./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_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 b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 15:54:05,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 15:54:05,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 15:54:05,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 15:54:05,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 15:54:05,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 15:54:05,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 15:54:05,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 15:54:05,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 15:54:05,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 15:54:05,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 15:54:05,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 15:54:05,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 15:54:05,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 15:54:05,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 15:54:05,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 15:54:05,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 15:54:05,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 15:54:05,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 15:54:05,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 15:54:05,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 15:54:05,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 15:54:05,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 15:54:05,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 15:54:05,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 15:54:05,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 15:54:05,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 15:54:05,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 15:54:05,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 15:54:05,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 15:54:05,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 15:54:05,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 15:54:05,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 15:54:05,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 15:54:05,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 15:54:05,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 15:54:05,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 15:54:05,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 15:54:05,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 15:54:05,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 15:54:05,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 15:54:05,521 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-19 15:54:05,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 15:54:05,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 15:54:05,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 15:54:05,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 15:54:05,550 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-19 15:54:05,550 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-19 15:54:05,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 15:54:05,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 15:54:05,551 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 15:54:05,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 15:54:05,552 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 15:54:05,552 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 15:54:05,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 15:54:05,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 15:54:05,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 15:54:05,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-19 15:54:05,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-19 15:54:05,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-19 15:54:05,553 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-19 15:54:05,554 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 15:54:05,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 15:54:05,558 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 15:54:05,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-19 15:54:05,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 15:54:05,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 15:54:05,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-19 15:54:05,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:54:05,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 15:54:05,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-19 15:54:05,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-19 15:54:05,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 15:54:05,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-19 15:54:05,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-19 15:54:05,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 15:54:05,561 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d [2021-12-19 15:54:05,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 15:54:05,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 15:54:05,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 15:54:05,755 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 15:54:05,758 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 15:54:05,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2021-12-19 15:54:05,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/842604626/b3d1596642b3446a965134387be5c2ac/FLAGa9b5af943 [2021-12-19 15:54:06,158 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 15:54:06,159 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2021-12-19 15:54:06,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/842604626/b3d1596642b3446a965134387be5c2ac/FLAGa9b5af943 [2021-12-19 15:54:06,535 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/842604626/b3d1596642b3446a965134387be5c2ac [2021-12-19 15:54:06,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 15:54:06,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 15:54:06,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 15:54:06,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 15:54:06,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 15:54:06,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:54:06" (1/1) ... [2021-12-19 15:54:06,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe9460b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:54:06, skipping insertion in model container [2021-12-19 15:54:06,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:54:06" (1/1) ... [2021-12-19 15:54:06,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 15:54:06,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 15:54:06,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[33021,33034] [2021-12-19 15:54:06,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[45234,45247] [2021-12-19 15:54:06,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:54:06,989 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 15:54:07,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[33021,33034] [2021-12-19 15:54:07,051 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[45234,45247] [2021-12-19 15:54:07,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:54:07,092 INFO L208 MainTranslator]: Completed translation [2021-12-19 15:54:07,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:54:07 WrapperNode [2021-12-19 15:54:07,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 15:54:07,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 15:54:07,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 15:54:07,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 15:54:07,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:54:07" (1/1) ... [2021-12-19 15:54:07,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:54:07" (1/1) ... [2021-12-19 15:54:07,178 INFO L137 Inliner]: procedures = 177, calls = 348, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1157 [2021-12-19 15:54:07,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 15:54:07,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 15:54:07,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 15:54:07,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 15:54:07,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:54:07" (1/1) ... [2021-12-19 15:54:07,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:54:07" (1/1) ... [2021-12-19 15:54:07,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:54:07" (1/1) ... [2021-12-19 15:54:07,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:54:07" (1/1) ... [2021-12-19 15:54:07,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:54:07" (1/1) ... [2021-12-19 