./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 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_JEN_test6-2.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 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:04:33,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:04:33,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:04:33,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:04:33,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:04:33,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:04:33,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:04:33,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:04:33,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:04:33,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:04:33,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:04:33,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:04:33,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:04:33,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:04:33,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:04:33,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:04:33,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:04:33,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:04:33,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:04:33,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:04:33,138 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:04:33,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:04:33,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:04:33,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:04:33,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:04:33,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:04:33,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:04:33,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:04:33,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:04:33,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:04:33,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:04:33,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:04:33,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:04:33,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:04:33,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:04:33,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:04:33,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:04:33,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:04:33,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:04:33,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:04:33,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:04:33,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:04:33,158 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-22 01:04:33,188 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:04:33,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:04:33,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:04:33,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:04:33,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 01:04:33,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 01:04:33,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:04:33,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:04:33,191 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:04:33,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:04:33,191 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 01:04:33,192 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:04:33,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:04:33,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 01:04:33,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:04:33,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 01:04:33,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 01:04:33,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 01:04:33,198 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 01:04:33,198 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 01:04:33,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:04:33,198 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:04:33,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 01:04:33,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:04:33,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:04:33,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 01:04:33,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 01:04:33,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:04:33,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 01:04:33,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 01:04:33,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:04:33,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 01:04:33,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 01:04:33,200 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2022-07-22 01:04:33,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:04:33,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:04:33,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:04:33,493 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:04:33,494 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:04:33,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2022-07-22 01:04:33,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797b608a9/2c5d0f5aa2c345ce8d5619eb4c0b20f3/FLAG7a3db9804 [2022-07-22 01:04:33,936 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:04:33,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2022-07-22 01:04:33,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797b608a9/2c5d0f5aa2c345ce8d5619eb4c0b20f3/FLAG7a3db9804 [2022-07-22 01:04:34,284 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797b608a9/2c5d0f5aa2c345ce8d5619eb4c0b20f3 [2022-07-22 01:04:34,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:04:34,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:04:34,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:04:34,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:04:34,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:04:34,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:04:34" (1/1) ... [2022-07-22 01:04:34,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37309732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:04:34, skipping insertion in model container [2022-07-22 01:04:34,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:04:34" (1/1) ... [2022-07-22 01:04:34,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:04:34,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:04:34,759 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_JEN_test6-2.i[44118,44131] [2022-07-22 01:04:34,769 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_JEN_test6-2.i[44660,44673] [2022-07-22 01:04:34,866 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_JEN_test6-2.i[56247,56260] [2022-07-22 01:04:34,867 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_JEN_test6-2.i[56368,56381] [2022-07-22 01:04:34,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:04:34,893 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:04:34,924 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_JEN_test6-2.i[44118,44131] [2022-07-22 01:04:34,935 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_JEN_test6-2.i[44660,44673] [2022-07-22 01:04:34,987 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_JEN_test6-2.i[56247,56260] [2022-07-22 01:04:34,997 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_JEN_test6-2.i[56368,56381] [2022-07-22 01:04:35,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:04:35,054 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:04:35,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:04:35 WrapperNode [2022-07-22 01:04:35,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:04:35,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:04:35,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:04:35,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:04:35,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:04:35" (1/1) ... [2022-07-22 01:04:35,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:04:35" (1/1) ... [2022-07-22 01:04:35,169 INFO L137 Inliner]: procedures = 282, calls = 347, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1209 [2022-07-22 01:04:35,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:04:35,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:04:35,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:04:35,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:04:35,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:04:35" (1/1) ... [2022-07-22 01:04:35,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:04:35" (1/1) ... [2022-07-22 01:04:35,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:04:35" (1/1) ... [2022-07-22 01:04:35,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:04:35" (1/1) ... [2022-07-22 01:04:35,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:04:35" (1/1) ... [2022-07-22 01:04:35,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:04:35" (1/1) ... [2022-07-22 01:04:35,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:04:35" (1/1) ... [2022-07-22 01:04:35,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:04:35,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:04:35,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:04:35,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:04:35,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:04:35" (1/1) ... [2022-07-22 01:04:35,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 01:04:35,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:35,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 01:04:35,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 01:04:35,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 01:04:35,376 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-22 01:04:35,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 01:04:35,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 01:04:35,377 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2022-07-22 01:04:35,377 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2022-07-22 