./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 42d34b3801344b79b388ecea52b2e670196aa6b758fe24ea6ecf5c2b8bbf579b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 16:31:34,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 16:31:34,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 16:31:34,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 16:31:34,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 16:31:34,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 16:31:34,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 16:31:34,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 16:31:34,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 16:31:34,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 16:31:34,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 16:31:34,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 16:31:34,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 16:31:34,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 16:31:34,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 16:31:34,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 16:31:34,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 16:31:34,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 16:31:34,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 16:31:34,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 16:31:34,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 16:31:34,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 16:31:34,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 16:31:34,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 16:31:34,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 16:31:34,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 16:31:34,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 16:31:34,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 16:31:34,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 16:31:34,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 16:31:34,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 16:31:34,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 16:31:34,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 16:31:34,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 16:31:34,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 16:31:34,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 16:31:34,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 16:31:34,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 16:31:34,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 16:31:34,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 16:31:34,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 16:31:34,101 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-19 16:31:34,121 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 16:31:34,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 16:31:34,125 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 16:31:34,125 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 16:31:34,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-19 16:31:34,126 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-19 16:31:34,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 16:31:34,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 16:31:34,126 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 16:31:34,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 16:31:34,127 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 16:31:34,128 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 16:31:34,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 16:31:34,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 16:31:34,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 16:31:34,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-19 16:31:34,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-19 16:31:34,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-19 16:31:34,129 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-19 16:31:34,129 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 16:31:34,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 16:31:34,129 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 16:31:34,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-19 16:31:34,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 16:31:34,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 16:31:34,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-19 16:31:34,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 16:31:34,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 16:31:34,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-19 16:31:34,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-19 16:31:34,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 16:31:34,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-19 16:31:34,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-19 16:31:34,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 16:31:34,131 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42d34b3801344b79b388ecea52b2e670196aa6b758fe24ea6ecf5c2b8bbf579b [2021-12-19 16:31:34,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 16:31:34,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 16:31:34,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 16:31:34,322 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 16:31:34,323 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 16:31:34,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i [2021-12-19 16:31:34,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e4eabe57/a44eac9cbe8149109bc83cacaaa04aa3/FLAG7f669d601 [2021-12-19 16:31:34,768 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 16:31:34,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i [2021-12-19 16:31:34,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e4eabe57/a44eac9cbe8149109bc83cacaaa04aa3/FLAG7f669d601 [2021-12-19 16:31:35,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e4eabe57/a44eac9cbe8149109bc83cacaaa04aa3 [2021-12-19 16:31:35,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 16:31:35,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 16:31:35,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 16:31:35,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 16:31:35,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 16:31:35,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:31:35" (1/1) ... [2021-12-19 16:31:35,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb53cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:35, skipping insertion in model container [2021-12-19 16:31:35,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:31:35" (1/1) ... [2021-12-19 16:31:35,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 16:31:35,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 16:31:35,402 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_SAX_test8-2.i[33021,33034] [2021-12-19 16:31:35,489 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_SAX_test8-2.i[45234,45247] [2021-12-19 16:31:35,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 16:31:35,523 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 16:31:35,545 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_SAX_test8-2.i[33021,33034] [2021-12-19 16:31:35,580 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_SAX_test8-2.i[45234,45247] [2021-12-19 16:31:35,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 16:31:35,613 INFO L208 MainTranslator]: Completed translation [2021-12-19 16:31:35,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:35 WrapperNode [2021-12-19 16:31:35,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 16:31:35,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 16:31:35,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 16:31:35,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 16:31:35,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:35" (1/1) ... [2021-12-19 16:31:35,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:35" (1/1) ... [2021-12-19 16:31:35,686 INFO L137 Inliner]: procedures = 177, calls = 348, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1157 [2021-12-19 16:31:35,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 16:31:35,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 16:31:35,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 16:31:35,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 16:31:35,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:35" (1/1) ... [2021-12-19 16:31:35,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:35" (1/1) ... [2021-12-19 16:31:35,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:35" (1/1) ... [2021-12-19 16:31:35,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:35" (1/1) ... [2021-12-19 16:31:35,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:35" (1/1) ... [2021-12-19 16:31:35,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:35" (1/1) ... [2021-12-19 16:31:35,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:35" (1/1) ... [2021-12-19 16:31:35,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 16:31:35,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 16:31:35,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 16:31:35,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 16:31:35,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:35" (1/1) ... [2021-12-19 16:31:35,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 16:31:35,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:35,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-19 