15:54:07,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:54:07" (1/1) ... [2021-12-19 15:54:07,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:54:07" (1/1) ... [2021-12-19 15:54:07,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 15:54:07,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 15:54:07,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 15:54:07,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 15:54:07,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:54:07" (1/1) ... [2021-12-19 15:54:07,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:54:07,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:54:07,263 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) [2021-12-19 15:54:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-19 15:54:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-19 15:54:07,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-19 15:54:07,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-19 15:54:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-19 15:54:07,310 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-19 15:54:07,310 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-12-19 15:54:07,310 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-12-19 15:54:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-19 15:54:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 15:54:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-19 15:54:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-19 15:54:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-19 15:54:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-19 15:54:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-19 15:54:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 15:54:07,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 15:54:07,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 15:54:07,296 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 [2021-12-19 15:54:07,494 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 15:54:07,495 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 15:54:08,078 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 15:54:08,085 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 15:54:08,086 INFO L301 CfgBuilder]: Removed 71 assume(true) statements. [2021-12-19 15:54:08,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:54:08 BoogieIcfgContainer [2021-12-19 15:54:08,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 15:54:08,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-19 15:54:08,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-19 15:54:08,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-19 15:54:08,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:54:06" (1/3) ... [2021-12-19 15:54:08,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a22eb79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:54:08, skipping insertion in model container [2021-12-19 15:54:08,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:54:07" (2/3) ... [2021-12-19 15:54:08,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a22eb79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:54:08, skipping insertion in model container [2021-12-19 15:54:08,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:54:08" (3/3) ... [2021-12-19 15:54:08,096 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test8-2.i [2021-12-19 15:54:08,102 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-19 15:54:08,102 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-12-19 15:54:08,155 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-19 15:54:08,176 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-19 15:54:08,177 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-19 15:54:08,192 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) [2021-12-19 15:54:08,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-19 15:54:08,194 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:54:08,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:54:08,194 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:54:08,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:54:08,200 INFO L85 PathProgramCache]: Analyzing trace with hash 232940209, now seen corresponding path program 1 times [2021-12-19 15:54:08,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:54:08,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113086378] [2021-12-19 15:54:08,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:08,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:54:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:54:08,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:54:08,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:54:08,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113086378] [2021-12-19 15:54:08,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113086378] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:54:08,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:54:08,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:54:08,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852638678] [2021-12-19 15:54:08,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:54:08,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-19 15:54:08,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:54:08,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-19 15:54:08,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-19 15:54:08,373 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) [2021-12-19 15:54:08,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:54:08,426 INFO L93 Difference]: Finished difference Result 532 states and 895 transitions. [2021-12-19 15:54:08,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-19 15:54:08,434 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 [2021-12-19 15:54:08,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:54:08,441 INFO L225 Difference]: With dead ends: 532 [2021-12-19 15:54:08,442 INFO L226 Difference]: Without dead ends: 234 [2021-12-19 15:54:08,445 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:54:08,447 INFO L933 BasicCegarLoop]: 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 [2021-12-19 15:54:08,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:54:08,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-12-19 15:54:08,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-12-19 15:54:08,480 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) [2021-12-19 15:54:08,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 319 transitions. [2021-12-19 15:54:08,482 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 319 transitions. Word has length 7 [2021-12-19 15:54:08,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:54:08,483 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 319 transitions. [2021-12-19 15:54:08,483 INFO L471 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) [2021-12-19 15:54:08,483 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 319 transitions. [2021-12-19 15:54:08,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-19 15:54:08,484 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:54:08,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:54:08,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-19 15:54:08,485 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:54:08,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:54:08,485 INFO L85 PathProgramCache]: Analyzing trace with hash 232942131, now seen corresponding path program 1 times [2021-12-19 15:54:08,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:54:08,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912109984] [2021-12-19 15:54:08,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:08,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:54:08,503 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 15:54:08,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1558634748] [2021-12-19 15:54:08,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:08,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:08,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:54:08,506 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) [2021-12-19 15:54:08,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-19 15:54:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:54:08,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-19 15:54:08,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:54:08,712 INFO L388 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 [2021-12-19 15:54:08,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-19 15:54:08,760 INFO L388 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 [2021-12-19 15:54:08,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:54:08,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 