01:04:35,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 01:04:35,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 01:04:35,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 01:04:35,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 01:04:35,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 01:04:35,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 01:04:35,378 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2022-07-22 01:04:35,378 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2022-07-22 01:04:35,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 01:04:35,378 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2022-07-22 01:04:35,378 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2022-07-22 01:04:35,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 01:04:35,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:04:35,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:04:35,618 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:04:35,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:04:36,478 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:04:36,484 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:04:36,484 INFO L299 CfgBuilder]: Removed 72 assume(true) statements. [2022-07-22 01:04:36,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:04:36 BoogieIcfgContainer [2022-07-22 01:04:36,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:04:36,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 01:04:36,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 01:04:36,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 01:04:36,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:04:34" (1/3) ... [2022-07-22 01:04:36,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@403894ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:04:36, skipping insertion in model container [2022-07-22 01:04:36,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:04:35" (2/3) ... [2022-07-22 01:04:36,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@403894ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:04:36, skipping insertion in model container [2022-07-22 01:04:36,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:04:36" (3/3) ... [2022-07-22 01:04:36,491 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-2.i [2022-07-22 01:04:36,501 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 01:04:36,501 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-07-22 01:04:36,540 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 01:04:36,545 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2f262d91, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7a058d50 [2022-07-22 01:04:36,545 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-07-22 01:04:36,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 278 states, 244 states have (on average 1.651639344262295) internal successors, (403), 258 states have internal predecessors, (403), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-22 01:04:36,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 01:04:36,556 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:36,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:04:36,556 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:36,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:36,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1831503788, now seen corresponding path program 1 times [2022-07-22 01:04:36,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:36,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270285041] [2022-07-22 01:04:36,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:36,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:36,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:04:36,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:36,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270285041] [2022-07-22 01:04:36,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270285041] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:04:36,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:04:36,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:04:36,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51988579] [2022-07-22 01:04:36,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:04:36,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 01:04:36,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:36,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 01:04:36,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 01:04:36,751 INFO L87 Difference]: Start difference. First operand has 278 states, 244 states have (on average 1.651639344262295) internal successors, (403), 258 states have internal predecessors, (403), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:04:36,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:36,799 INFO L93 Difference]: Finished difference Result 551 states and 876 transitions. [2022-07-22 01:04:36,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 01:04:36,800 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-22 01:04:36,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:36,816 INFO L225 Difference]: With dead ends: 551 [2022-07-22 01:04:36,816 INFO L226 Difference]: Without dead ends: 271 [2022-07-22 01:04:36,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 01:04:36,824 INFO L413 NwaCegarLoop]: 351 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, 351 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:36,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:04:36,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-07-22 01:04:36,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2022-07-22 01:04:36,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 238 states have (on average 1.3319327731092436) internal successors, (317), 252 states have internal predecessors, (317), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-22 01:04:36,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 347 transitions. [2022-07-22 01:04:36,884 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 347 transitions. Word has length 8 [2022-07-22 01:04:36,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:36,885 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 347 transitions. [2022-07-22 01:04:36,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:04:36,885 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 347 transitions. [2022-07-22 01:04:36,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 01:04:36,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:36,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:04:36,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 01:04:36,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:36,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:36,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1831505710, now seen corresponding path program 1 times [2022-07-22 01:04:36,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:36,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265854934] [2022-07-22 01:04:36,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:36,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:36,941 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:04:36,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [841740049] [2022-07-22 01:04:36,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:36,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:36,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:36,947 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:04:36,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 01:04:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:37,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-22 01:04:37,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:04:37,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-22 01:04:37,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-22 01:04:37,186 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-22 01:04:37,187 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-22 01:04:37,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 01:04:37,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-22 01:04:37,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:04:37,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:04:37,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:37,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265854934] [2022-07-22 01:04:37,260 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:04:37,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841740049] [2022-07-22 01:04:37,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841740049] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:04:37,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:04:37,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 01:04:37,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973071960] [2022-07-22 01:04:37,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:04:37,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 01:04:37,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:37,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 01:04:37,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 01:04:37,267 INFO L87 Difference]: Start difference. First operand 271 states and 347 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:04:37,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:37,962 INFO L93 Difference]: Finished difference Result 418 states and 545 transitions. [2022-07-22 01:04:37,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 01:04:37,962 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-22 01:04:37,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:37,965 INFO L225 Difference]: With dead ends: 418 [2022-07-22 01:04:37,965 INFO L226 Difference]: Without dead ends: 416 [2022-07-22 01:04:37,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-22 01:04:37,966 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 264 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:37,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 1373 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 01:04:37,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-07-22 