16:31:35,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-19 16:31:35,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-19 16:31:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-19 16:31:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-19 16:31:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-19 16:31:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-19 16:31:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-19 16:31:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-12-19 16:31:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-12-19 16:31:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-19 16:31:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 16:31:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-19 16:31:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-19 16:31:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-19 16:31:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-19 16:31:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-19 16:31:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 16:31:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 16:31:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 16:31:36,060 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 16:31:36,061 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 16:31:36,760 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 16:31:36,766 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 16:31:36,766 INFO L301 CfgBuilder]: Removed 71 assume(true) statements. [2021-12-19 16:31:36,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:31:36 BoogieIcfgContainer [2021-12-19 16:31:36,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 16:31:36,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-19 16:31:36,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-19 16:31:36,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-19 16:31:36,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:31:35" (1/3) ... [2021-12-19 16:31:36,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e50a399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:31:36, skipping insertion in model container [2021-12-19 16:31:36,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:35" (2/3) ... [2021-12-19 16:31:36,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e50a399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:31:36, skipping insertion in model container [2021-12-19 16:31:36,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:31:36" (3/3) ... [2021-12-19 16:31:36,777 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test8-2.i [2021-12-19 16:31:36,780 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-19 16:31:36,781 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-12-19 16:31:36,813 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-19 16:31:36,818 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-19 16:31:36,818 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-19 16:31:36,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 267 states, 235 states have (on average 1.702127659574468) internal successors, (400), 258 states have internal predecessors, (400), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-12-19 16:31:36,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-19 16:31:36,837 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:36,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:36,838 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:36,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:36,841 INFO L85 PathProgramCache]: Analyzing trace with hash 232940209, now seen corresponding path program 1 times [2021-12-19 16:31:36,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:36,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486366562] [2021-12-19 16:31:36,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:36,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:36,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:36,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:36,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486366562] [2021-12-19 16:31:36,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486366562] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:36,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:36,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 16:31:36,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153496619] [2021-12-19 16:31:36,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:36,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-19 16:31:36,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:37,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-19 16:31:37,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-19 16:31:37,008 INFO L87 Difference]: Start difference. First operand has 267 states, 235 states have (on average 1.702127659574468) internal successors, (400), 258 states have internal predecessors, (400), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:37,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:37,046 INFO L93 Difference]: Finished difference Result 532 states and 895 transitions. [2021-12-19 16:31:37,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-19 16:31:37,050 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-19 16:31:37,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:37,060 INFO L225 Difference]: With dead ends: 532 [2021-12-19 16:31:37,060 INFO L226 Difference]: Without dead ends: 234 [2021-12-19 16:31:37,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-19 16:31:37,072 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:37,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 16:31:37,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-12-19 16:31:37,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-12-19 16:31:37,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 203 states have (on average 1.374384236453202) internal successors, (279), 225 states have internal predecessors, (279), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-12-19 16:31:37,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 319 transitions. [2021-12-19 16:31:37,136 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 319 transitions. Word has length 7 [2021-12-19 16:31:37,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:37,136 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 319 transitions. [2021-12-19 16:31:37,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:37,137 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 319 transitions. [2021-12-19 16:31:37,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-19 16:31:37,137 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:37,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:37,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-19 16:31:37,137 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:37,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:37,138 INFO L85 PathProgramCache]: Analyzing trace with hash 232942131, now seen corresponding path program 1 times [2021-12-19 16:31:37,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:37,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648213399] [2021-12-19 16:31:37,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:37,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:37,164 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:37,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1060995251] [2021-12-19 16:31:37,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:37,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:37,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:37,176 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:37,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-19 16:31:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:37,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-19 16:31:37,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:37,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-19 16:31:37,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-19 16:31:37,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-12-19 16:31:37,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:37,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:31:37,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:37,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648213399] [2021-12-19 16:31:37,466 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:37,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060995251] [2021-12-19 16:31:37,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060995251] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:37,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:37,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 16:31:37,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973372776] [2021-12-19 16:31:37,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:37,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 16:31:37,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:37,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 16:31:37,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 16:31:37,472 INFO L87 Difference]: Start difference. First operand 234 states and 319 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:37,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:37,957 INFO L93 Difference]: Finished difference Result 362 states and 487 transitions. [2021-12-19 16:31:37,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 