15:54:08,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:54:08,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912109984] [2021-12-19 15:54:08,769 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 15:54:08,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558634748] [2021-12-19 15:54:08,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558634748] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:54:08,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:54:08,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:54:08,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383505589] [2021-12-19 15:54:08,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:54:08,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:54:08,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:54:08,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:54:08,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:54:08,772 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) [2021-12-19 15:54:09,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:54:09,186 INFO L93 Difference]: Finished difference Result 362 states and 487 transitions. [2021-12-19 15:54:09,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 15:54:09,186 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 [2021-12-19 15:54:09,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:54:09,188 INFO L225 Difference]: With dead ends: 362 [2021-12-19 15:54:09,188 INFO L226 Difference]: Without dead ends: 360 [2021-12-19 15:54:09,189 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:54:09,189 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 197 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-19 15:54:09,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 1039 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-19 15:54:09,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-12-19 15:54:09,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 240. [2021-12-19 15:54:09,204 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) [2021-12-19 15:54:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 326 transitions. [2021-12-19 15:54:09,206 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 326 transitions. Word has length 7 [2021-12-19 15:54:09,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:54:09,206 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 326 transitions. [2021-12-19 15:54:09,206 INFO L471 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) [2021-12-19 15:54:09,206 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 326 transitions. [2021-12-19 15:54:09,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-19 15:54:09,208 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:54:09,208 INFO L514 BasicCegarLoop]: 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] [2021-12-19 15:54:09,227 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-19 15:54:09,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:09,424 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:54:09,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:54:09,425 INFO L85 PathProgramCache]: Analyzing trace with hash 924007304, now seen corresponding path program 1 times [2021-12-19 15:54:09,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:54:09,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538272892] [2021-12-19 15:54:09,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:09,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:54:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:54:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:54:09,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:54:09,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538272892] [2021-12-19 15:54:09,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538272892] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:54:09,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:54:09,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:54:09,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927941553] [2021-12-19 15:54:09,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:54:09,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:54:09,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:54:09,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:54:09,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:54:09,483 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) [2021-12-19 15:54:09,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:54:09,689 INFO L93 Difference]: Finished difference Result 448 states and 615 transitions. [2021-12-19 15:54:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:54:09,690 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 [2021-12-19 15:54:09,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:54:09,692 INFO L225 Difference]: With dead ends: 448 [2021-12-19 15:54:09,692 INFO L226 Difference]: Without dead ends: 319 [2021-12-19 15:54:09,692 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:54:09,693 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 100 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-19 15:54:09,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 855 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-19 15:54:09,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-12-19 15:54:09,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 240. [2021-12-19 15:54:09,704 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) [2021-12-19 15:54:09,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 325 transitions. [2021-12-19 15:54:09,706 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 325 transitions. Word has length 51 [2021-12-19 15:54:09,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:54:09,706 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 325 transitions. [2021-12-19 15:54:09,706 INFO L471 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) [2021-12-19 15:54:09,706 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 325 transitions. [2021-12-19 15:54:09,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-19 15:54:09,707 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:54:09,707 INFO L514 BasicCegarLoop]: 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] [2021-12-19 15:54:09,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-19 15:54:09,708 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:54:09,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:54:09,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1685087362, now seen corresponding path program 1 times [2021-12-19 15:54:09,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:54:09,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838954682] [2021-12-19 15:54:09,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:09,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:54:09,816 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 15:54:09,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2090782766] [2021-12-19 15:54:09,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:09,820 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:09,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:54:09,840 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) [2021-12-19 15:54:09,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-19 15:54:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:54:10,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 1551 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 15:54:10,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:54:10,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:54:10,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 15:54:10,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:54:10,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838954682] [2021-12-19 15:54:10,362 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 15:54:10,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090782766] [2021-12-19 15:54:10,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090782766] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:54:10,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:54:10,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:54:10,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439855580] [2021-12-19 15:54:10,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:54:10,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:54:10,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:54:10,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:54:10,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:54:10,364 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) [2021-12-19 15:54:10,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:54:10,437 