,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:17:47,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:17:47,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:17:47,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:17:47,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:17:47,300 INFO L87 Difference]: Start difference. First operand 406 states and 527 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 14:17:47,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:17:47,332 INFO L93 Difference]: Finished difference Result 765 states and 1007 transitions. [2022-07-14 14:17:47,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:17:47,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 87 [2022-07-14 14:17:47,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:17:47,337 INFO L225 Difference]: With dead ends: 765 [2022-07-14 14:17:47,338 INFO L226 Difference]: Without dead ends: 412 [2022-07-14 14:17:47,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 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 14:17:47,339 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 2 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:17:47,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 920 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:17:47,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-07-14 14:17:47,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2022-07-14 14:17:47,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 374 states have (on average 1.2914438502673797) internal successors, (483), 397 states have internal predecessors, (483), 25 states have call successors, (25), 5 states have call predecessors, (25), 6 states have return successors, (27), 10 states have call predecessors, (27), 25 states have call successors, (27) [2022-07-14 14:17:47,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 535 transitions. [2022-07-14 14:17:47,355 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 535 transitions. Word has length 87 [2022-07-14 14:17:47,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:17:47,355 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 535 transitions. [2022-07-14 14:17:47,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 14:17:47,356 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 535 transitions. [2022-07-14 14:17:47,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-14 14:17:47,357 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:17:47,357 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:17:47,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-14 14:17:47,570 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 14:17:47,571 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 14:17:47,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:17:47,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1245758072, now seen corresponding path program 1 times [2022-07-14 14:17:47,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:17:47,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270664552] [2022-07-14 14:17:47,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:47,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:17:47,608 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:17:47,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481707237] [2022-07-14 14:17:47,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:17:47,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:17:47,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:17:47,610 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 14:17:47,627 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 14:18:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:18:02,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 14:18:02,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:18:02,706 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 14:18:02,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:18:02,811 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 14:18:02,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:18:02,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270664552] [2022-07-14 14:18:02,812 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 14:18:02,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481707237] [2022-07-14 14:18:02,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481707237] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:18:02,812 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 14:18:02,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-14 14:18:02,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152211206] [2022-07-14 14:18:02,813 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 14:18:02,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 14:18:02,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:18:02,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 14:18:02,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 14:18:02,814 INFO L87 Difference]: Start difference. First operand 412 states and 535 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 14:18:02,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:18:02,959 INFO L93 Difference]: Finished difference Result 793 states and 1049 transitions. [2022-07-14 14:18:02,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 14:18:02,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 89 [2022-07-14 14:18:02,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:18:02,962 INFO L225 Difference]: With dead ends: 793 [2022-07-14 14:18:02,962 INFO L226 Difference]: Without dead ends: 430 [2022-07-14 14:18:02,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-07-14 14:18:02,964 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 13 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:18:02,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1522 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:18:02,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-07-14 14:18:02,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2022-07-14 14:18:02,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 390 states have (on average 1.3) internal successors, (507), 413 states have internal predecessors, (507), 25 states have call successors, (25), 7 states have call predecessors, (25), 8 states have return successors, (27), 10 states have call predecessors, (27), 25 states have call successors, (27) [2022-07-14 14:18:02,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 559 transitions. [2022-07-14 14:18:02,980 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 559 transitions. Word has length 89 [2022-07-14 14:18:02,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:18:02,981 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 559 transitions. [2022-07-14 14:18:02,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 14:18:02,981 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 559 transitions. [2022-07-14 14:18:02,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-14 14:18:02,982 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:18:02,982 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2022-07-14 14:18:03,013 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 14:18:03,207 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 14:18:03,208 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-14 14:18:03,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:18:03,208 INFO L85 PathProgramCache]: Analyzing trace with hash -903000742, now seen corresponding path program 2 times [2022-07-14 14:18:03,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:18:03,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341009960] [2022-07-14 14:18:03,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:18:03,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:18:03,272 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 14:18:03,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928111111] [2022-07-14 14:18:03,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:18:03,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:18:03,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:18:03,274 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 14:18:03,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process