01:04:37,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 278. [2022-07-22 01:04:37,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 245 states have (on average 1.3265306122448979) internal successors, (325), 259 states have internal predecessors, (325), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-22 01:04:37,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 355 transitions. [2022-07-22 01:04:37,992 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 355 transitions. Word has length 8 [2022-07-22 01:04:37,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:37,993 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 355 transitions. [2022-07-22 01:04:37,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:04:37,993 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 355 transitions. [2022-07-22 01:04:37,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-22 01:04:37,994 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:37,994 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:04:38,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 01:04:38,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:38,218 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:38,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:38,219 INFO L85 PathProgramCache]: Analyzing trace with hash 66914197, now seen corresponding path program 1 times [2022-07-22 01:04:38,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:38,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731773342] [2022-07-22 01:04:38,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:38,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:38,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 01:04:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:38,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 01:04:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:38,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 01:04:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:38,331 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 01:04:38,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:38,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731773342] [2022-07-22 01:04:38,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731773342] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:04:38,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:04:38,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 01:04:38,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552239688] [2022-07-22 01:04:38,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:04:38,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:04:38,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:38,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:04:38,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:04:38,333 INFO L87 Difference]: Start difference. First operand 278 states and 355 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-22 01:04:38,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:38,555 INFO L93 Difference]: Finished difference Result 542 states and 701 transitions. [2022-07-22 01:04:38,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:04:38,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2022-07-22 01:04:38,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:38,557 INFO L225 Difference]: With dead ends: 542 [2022-07-22 01:04:38,557 INFO L226 Difference]: Without dead ends: 396 [2022-07-22 01:04:38,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:04:38,558 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 138 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:38,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 951 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 01:04:38,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-07-22 01:04:38,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 278. [2022-07-22 01:04:38,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 245 states have (on average 1.3224489795918368) internal successors, (324), 259 states have internal predecessors, (324), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-22 01:04:38,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 354 transitions. [2022-07-22 01:04:38,566 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 354 transitions. Word has length 34 [2022-07-22 01:04:38,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:38,566 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 354 transitions. [2022-07-22 01:04:38,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-22 01:04:38,567 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 354 transitions. [2022-07-22 01:04:38,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-22 01:04:38,567 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:38,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:04:38,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 01:04:38,568 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:38,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:38,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1327548217, now seen corresponding path program 1 times [2022-07-22 01:04:38,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:38,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648985535] [2022-07-22 01:04:38,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:38,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:38,618 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:04:38,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1686172014] [2022-07-22 01:04:38,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:38,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:38,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:38,631 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:04:38,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 01:04:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:38,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:04:38,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:04:38,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:04:38,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:04:38,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:38,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648985535] [2022-07-22 01:04:38,835 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:04:38,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686172014] [2022-07-22 01:04:38,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686172014] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:04:38,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:04:38,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:04:38,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174895271] [2022-07-22 01:04:38,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:04:38,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:04:38,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:38,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:04:38,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:04:38,837 INFO L87 Difference]: Start difference. First operand 278 states and 354 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:04:38,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:38,887 INFO L93 Difference]: Finished difference Result 568 states and 730 transitions. [2022-07-22 01:04:38,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:04:38,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 45 [2022-07-22 01:04:38,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:38,889 INFO L225 Difference]: With dead ends: 568 [2022-07-22 01:04:38,889 INFO L226 Difference]: Without dead ends: 299 [2022-07-22 01:04:38,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:04:38,891 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 9 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:38,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 639 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:04:38,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-07-22 01:04:38,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 298. [2022-07-22 01:04:38,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 265 states have (on average 1.2981132075471697) internal successors, (344), 279 states have internal predecessors, (344), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-22 01:04:38,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 374 transitions. [2022-07-22 01:04:38,899 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 374 transitions. Word has length 45 [2022-07-22 01:04:38,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:38,899 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 374 transitions. [2022-07-22 01:04:38,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:04:38,900 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 374 transitions. [2022-07-22 01:04:38,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-22 01:04:38,901 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:38,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:04:38,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-22 01:04:39,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-07-22 01:04:39,125 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:39,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:39,126 INFO L85 PathProgramCache]: Analyzing trace with hash 485935029, now seen corresponding path program 1 times [2022-07-22 01:04:39,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:39,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558545384] [2022-07-22 01:04:39,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:39,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:39,158 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:04:39,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716536868] [2022-07-22 01:04:39,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:39,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:39,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:39,169 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:04:39,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 