INFO L93 Difference]: Finished difference Result 493 states and 673 transitions. [2021-12-19 15:54:10,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:54:10,438 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 [2021-12-19 15:54:10,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:54:10,439 INFO L225 Difference]: With dead ends: 493 [2021-12-19 15:54:10,439 INFO L226 Difference]: Without dead ends: 261 [2021-12-19 15:54:10,440 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:54:10,440 INFO L933 BasicCegarLoop]: 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, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:54:10,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 583 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:54:10,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-12-19 15:54:10,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 260. [2021-12-19 15:54:10,448 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) [2021-12-19 15:54:10,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 345 transitions. [2021-12-19 15:54:10,449 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 345 transitions. Word has length 59 [2021-12-19 15:54:10,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:54:10,449 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 345 transitions. [2021-12-19 15:54:10,449 INFO L471 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) [2021-12-19 15:54:10,449 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 345 transitions. [2021-12-19 15:54:10,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-19 15:54:10,450 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:54:10,450 INFO L514 BasicCegarLoop]: 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] [2021-12-19 15:54:10,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-19 15:54:10,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-19 15:54:10,668 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:54:10,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:54:10,668 INFO L85 PathProgramCache]: Analyzing trace with hash -622531706, now seen corresponding path program 1 times [2021-12-19 15:54:10,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:54:10,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608990425] [2021-12-19 15:54:10,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:10,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:54:10,757 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 15:54:10,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1560998328] [2021-12-19 15:54:10,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:10,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:10,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:54:10,764 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) [2021-12-19 15:54:10,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-19 15:54:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:54:11,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 1555 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 15:54:11,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:54:11,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:54:11,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 15:54:11,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:54:11,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608990425] [2021-12-19 15:54:11,405 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 15:54:11,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560998328] [2021-12-19 15:54:11,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560998328] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:54:11,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:54:11,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:54:11,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872284578] [2021-12-19 15:54:11,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:54:11,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:54:11,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:54:11,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:54:11,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:54:11,407 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) [2021-12-19 15:54:11,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:54:11,484 INFO L93 Difference]: Finished difference Result 502 states and 672 transitions. [2021-12-19 15:54:11,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:54:11,485 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 [2021-12-19 15:54:11,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:54:11,486 INFO L225 Difference]: With dead ends: 502 [2021-12-19 15:54:11,486 INFO L226 Difference]: Without dead ends: 250 [2021-12-19 15:54:11,487 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:54:11,489 INFO L933 BasicCegarLoop]: 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, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:54:11,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 679 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:54:11,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-12-19 15:54:11,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 246. [2021-12-19 15:54:11,508 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) [2021-12-19 15:54:11,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 324 transitions. [2021-12-19 15:54:11,511 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 324 transitions. Word has length 59 [2021-12-19 15:54:11,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:54:11,511 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 324 transitions. [2021-12-19 15:54:11,511 INFO L471 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) [2021-12-19 15:54:11,511 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 324 transitions. [2021-12-19 15:54:11,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-19 15:54:11,514 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:54:11,514 INFO L514 BasicCegarLoop]: 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] [2021-12-19 15:54:11,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-19 15:54:11,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:11,734 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:54:11,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:54:11,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1240049736, now seen corresponding path program 1 times [2021-12-19 15:54:11,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:54:11,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156395699] [2021-12-19 15:54:11,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:11,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:54:11,800 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 15:54:11,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1705482694] [2021-12-19 15:54:11,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:11,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:11,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:54:11,802 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) [2021-12-19 15:54:11,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-19 15:54:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:54:12,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 1541 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 15:54:12,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:54:12,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:54:12,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 15:54:12,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:54:12,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156395699] [2021-12-19 15:54:12,556 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 15:54:12,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705482694] [2021-12-19 15:54:12,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705482694] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:54:12,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:54:12,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:54:12,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331045853] [2021-12-19 15:54:12,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:54:12,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:54:12,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:54:12,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:54:12,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:54:12,558 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) [2021-12-19 15:54:12,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:54:12,608 INFO L93 Difference]: Finished difference Result 377 states and 506 transitions. [2021-12-19 