16:31:37,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-19 16:31:37,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:37,960 INFO L225 Difference]: With dead ends: 362 [2021-12-19 16:31:37,960 INFO L226 Difference]: Without dead ends: 360 [2021-12-19 16:31:37,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-19 16:31:37,961 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 197 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:37,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 1039 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-19 16:31:37,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-12-19 16:31:37,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 240. [2021-12-19 16:31:37,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 209 states have (on average 1.368421052631579) internal successors, (286), 231 states have internal predecessors, (286), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-12-19 16:31:37,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 326 transitions. [2021-12-19 16:31:37,976 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 326 transitions. Word has length 7 [2021-12-19 16:31:37,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:37,976 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 326 transitions. [2021-12-19 16:31:37,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:37,976 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 326 transitions. [2021-12-19 16:31:37,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-19 16:31:37,978 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:37,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:37,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-19 16:31:38,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:38,199 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:38,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:38,199 INFO L85 PathProgramCache]: Analyzing trace with hash 924007304, now seen corresponding path program 1 times [2021-12-19 16:31:38,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:38,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733941237] [2021-12-19 16:31:38,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:38,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:38,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:38,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:38,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733941237] [2021-12-19 16:31:38,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733941237] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:38,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:38,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 16:31:38,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637032827] [2021-12-19 16:31:38,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:38,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 16:31:38,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:38,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 16:31:38,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 16:31:38,276 INFO L87 Difference]: Start difference. First operand 240 states and 326 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:38,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:38,472 INFO L93 Difference]: Finished difference Result 448 states and 615 transitions. [2021-12-19 16:31:38,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 16:31:38,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-12-19 16:31:38,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:38,475 INFO L225 Difference]: With dead ends: 448 [2021-12-19 16:31:38,475 INFO L226 Difference]: Without dead ends: 319 [2021-12-19 16:31:38,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 16:31:38,477 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 100 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:38,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 855 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-19 16:31:38,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-12-19 16:31:38,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 240. [2021-12-19 16:31:38,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 209 states have (on average 1.3636363636363635) internal successors, (285), 231 states have internal predecessors, (285), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-12-19 16:31:38,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 325 transitions. [2021-12-19 16:31:38,486 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 325 transitions. Word has length 51 [2021-12-19 16:31:38,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:38,487 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 325 transitions. [2021-12-19 16:31:38,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:38,487 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 325 transitions. [2021-12-19 16:31:38,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-19 16:31:38,488 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:38,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:38,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-19 16:31:38,488 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:38,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:38,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1685087362, now seen corresponding path program 1 times [2021-12-19 16:31:38,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:38,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91392827] [2021-12-19 16:31:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:38,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:38,549 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:38,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [627975344] [2021-12-19 16:31:38,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:38,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:38,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:38,551 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:38,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-19 16:31:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:38,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 1551 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 16:31:38,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:39,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:39,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:31:39,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:39,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91392827] [2021-12-19 16:31:39,057 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:39,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627975344] [2021-12-19 16:31:39,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627975344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:39,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:39,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 16:31:39,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007504746] [2021-12-19 16:31:39,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:39,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 16:31:39,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:39,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 16:31:39,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 16:31:39,060 INFO L87 Difference]: Start difference. First operand 240 states and 325 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:39,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:39,109 INFO L93 Difference]: Finished difference Result 493 states and 673 transitions. [2021-12-19 16:31:39,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 16:31:39,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-12-19 16:31:39,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:39,111 INFO L225 Difference]: With dead ends: 493 [2021-12-19 16:31:39,111 INFO L226 Difference]: Without dead ends: 261 [2021-12-19 16:31:39,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 16:31:39,112 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 10 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:39,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 583 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 16:31:39,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-12-19 16:31:39,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 260. [2021-12-19 16:31:39,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 229 states have (on average 1.331877729257642) internal successors, (305), 251 states have internal predecessors, (305), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-12-19 16:31:39,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 345 transitions. [2021-12-19 16:31:39,121 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 345 transitions. Word has length 59 [2021-12-19 16:31:39,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:39,122 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 345 transitions. [2021-12-19 16:31:39,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:39,122 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 345 transitions. [2021-12-19 16:31:39,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-19 16:31:39,123 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:39,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:39,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-19 16:31:39,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-19 