01:04:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:39,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:04:39,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:04:39,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:04:39,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:04:39,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:39,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558545384] [2022-07-22 01:04:39,360 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:04:39,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716536868] [2022-07-22 01:04:39,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716536868] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:04:39,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:04:39,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 01:04:39,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684384815] [2022-07-22 01:04:39,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:04:39,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:04:39,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:39,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:04:39,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:04:39,362 INFO L87 Difference]: Start difference. First operand 298 states and 374 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:04:39,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:39,411 INFO L93 Difference]: Finished difference Result 577 states and 729 transitions. [2022-07-22 01:04:39,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:04:39,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 45 [2022-07-22 01:04:39,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:39,413 INFO L225 Difference]: With dead ends: 577 [2022-07-22 01:04:39,413 INFO L226 Difference]: Without dead ends: 288 [2022-07-22 01:04:39,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:04:39,414 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 276 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:39,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 704 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:04:39,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-07-22 01:04:39,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 284. [2022-07-22 01:04:39,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 251 states have (on average 1.2868525896414342) internal successors, (323), 265 states have internal predecessors, (323), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-22 01:04:39,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 353 transitions. [2022-07-22 01:04:39,427 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 353 transitions. Word has length 45 [2022-07-22 01:04:39,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:39,428 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 353 transitions. [2022-07-22 01:04:39,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:04:39,428 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 353 transitions. [2022-07-22 01:04:39,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-22 01:04:39,429 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:39,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:04:39,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 01:04:39,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:39,646 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:39,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:39,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1565834691, now seen corresponding path program 1 times [2022-07-22 01:04:39,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:39,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29269338] [2022-07-22 01:04:39,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:39,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:39,665 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:04:39,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [402250708] [2022-07-22 01:04:39,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:39,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:39,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:39,689 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:04:39,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 01:04:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:39,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:04:39,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:04:39,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:04:39,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:04:39,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:39,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29269338] [2022-07-22 01:04:39,944 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:04:39,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402250708] [2022-07-22 01:04:39,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402250708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:04:39,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:04:39,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:04:39,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555348175] [2022-07-22 01:04:39,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:04:39,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:04:39,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:39,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:04:39,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:04:39,945 INFO L87 Difference]: Start difference. First operand 284 states and 353 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:04:39,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:39,978 INFO L93 Difference]: Finished difference Result 507 states and 632 transitions. [2022-07-22 01:04:39,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 01:04:39,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 45 [2022-07-22 01:04:39,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:39,981 INFO L225 Difference]: With dead ends: 507 [2022-07-22 01:04:39,981 INFO L226 Difference]: Without dead ends: 505 [2022-07-22 01:04:39,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:04:39,982 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 228 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:39,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 1021 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:04:39,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-07-22 01:04:39,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 495. [2022-07-22 01:04:39,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 451 states have (on average 1.2860310421286032) internal successors, (580), 466 states have internal predecessors, (580), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2022-07-22 01:04:39,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 628 transitions. [2022-07-22 01:04:39,994 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 628 transitions. Word has length 45 [2022-07-22 01:04:39,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:39,995 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 628 transitions. [2022-07-22 01:04:39,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:04:39,995 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 628 transitions. [2022-07-22 01:04:39,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-22 01:04:39,996 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:39,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:04:40,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 01:04:40,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:40,211 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:40,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:40,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1296235199, now seen corresponding path program 1 times [2022-07-22 01:04:40,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:40,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435636567] [2022-07-22 01:04:40,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:40,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:40,228 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:04:40,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [347861317] [2022-07-22 01:04:40,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:40,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:40,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:40,232 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:04:40,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 01:04:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:40,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:04:40,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:04:40,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:04:40,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:04:40,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:40,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435636567] [2022-07-22 01:04:40,463 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:04:40,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347861317] [2022-07-22 01:04:40,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347861317] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:04:40,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:04:40,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:04:40,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356666752] [2022-07-22 01:04:40,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:04:40,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:04:40,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:40,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:04:40,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:04:40,465 INFO L87 Difference]: Start difference. First operand 495 states and 628 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:04:40,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:40,497 INFO L93 Difference]: Finished difference Result 881 states and 1130 transitions. [2022-07-22 01:04:40,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 