15:54:12,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 15:54:12,608 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 [2021-12-19 15:54:12,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:54:12,611 INFO L225 Difference]: With dead ends: 377 [2021-12-19 15:54:12,611 INFO L226 Difference]: Without dead ends: 376 [2021-12-19 15:54:12,611 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:54:12,612 INFO L933 BasicCegarLoop]: 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 [2021-12-19 15:54:12,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 919 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:54:12,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-12-19 15:54:12,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 343. [2021-12-19 15:54:12,625 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) [2021-12-19 15:54:12,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 442 transitions. [2021-12-19 15:54:12,627 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 442 transitions. Word has length 59 [2021-12-19 15:54:12,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:54:12,628 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 442 transitions. [2021-12-19 15:54:12,628 INFO L471 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) [2021-12-19 15:54:12,628 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 442 transitions. [2021-12-19 15:54:12,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-19 15:54:12,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:54:12,646 INFO L514 BasicCegarLoop]: 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] [2021-12-19 15:54:12,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-19 15:54:12,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:12,865 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:54:12,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:54:12,866 INFO L85 PathProgramCache]: Analyzing trace with hash 213163890, now seen corresponding path program 1 times [2021-12-19 15:54:12,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:54:12,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419010956] [2021-12-19 15:54:12,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:12,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:54:12,935 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 15:54:12,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [561135762] [2021-12-19 15:54:12,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:12,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:12,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:54:12,960 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) [2021-12-19 15:54:12,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-19 15:54:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:54:13,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 15:54:13,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:54:13,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:54:13,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 15:54:13,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:54:13,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419010956] [2021-12-19 15:54:13,673 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 15:54:13,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561135762] [2021-12-19 15:54:13,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561135762] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:54:13,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:54:13,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:54:13,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071092663] [2021-12-19 15:54:13,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:54:13,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:54:13,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:54:13,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:54:13,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:54:13,675 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) [2021-12-19 15:54:13,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:54:13,742 INFO L93 Difference]: Finished difference Result 343 states and 442 transitions. [2021-12-19 15:54:13,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:54:13,743 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 [2021-12-19 15:54:13,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:54:13,745 INFO L225 Difference]: With dead ends: 343 [2021-12-19 15:54:13,745 INFO L226 Difference]: Without dead ends: 342 [2021-12-19 15:54:13,746 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:54:13,747 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 269 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2021-12-19 15:54:13,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 539 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:54:13,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-12-19 15:54:13,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-12-19 15:54:13,776 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) [2021-12-19 15:54:13,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 441 transitions. [2021-12-19 15:54:13,777 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 441 transitions. Word has length 60 [2021-12-19 15:54:13,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:54:13,778 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 441 transitions. [2021-12-19 15:54:13,778 INFO L471 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) [2021-12-19 15:54:13,778 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 441 transitions. [2021-12-19 15:54:13,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-19 15:54:13,779 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:54:13,779 INFO L514 BasicCegarLoop]: 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] [2021-12-19 15:54:13,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-19 15:54:13,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:13,979 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:54:13,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:54:13,980 INFO L85 PathProgramCache]: Analyzing trace with hash 56443402, now seen corresponding path program 1 times [2021-12-19 15:54:13,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:54:13,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261951411] [2021-12-19 15:54:13,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:13,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:54:14,086 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 15:54:14,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176945087] [2021-12-19 15:54:14,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:14,087 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:14,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:54:14,093 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) [2021-12-19 15:54:14,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-19 15:54:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:54:14,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 15:54:14,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:54:15,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:54:15,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 15:54:15,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:54:15,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261951411] [2021-12-19 15:54:15,008 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 15:54:15,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176945087] [2021-12-19 15:54:15,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176945087] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:54:15,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:54:15,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:54:15,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173212045] [2021-12-19 15:54:15,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:54:15,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:54:15,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:54:15,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:54:15,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:54:15,009 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) [2021-12-19 15:54:15,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:54:15,073 INFO L93 Difference]: Finished difference Result 692 states and 904 transitions. [2021-12-19 15:54:15,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:54:15,073 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 [2021-12-19 15:54:15,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:54:15,075 INFO L225 Difference]: With dead ends: 692 [2021-12-19 15:54:15,075 INFO L226 Difference]: Without dead ends: 409 [2021-12-19 15:54:15,076 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:54:15,076 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 100 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:54:15,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 636 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:54:15,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2021-12-19 15:54:15,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 406. [2021-12-19 15:54:15,103 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) [2021-12-19 15:54:15,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 527 transitions. [2021-12-19 15:54:15,105 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 527 transitions. Word has length 72 [2021-12-19 15:54:15,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:54:15,105 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 527 transitions. [2021-12-19 15:54:15,105 INFO L471 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) [2021-12-19 15:54:15,106 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 527 transitions. [2021-12-19 15:54:15,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-19 15:54:15,106 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:54:15,107 INFO L514 BasicCegarLoop]: 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] [2021-12-19 15:54:15,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-19 15:54:15,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:15,319 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:54:15,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:54:15,320 INFO L85 PathProgramCache]: Analyzing trace with hash -865861414, now seen corresponding path program 1 times [2021-12-19 15:54:15,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:54:15,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402234104] [2021-12-19 15:54:15,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:15,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:54:15,354 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 15:54:15,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1988973281] [2021-12-19 15:54:15,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:15,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:15,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:54:15,356 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) [2021-12-19 15:54:15,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-19 15:54:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:54:15,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-19 15:54:15,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:54:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-19 15:54:16,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 15:54:16,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:54:16,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402234104] [2021-12-19 15:54:16,031 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 15:54:16,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988973281] [2021-12-19 15:54:16,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988973281] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:54:16,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:54:16,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:54:16,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047156288] [2021-12-19 15:54:16,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:54:16,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:54:16,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:54:16,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:54:16,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:54:16,033 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), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-19 15:54:16,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:54:16,059 INFO L93 Difference]: Finished difference Result 765 states and 1007 transitions. [2021-12-19 15:54:16,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:54:16,060 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), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 87 [2021-12-19 15:54:16,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:54:16,061 INFO L225 Difference]: With dead ends: 765 [2021-12-19 15:54:16,061 INFO L226 Difference]: Without dead ends: 412 [2021-12-19 15:54:16,062 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:54:16,062 INFO L933 BasicCegarLoop]: 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 [2021-12-19 15:54:16,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 920 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:54:16,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-12-19 15:54:16,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2021-12-19 15:54:16,071 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) [2021-12-19 15:54:16,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 535 transitions. [2021-12-19 15:54:16,072 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 535 transitions. Word has length 87 [2021-12-19 15:54:16,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:54:16,072 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 535 transitions. [2021-12-19 15:54:16,073 INFO L471 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), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-19 15:54:16,073 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 535 transitions. [2021-12-19 15:54:16,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-19 15:54:16,073 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:54:16,074 INFO L514 BasicCegarLoop]: 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] [2021-12-19 15:54:16,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-19 15:54:16,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:16,295 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:54:16,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:54:16,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1245758072, now seen corresponding path program 1 times [2021-12-19 15:54:16,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:54:16,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859121891] [2021-12-19 15:54:16,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:16,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:54:16,323 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 15:54:16,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631389780] [2021-12-19 15:54:16,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:16,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:16,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:54:16,325 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) [2021-12-19 15:54:16,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-19 15:54:17,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:54:17,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-19 15:54:17,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:54:17,439 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-19 15:54:17,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:54:17,610 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-19 15:54:17,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:54:17,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859121891] [2021-12-19 15:54:17,611 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 15:54:17,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631389780] [2021-12-19 15:54:17,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631389780] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:54:17,611 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 15:54:17,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-19 15:54:17,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236199931] [2021-12-19 15:54:17,611 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 15:54:17,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-19 15:54:17,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:54:17,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-19 15:54:17,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-19 15:54:17,612 INFO L87 Difference]: Start difference. First operand 412 states and 535 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-19 15:54:17,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:54:17,718 INFO L93 Difference]: Finished difference Result 793 states and 1051 transitions. [2021-12-19 15:54:17,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-19 15:54:17,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2021-12-19 15:54:17,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:54:17,720 INFO L225 Difference]: With dead ends: 793 [2021-12-19 15:54:17,720 