16:31:39,344 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:39,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:39,344 INFO L85 PathProgramCache]: Analyzing trace with hash -622531706, now seen corresponding path program 1 times [2021-12-19 16:31:39,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:39,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032398434] [2021-12-19 16:31:39,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:39,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:39,420 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:39,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [471001568] [2021-12-19 16:31:39,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:39,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:39,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:39,422 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:39,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-19 16:31:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:39,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 1555 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 16:31:39,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:39,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:39,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:31:39,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:39,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032398434] [2021-12-19 16:31:39,959 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:39,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471001568] [2021-12-19 16:31:39,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471001568] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:39,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:39,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 16:31:39,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110891212] [2021-12-19 16:31:39,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:39,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 16:31:39,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:39,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 16:31:39,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 16:31:39,961 INFO L87 Difference]: Start difference. First operand 260 states and 345 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:40,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:40,021 INFO L93 Difference]: Finished difference Result 502 states and 672 transitions. [2021-12-19 16:31:40,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 16:31:40,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-12-19 16:31:40,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:40,022 INFO L225 Difference]: With dead ends: 502 [2021-12-19 16:31:40,022 INFO L226 Difference]: Without dead ends: 250 [2021-12-19 16:31:40,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 16:31:40,024 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 223 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:40,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 679 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 16:31:40,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-12-19 16:31:40,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 246. [2021-12-19 16:31:40,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 215 states have (on average 1.3209302325581396) internal successors, (284), 237 states have internal predecessors, (284), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-12-19 16:31:40,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 324 transitions. [2021-12-19 16:31:40,030 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 324 transitions. Word has length 59 [2021-12-19 16:31:40,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:40,031 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 324 transitions. [2021-12-19 16:31:40,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:40,031 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 324 transitions. [2021-12-19 16:31:40,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-19 16:31:40,032 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:40,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:40,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-19 16:31:40,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:40,248 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:40,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:40,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1240049736, now seen corresponding path program 1 times [2021-12-19 16:31:40,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:40,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400018328] [2021-12-19 16:31:40,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:40,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:40,320 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:40,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1141339065] [2021-12-19 16:31:40,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:40,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:40,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:40,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:40,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-19 16:31:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:40,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 1541 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 16:31:40,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:40,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:40,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:31:40,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:40,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400018328] [2021-12-19 16:31:40,948 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:40,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141339065] [2021-12-19 16:31:40,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141339065] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:40,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:40,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 16:31:40,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256702057] [2021-12-19 16:31:40,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:40,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 16:31:40,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:40,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 16:31:40,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 16:31:40,950 INFO L87 Difference]: Start difference. First operand 246 states and 324 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:40,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:40,992 INFO L93 Difference]: Finished difference Result 377 states and 506 transitions. [2021-12-19 16:31:40,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 16:31:40,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-12-19 16:31:40,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:40,998 INFO L225 Difference]: With dead ends: 377 [2021-12-19 16:31:40,998 INFO L226 Difference]: Without dead ends: 376 [2021-12-19 16:31:40,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 16:31:41,000 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 95 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:41,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 919 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 16:31:41,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-12-19 16:31:41,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 343. [2021-12-19 16:31:41,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 307 states have (on average 1.283387622149837) internal successors, (394), 329 states have internal predecessors, (394), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (24), 9 states have call predecessors, (24), 24 states have call successors, (24) [2021-12-19 16:31:41,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 442 transitions. [2021-12-19 16:31:41,013 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 442 transitions. Word has length 59 [2021-12-19 16:31:41,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:41,013 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 442 transitions. [2021-12-19 16:31:41,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:41,014 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 442 transitions. [2021-12-19 16:31:41,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-19 16:31:41,017 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:41,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:41,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-19 16:31:41,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:41,232 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:41,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:41,232 INFO L85 PathProgramCache]: Analyzing trace with hash 213163890, now seen corresponding path program 1 times [2021-12-19 16:31:41,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:41,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509221154] [2021-12-19 16:31:41,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:41,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:41,281 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:41,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1707395517] [2021-12-19 16:31:41,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:41,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:41,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:41,282 