01:04:40,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 46 [2022-07-22 01:04:40,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:40,500 INFO L225 Difference]: With dead ends: 881 [2022-07-22 01:04:40,501 INFO L226 Difference]: Without dead ends: 879 [2022-07-22 01:04:40,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:04:40,501 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 275 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:40,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 1022 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:04:40,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2022-07-22 01:04:40,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 868. [2022-07-22 01:04:40,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 803 states have (on average 1.2976338729763388) internal successors, (1042), 821 states have internal predecessors, (1042), 41 states have call successors, (41), 13 states have call predecessors, (41), 10 states have return successors, (44), 34 states have call predecessors, (44), 41 states have call successors, (44) [2022-07-22 01:04:40,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1127 transitions. [2022-07-22 01:04:40,521 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1127 transitions. Word has length 46 [2022-07-22 01:04:40,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:40,521 INFO L495 AbstractCegarLoop]: Abstraction has 868 states and 1127 transitions. [2022-07-22 01:04:40,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:04:40,521 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1127 transitions. [2022-07-22 01:04:40,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-22 01:04:40,522 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:40,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:04:40,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 01:04:40,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:40,740 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:40,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:40,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1626206984, now seen corresponding path program 1 times [2022-07-22 01:04:40,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:40,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923514267] [2022-07-22 01:04:40,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:40,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:40,764 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:04:40,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139997705] [2022-07-22 01:04:40,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:40,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:40,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:40,766 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:04:40,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 01:04:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:40,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:04:40,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:04:41,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:04:41,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:04:41,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:41,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923514267] [2022-07-22 01:04:41,008 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:04:41,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139997705] [2022-07-22 01:04:41,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139997705] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:04:41,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:04:41,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-22 01:04:41,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324781280] [2022-07-22 01:04:41,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:04:41,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:04:41,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:41,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:04:41,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:04:41,010 INFO L87 Difference]: Start difference. First operand 868 states and 1127 transitions. Second operand has 3 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 01:04:41,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:41,037 INFO L93 Difference]: Finished difference Result 897 states and 1150 transitions. [2022-07-22 01:04:41,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:04:41,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2022-07-22 01:04:41,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:41,042 INFO L225 Difference]: With dead ends: 897 [2022-07-22 01:04:41,042 INFO L226 Difference]: Without dead ends: 896 [2022-07-22 01:04:41,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:04:41,043 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 233 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:41,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 685 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:04:41,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2022-07-22 01:04:41,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 886. [2022-07-22 01:04:41,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 816 states have (on average 1.2941176470588236) internal successors, (1056), 835 states have internal predecessors, (1056), 44 states have call successors, (44), 15 states have call predecessors, (44), 12 states have return successors, (47), 37 states have call predecessors, (47), 44 states have call successors, (47) [2022-07-22 01:04:41,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1147 transitions. [2022-07-22 01:04:41,068 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1147 transitions. Word has length 55 [2022-07-22 01:04:41,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:41,068 INFO L495 AbstractCegarLoop]: Abstraction has 886 states and 1147 transitions. [2022-07-22 01:04:41,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 01:04:41,068 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1147 transitions. [2022-07-22 01:04:41,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 01:04:41,069 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:41,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:04:41,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 01:04:41,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:41,291 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:41,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:41,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1127190987, now seen corresponding path program 1 times [2022-07-22 01:04:41,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:41,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139899936] [2022-07-22 01:04:41,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:41,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:41,322 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:04:41,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [149215419] [2022-07-22 01:04:41,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:41,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:41,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:41,323 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:04:41,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 01:04:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:41,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:04:41,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:04:41,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:04:41,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:04:41,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:41,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139899936] [2022-07-22 01:04:41,582 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:04:41,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149215419] [2022-07-22 01:04:41,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149215419] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:04:41,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:04:41,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-22 01:04:41,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987558478] [2022-07-22 01:04:41,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:04:41,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:04:41,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:41,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:04:41,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:04:41,584 INFO L87 Difference]: Start difference. First operand 886 states and 1147 transitions. Second operand has 3 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 01:04:41,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:41,598 INFO L93 Difference]: Finished difference Result 886 states and 1147 transitions. [2022-07-22 01:04:41,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:04:41,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-07-22 01:04:41,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:41,601 INFO L225 Difference]: With dead ends: 886 [2022-07-22 01:04:41,601 INFO L226 Difference]: Without dead ends: 885 [2022-07-22 01:04:41,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:04:41,602 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 283 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:41,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 336 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:04:41,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2022-07-22 01:04:41,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 885. [2022-07-22 01:04:41,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 816 states have (on average 1.2916666666666667) internal successors, (1054), 834 states have internal predecessors, (1054), 44 states have call successors, (44), 15 states have call predecessors, (44), 12 states have return successors, (47), 37 states have call predecessors, (47), 44 states have call successors, (47) [2022-07-22 01:04:41,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1145 transitions. [2022-07-22 01:04:41,634 