INFO L226 Difference]: Without dead ends: 430 [2021-12-19 15:54:17,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-12-19 15:54:17,721 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 22 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:54:17,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 1521 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:54:17,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-12-19 15:54:17,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2021-12-19 15:54:17,732 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, (29), 10 states have call predecessors, (29), 25 states have call successors, (29) [2021-12-19 15:54:17,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 561 transitions. [2021-12-19 15:54:17,733 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 561 transitions. Word has length 89 [2021-12-19 15:54:17,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:54:17,733 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 561 transitions. [2021-12-19 15:54:17,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-19 15:54:17,734 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 561 transitions. [2021-12-19 15:54:17,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-19 15:54:17,735 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:54:17,735 INFO L514 BasicCegarLoop]: 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] [2021-12-19 15:54:17,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-19 15:54:17,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-19 15:54:17,952 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:54:17,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:54:17,952 INFO L85 PathProgramCache]: Analyzing trace with hash 213616922, now seen corresponding path program 2 times [2021-12-19 15:54:17,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:54:17,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758494426] [2021-12-19 15:54:17,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:17,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:54:17,983 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 15:54:17,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1627996625] [2021-12-19 15:54:17,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 15:54:17,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:17,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:54:18,000 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) [2021-12-19 15:54:18,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-19 15:54:20,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-19 15:54:20,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:54:20,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 25 conjunts are in the unsatisfiable core [2021-12-19 15:54:20,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:54:20,332 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-19 15:54:20,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:54:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-19 15:54:20,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:54:20,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758494426] [2021-12-19 15:54:20,610 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 15:54:20,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627996625] [2021-12-19 15:54:20,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627996625] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:54:20,614 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 15:54:20,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-12-19 15:54:20,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088291824] [2021-12-19 15:54:20,614 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 15:54:20,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-19 15:54:20,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:54:20,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-19 15:54:20,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-12-19 15:54:20,620 INFO L87 Difference]: Start difference. First operand 430 states and 561 transitions. Second operand has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 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) [2021-12-19 15:54:20,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:54:20,952 INFO L93 Difference]: Finished difference Result 859 states and 1131 transitions. [2021-12-19 15:54:20,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-19 15:54:20,953 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 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 93 [2021-12-19 15:54:20,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:54:20,954 INFO L225 Difference]: With dead ends: 859 [2021-12-19 15:54:20,954 INFO L226 Difference]: Without dead ends: 436 [2021-12-19 15:54:20,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2021-12-19 15:54:20,956 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 241 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2165 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-19 15:54:20,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2165 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-19 15:54:20,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2021-12-19 15:54:20,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 432. [2021-12-19 15:54:20,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 392 states have (on average 1.3035714285714286) internal successors, (511), 415 states have internal predecessors, (511), 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) [2021-12-19 15:54:20,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 563 transitions. [2021-12-19 15:54:20,966 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 563 transitions. Word has length 93 [2021-12-19 15:54:20,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:54:20,966 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 563 transitions. [2021-12-19 15:54:20,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 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) [2021-12-19 15:54:20,966 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 563 transitions. [2021-12-19 15:54:20,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-19 15:54:20,967 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:54:20,967 INFO L514 BasicCegarLoop]: trace histogram [10, 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] [2021-12-19 15:54:20,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-19 15:54:21,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:21,181 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:54:21,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:54:21,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1701512806, now seen corresponding path program 3 times [2021-12-19 15:54:21,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:54:21,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288717973] [2021-12-19 15:54:21,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:54:21,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:54:21,212 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 15:54:21,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261091631] [2021-12-19 15:54:21,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-19 15:54:21,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:54:21,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:54:21,227 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:54:21,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-19 15:59:39,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-19 15:59:39,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:59:39,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-19 15:59:39,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:59:39,817 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 37 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-19 15:59:39,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:59:40,012 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 37 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-19 15:59:40,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:59:40,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288717973] [2021-12-19 15:59:40,012 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 15:59:40,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261091631] [2021-12-19 15:59:40,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261091631] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:59:40,012 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 15:59:40,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-12-19 15:59:40,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979888200] [2021-12-19 