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1145 transitions. Word has length 56 [2022-07-22 01:04:41,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:41,634 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1145 transitions. [2022-07-22 01:04:41,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 01:04:41,634 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1145 transitions. [2022-07-22 01:04:41,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-22 01:04:41,635 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:41,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:04:41,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 01:04:41,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:41,853 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:41,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:41,853 INFO L85 PathProgramCache]: Analyzing trace with hash -906147032, now seen corresponding path program 1 times [2022-07-22 01:04:41,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:41,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268920459] [2022-07-22 01:04:41,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:41,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:41,919 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:04:41,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803255149] [2022-07-22 01:04:41,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:41,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:41,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:41,921 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:04:41,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 01:04:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:42,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 1557 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:04:42,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:04:42,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:04:42,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:04:42,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:42,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268920459] [2022-07-22 01:04:42,474 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:04:42,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803255149] [2022-07-22 01:04:42,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803255149] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:04:42,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:04:42,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:04:42,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202436694] [2022-07-22 01:04:42,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:04:42,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:04:42,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:42,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:04:42,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:04:42,476 INFO L87 Difference]: Start difference. First operand 885 states and 1145 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:04:42,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:42,572 INFO L93 Difference]: Finished difference Result 1673 states and 2167 transitions. [2022-07-22 01:04:42,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:04:42,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-07-22 01:04:42,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:42,575 INFO L225 Difference]: With dead ends: 1673 [2022-07-22 01:04:42,575 INFO L226 Difference]: Without dead ends: 797 [2022-07-22 01:04:42,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:04:42,577 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 143 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:42,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 671 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 01:04:42,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2022-07-22 01:04:42,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 731. [2022-07-22 01:04:42,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 673 states have (on average 1.2823179791976227) internal successors, (863), 689 states have internal predecessors, (863), 36 states have call successors, (36), 11 states have call predecessors, (36), 9 states have return successors, (39), 32 states have call predecessors, (39), 36 states have call successors, (39) [2022-07-22 01:04:42,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 938 transitions. [2022-07-22 01:04:42,591 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 938 transitions. Word has length 58 [2022-07-22 01:04:42,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:42,591 INFO L495 AbstractCegarLoop]: Abstraction has 731 states and 938 transitions. [2022-07-22 01:04:42,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:04:42,591 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 938 transitions. [2022-07-22 01:04:42,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-22 01:04:42,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:42,592 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 01:04:42,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-22 01:04:42,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-22 01:04:42,807 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:42,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:42,808 INFO L85 PathProgramCache]: Analyzing trace with hash 680301287, now seen corresponding path program 1 times [2022-07-22 01:04:42,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:42,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646412261] [2022-07-22 01:04:42,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:42,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:42,829 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:04:42,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1169705812] [2022-07-22 01:04:42,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:42,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:42,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:42,830 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:04:42,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 01:04:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:43,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 01:04:43,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:04:43,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:04:43,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:04:43,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:04:43,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:43,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646412261] [2022-07-22 01:04:43,397 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:04:43,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169705812] [2022-07-22 01:04:43,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169705812] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:04:43,397 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:04:43,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2022-07-22 01:04:43,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275506031] [2022-07-22 01:04:43,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:04:43,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 01:04:43,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:43,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 01:04:43,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-07-22 01:04:43,399 INFO L87 Difference]: Start difference. First operand 731 states and 938 transitions. Second operand has 14 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 01:04:44,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:44,072 INFO L93 Difference]: Finished difference Result 2391 states and 3102 transitions. [2022-07-22 01:04:44,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 01:04:44,073 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 64 [2022-07-22 01:04:44,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:44,079 INFO L225 Difference]: With dead ends: 2391 [2022-07-22 01:04:44,079 INFO L226 Difference]: Without dead ends: 2389 [2022-07-22 01:04:44,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=597, Unknown=0, NotChecked=0, Total=870 [2022-07-22 01:04:44,081 INFO L413 NwaCegarLoop]: 773 mSDtfsCounter, 1777 mSDsluCounter, 4111 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 4884 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:44,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 4884 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 01:04:44,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2022-07-22 01:04:44,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 2111. [2022-07-22 01:04:44,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2111 states, 1969 states have (on average 1.2869476891823262) internal successors, (2534), 1989 states have internal predecessors, (2534), 105 states have call successors, (105), 29 states have call predecessors, (105), 24 states have return successors, (126), 93 states have call predecessors, (126), 105 states have call successors, (126) [2022-07-22 01:04:44,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2111 states to 2111 states and 2765 transitions. [2022-07-22 01:04:44,149 INFO L78 Accepts]: Start accepts. Automaton has 2111 states and 2765 transitions. Word has length 64 [2022-07-22 01:04:44,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:44,149 INFO L495 AbstractCegarLoop]: Abstraction has 2111 states and 2765 transitions. [2022-07-22 01:04:44,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 01:04:44,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2111 states and 2765 transitions. [2022-07-22 01:04:44,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-22 01:04:44,150 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:44,150 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-07-22 01:04:44,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-22 01:04:44,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:44,364 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:44,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:44,364 INFO L85 PathProgramCache]: Analyzing trace with hash 329250764, now seen corresponding path program 1 times [2022-07-22 01:04:44,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:44,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520514359] [2022-07-22 01:04:44,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:44,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:44,410 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:04:44,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [931710183] [2022-07-22 01:04:44,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:44,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:44,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:44,419 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:04:44,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 01:04:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:44,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 01:04:44,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:04:44,947 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:04:44,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:04:45,074 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-22 01:04:45,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:45,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520514359] [2022-07-22 01:04:45,074 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:04:45,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931710183] [2022-07-22 01:04:45,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931710183] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:04:45,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:04:45,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2022-07-22 01:04:45,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892034844] [2022-07-22 01:04:45,075 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:04:45,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 01:04:45,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:45,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 01:04:45,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-07-22 01:04:45,076 INFO L87 Difference]: Start difference. First operand 2111 states and 2765 transitions. Second operand has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 10 states have internal predecessors, (128), 4 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-22 01:04:45,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:45,447 INFO L93 Difference]: Finished difference Result 3898 states and 5099 transitions. [2022-07-22 01:04:45,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 01:04:45,448 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 10 states have internal predecessors, (128), 4 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 74 [2022-07-22 01:04:45,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:45,462 INFO L225 Difference]: With dead ends: 3898 [2022-07-22 01:04:45,463 INFO L226 Difference]: Without dead ends: 3897 [2022-07-22 01:04:45,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=165, Unknown=0, NotChecked=0, Total=272 [2022-07-22 01:04:45,467 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1980 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:45,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1999 Valid, 1503 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 01:04:45,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3897 states. [2022-07-22 01:04:45,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3897 to 3631. [2022-07-22 01:04:45,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3631 states, 3384 states have (on average 1.2866430260047281) internal successors, (4354), 3407 states have internal predecessors, (4354), 184 states have call successors, (184), 60 states have call predecessors, (184), 50 states have return successors, (217), 164 states have call predecessors, (217), 184 states have call successors, (217) [2022-07-22 01:04:45,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3631 states to 3631 states and 4755 transitions. [2022-07-22 01:04:45,580 INFO L78 Accepts]: Start accepts. Automaton has 3631 states and 4755 transitions. Word has length 74 [2022-07-22 01:04:45,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:45,581 INFO L495 AbstractCegarLoop]: Abstraction has 3631 states and 4755 transitions. [2022-07-22 01:04:45,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 10 states have internal predecessors, (128), 4 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-22 01:04:45,582 INFO L276 IsEmpty]: Start isEmpty. Operand 3631 states and 4755 transitions. [2022-07-22 01:04:45,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 01:04:45,583 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:45,583 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-22 01:04:45,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-22 01:04:45,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-22 01:04:45,803 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:45,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:45,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1941077584, now seen corresponding path program 1 times [2022-07-22 01:04:45,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:45,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370534353] [2022-07-22 01:04:45,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:45,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:45,848 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:04:45,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1497251360] [2022-07-22 01:04:45,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:45,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:45,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:45,850 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:04:45,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-22 01:04:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:46,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-22 01:04:46,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:04:46,310 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-22 01:04:46,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:04:46,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:46,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370534353] [2022-07-22 01:04:46,310 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:04:46,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497251360] [2022-07-22 01:04:46,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497251360] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:04:46,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:04:46,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 01:04:46,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16461179] [2022-07-22 01:04:46,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:04:46,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 01:04:46,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:46,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 01:04:46,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 01:04:46,312 INFO L87 Difference]: Start difference. First operand 3631 states and 4755 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:04:46,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:46,475 INFO L93 Difference]: Finished difference Result 7201 states and 9443 transitions. [2022-07-22 01:04:46,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 01:04:46,476 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2022-07-22 01:04:46,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:46,485 INFO L225 Difference]: With dead ends: 7201 [2022-07-22 01:04:46,485 INFO L226 Difference]: Without dead ends: 3631 [2022-07-22 01:04:46,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-22 01:04:46,490 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 40 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:46,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 1796 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 01:04:46,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3631 states. [2022-07-22 01:04:46,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3631 to 3631. [2022-07-22 01:04:46,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3631 states, 3384 states have (on average 1.2863475177304964) internal successors, (4353), 3406 states have internal predecessors, (4353), 184 states have call successors, (184), 60 states have call predecessors, (184), 50 states have return successors, (217), 164 states have call predecessors, (217), 184 states have call successors, (217) [2022-07-22 01:04:46,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3631 states to 3631 states and 4754 transitions. [2022-07-22 01:04:46,614 INFO L78 Accepts]: Start accepts. Automaton has 3631 states and 4754 transitions. Word has length 96 [2022-07-22 01:04:46,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:46,615 INFO L495 AbstractCegarLoop]: Abstraction has 3631 states and 4754 transitions. [2022-07-22 01:04:46,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:04:46,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3631 states and 4754 transitions. [2022-07-22 01:04:46,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-22 01:04:46,616 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:46,616 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2022-07-22 01:04:46,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-22 01:04:46,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-22 01:04:46,835 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:46,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:46,836 INFO L85 PathProgramCache]: Analyzing trace with hash -660392027, now seen corresponding path program 1 times [2022-07-22 01:04:46,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:46,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234987430] [2022-07-22 01:04:46,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:46,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:46,870 