15:59:40,013 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 15:59:40,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-19 15:59:40,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:59:40,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-19 15:59:40,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-19 15:59:40,014 INFO L87 Difference]: Start difference. First operand 432 states and 563 transitions. Second operand has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-19 15:59:40,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:59:40,442 INFO L93 Difference]: Finished difference Result 833 states and 1097 transitions. [2021-12-19 15:59:40,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-19 15:59:40,442 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 97 [2021-12-19 15:59:40,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:59:40,444 INFO L225 Difference]: With dead ends: 833 [2021-12-19 15:59:40,444 INFO L226 Difference]: Without dead ends: 456 [2021-12-19 15:59:40,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=227, Invalid=423, Unknown=0, NotChecked=0, Total=650 [2021-12-19 15:59:40,445 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 54 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:59:40,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 1820 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:59:40,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-12-19 15:59:40,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 444. [2021-12-19 15:59:40,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 404 states have (on average 1.3143564356435644) internal successors, (531), 427 states have internal predecessors, (531), 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) [2021-12-19 15:59:40,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 583 transitions. [2021-12-19 15:59:40,459 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 583 transitions. Word has length 97 [2021-12-19 15:59:40,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:59:40,459 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 583 transitions. [2021-12-19 15:59:40,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-19 15:59:40,459 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 583 transitions. [2021-12-19 15:59:40,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-19 15:59:40,460 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:59:40,460 INFO L514 BasicCegarLoop]: trace histogram [16, 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] [2021-12-19 15:59:40,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-19 15:59:40,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-19 15:59:40,687 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:59:40,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:59:40,688 INFO L85 PathProgramCache]: Analyzing trace with hash 82656666, now seen corresponding path program 4 times [2021-12-19 15:59:40,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:59:40,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876405805] [2021-12-19 15:59:40,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:59:40,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:59:40,725 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 15:59:40,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1464540753] [2021-12-19 15:59:40,726 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-19 15:59:40,726 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:59:40,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:59:40,727 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:59:40,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-19 15:59:41,661 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-19 15:59:41,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:59:41,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 33 conjunts are in the unsatisfiable core [2021-12-19 15:59:41,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:59:41,818 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 80 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-19 15:59:41,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:59:42,267 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-12-19 15:59:42,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:59:42,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876405805] [2021-12-19 15:59:42,267 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 15:59:42,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464540753] [2021-12-19 15:59:42,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464540753] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:59:42,268 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 15:59:42,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-12-19 15:59:42,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538666313] [2021-12-19 15:59:42,268 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 15:59:42,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-19 15:59:42,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:59:42,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-19 15:59:42,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-12-19 15:59:42,269 INFO L87 Difference]: Start difference. First operand 444 states and 583 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 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) [2021-12-19 15:59:45,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:59:45,290 INFO L93 Difference]: Finished difference Result 872 states and 1159 transitions. [2021-12-19 15:59:45,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-19 15:59:45,290 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 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 103 [2021-12-19 15:59:45,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:59:45,292 INFO L225 Difference]: With dead ends: 872 [2021-12-19 15:59:45,292 INFO L226 Difference]: Without dead ends: 476 [2021-12-19 15:59:45,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=369, Invalid=687, Unknown=0, NotChecked=0, Total=1056 [2021-12-19 15:59:45,293 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 84 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-19 15:59:45,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 2734 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-19 15:59:45,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-12-19 15:59:45,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 460. [2021-12-19 15:59:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 420 states have (on average 1.2976190476190477) internal successors, (545), 443 states have internal predecessors, (545), 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) [2021-12-19 15:59:45,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 597 transitions. [2021-12-19 15:59:45,303 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 597 transitions. Word has length 103 [2021-12-19 15:59:45,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:59:45,303 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 597 transitions. [2021-12-19 15:59:45,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 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) [2021-12-19 15:59:45,304 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 597 transitions. [2021-12-19 15:59:45,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-19 15:59:45,304 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:59:45,305 INFO L514 BasicCegarLoop]: trace histogram [24, 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] [2021-12-19 15:59:45,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-19 15:59:45,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-19 15:59:45,519 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 15:59:45,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:59:45,520 INFO L85 PathProgramCache]: Analyzing trace with hash 576626330, now seen corresponding path program 5 times [2021-12-19 15:59:45,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:59:45,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219128184] [2021-12-19 15:59:45,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:59:45,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:59:45,555 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 15:59:45,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202717294] [2021-12-19 15:59:45,556 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-19 15:59:45,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:59:45,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:59:45,557 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:59:45,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process Killed by 15