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:04:46,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1621515994] [2022-07-22 01:04:46,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:46,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:46,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:46,889 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) [2022-07-22 01:04:46,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-22 01:04:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:47,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-22 01:04:47,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:04:47,397 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:04:47,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:04:47,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:47,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234987430] [2022-07-22 01:04:47,397 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:04:47,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621515994] [2022-07-22 01:04:47,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621515994] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:04:47,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:04:47,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 01:04:47,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619499900] [2022-07-22 01:04:47,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:04:47,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 01:04:47,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:47,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 01:04:47,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 01:04:47,398 INFO L87 Difference]: Start difference. First operand 3631 states and 4754 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-22 01:04:47,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:47,547 INFO L93 Difference]: Finished difference Result 5954 states and 7797 transitions. [2022-07-22 01:04:47,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 01:04:47,547 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 101 [2022-07-22 01:04:47,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:47,554 INFO L225 Difference]: With dead ends: 5954 [2022-07-22 01:04:47,554 INFO L226 Difference]: Without dead ends: 2365 [2022-07-22 01:04:47,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-07-22 01:04:47,558 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 31 mSDsluCounter, 2215 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:47,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 2538 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 01:04:47,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2022-07-22 01:04:47,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 2363. [2022-07-22 01:04:47,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2188 states have (on average 1.2829067641681902) internal successors, (2807), 2208 states have internal predecessors, (2807), 116 states have call successors, (116), 50 states have call predecessors, (116), 46 states have return successors, (128), 104 states have call predecessors, (128), 116 states have call successors, (128) [2022-07-22 01:04:47,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3051 transitions. [2022-07-22 01:04:47,608 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3051 transitions. Word has length 101 [2022-07-22 01:04:47,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:47,608 INFO L495 AbstractCegarLoop]: Abstraction has 2363 states and 3051 transitions. [2022-07-22 01:04:47,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-22 01:04:47,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3051 transitions. [2022-07-22 01:04:47,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-22 01:04:47,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:47,609 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-22 01:04:47,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-22 01:04:47,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-22 01:04:47,826 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:47,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:47,826 INFO L85 PathProgramCache]: Analyzing trace with hash 29743279, now seen corresponding path program 1 times [2022-07-22 01:04:47,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:47,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415130442] [2022-07-22 01:04:47,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:47,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:47,888 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:04:47,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [899846619] [2022-07-22 01:04:47,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:47,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:47,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:47,908 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:04:47,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-22 01:04:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:48,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-22 01:04:48,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:04:48,595 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 01:04:48,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:04:48,737 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 01:04:48,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:48,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415130442] [2022-07-22 01:04:48,737 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:04:48,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899846619] [2022-07-22 01:04:48,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899846619] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:04:48,738 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:04:48,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 14 [2022-07-22 01:04:48,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132727241] [2022-07-22 01:04:48,738 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:04:48,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 01:04:48,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:48,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 01:04:48,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-07-22 01:04:48,739 INFO L87 Difference]: Start difference. First operand 2363 states and 3051 transitions. Second operand has 14 states, 14 states have (on average 8.357142857142858) internal successors, (117), 14 states have internal predecessors, (117), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-22 01:04:49,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:49,074 INFO L93 Difference]: Finished difference Result 4766 states and 6192 transitions. [2022-07-22 01:04:49,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-22 01:04:49,075 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.357142857142858) internal successors, (117), 14 states have internal predecessors, (117), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 103 [2022-07-22 01:04:49,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:49,082 INFO L225 Difference]: With dead ends: 4766 [2022-07-22 01:04:49,082 INFO L226 Difference]: Without dead ends: 2454 [2022-07-22 01:04:49,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2022-07-22 01:04:49,085 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 52 mSDsluCounter, 3188 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3514 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:49,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 3514 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 01:04:49,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2454 states. [2022-07-22 01:04:49,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2454 to 2421. [2022-07-22 01:04:49,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2244 states have (on average 1.2883244206773619) internal successors, (2891), 2260 states have internal predecessors, (2891), 116 states have call successors, (116), 56 states have call predecessors, (116), 48 states have return successors, (124), 104 states have call predecessors, (124), 116 states have call successors, (124) [2022-07-22 01:04:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 3131 transitions. [2022-07-22 01:04:49,134 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 3131 transitions. Word has length 103 [2022-07-22 01:04:49,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:49,135 INFO L495 AbstractCegarLoop]: Abstraction has 2421 states and 3131 transitions. [2022-07-22 01:04:49,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.357142857142858) internal successors, (117), 14 states have internal predecessors, (117), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-22 01:04:49,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 3131 transitions. [2022-07-22 01:04:49,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-22 01:04:49,136 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:49,136 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-22 01:04:49,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-22 01:04:49,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-22 01:04:49,371 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-07-22 01:04:49,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:49,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1912556091, now seen corresponding path program 2 times [2022-07-22 01:04:49,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:49,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575304803] [2022-07-22 01:04:49,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:49,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:49,402 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:04:49,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1194174514] [2022-07-22 01:04:49,402 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 01:04:49,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:49,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:49,416 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:04:49,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process