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:41,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-19 16:31:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:41,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 16:31:41,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:41,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:41,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:31:41,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:41,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509221154] [2021-12-19 16:31:41,962 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:41,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707395517] [2021-12-19 16:31:41,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707395517] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:41,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:41,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 16:31:41,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115849799] [2021-12-19 16:31:41,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:41,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 16:31:41,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:41,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 16:31:41,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 16:31:41,964 INFO L87 Difference]: Start difference. First operand 343 states and 442 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:42,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:42,030 INFO L93 Difference]: Finished difference Result 343 states and 442 transitions. [2021-12-19 16:31:42,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 16:31:42,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-12-19 16:31:42,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:42,033 INFO L225 Difference]: With dead ends: 343 [2021-12-19 16:31:42,033 INFO L226 Difference]: Without dead ends: 342 [2021-12-19 16:31:42,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 16:31:42,034 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 269 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:42,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 539 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 16:31:42,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-12-19 16:31:42,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-12-19 16:31:42,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 307 states have (on average 1.280130293159609) internal successors, (393), 328 states have internal predecessors, (393), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (24), 9 states have call predecessors, (24), 24 states have call successors, (24) [2021-12-19 16:31:42,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 441 transitions. [2021-12-19 16:31:42,047 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 441 transitions. Word has length 60 [2021-12-19 16:31:42,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:42,047 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 441 transitions. [2021-12-19 16:31:42,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:42,048 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 441 transitions. [2021-12-19 16:31:42,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-19 16:31:42,049 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:42,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:42,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-19 16:31:42,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:42,263 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:42,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:42,264 INFO L85 PathProgramCache]: Analyzing trace with hash 56443402, now seen corresponding path program 1 times [2021-12-19 16:31:42,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:42,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704700634] [2021-12-19 16:31:42,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:42,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:42,313 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:42,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1708108458] [2021-12-19 16:31:42,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:42,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:42,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:42,314 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:42,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-19 16:31:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:42,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 16:31:42,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:43,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:43,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:31:43,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:43,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704700634] [2021-12-19 16:31:43,166 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:43,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708108458] [2021-12-19 16:31:43,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708108458] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:43,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:43,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 16:31:43,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730042809] [2021-12-19 16:31:43,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:43,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 16:31:43,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:43,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 16:31:43,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 16:31:43,168 INFO L87 Difference]: Start difference. First operand 342 states and 441 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-19 16:31:43,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:43,226 INFO L93 Difference]: Finished difference Result 692 states and 904 transitions. [2021-12-19 16:31:43,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 16:31:43,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 72 [2021-12-19 16:31:43,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:43,228 INFO L225 Difference]: With dead ends: 692 [2021-12-19 16:31:43,228 INFO L226 Difference]: Without dead ends: 409 [2021-12-19 16:31:43,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 16:31:43,229 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 100 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:43,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 636 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 16:31:43,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2021-12-19 16:31:43,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 406. [2021-12-19 16:31:43,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 370 states have (on average 1.2891891891891891) internal successors, (477), 391 states have internal predecessors, (477), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (25), 10 states have call predecessors, (25), 25 states have call successors, (25) [2021-12-19 16:31:43,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 527 transitions. [2021-12-19 16:31:43,239 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 527 transitions. Word has length 72 [2021-12-19 16:31:43,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:43,239 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 527 transitions. [2021-12-19 16:31:43,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-19 16:31:43,240 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 527 transitions. [2021-12-19 16:31:43,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-19 16:31:43,240 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:43,241 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:43,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-19 16:31:43,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:43,446 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:43,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:43,447 INFO L85 PathProgramCache]: Analyzing trace with hash -865861414, now seen corresponding path program 1 times [2021-12-19 16:31:43,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:43,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451786420] [2021-12-19 16:31:43,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:43,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:43,476 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:43,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [652145415] [2021-12-19 16:31:43,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:43,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:43,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:43,478 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:43,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-19 16:31:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:44,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-19 16:31:44,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:44,136 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-19 16:31:44,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:31:44,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:44,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451786420] [2021-12-19 16:31:44,137 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:44,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652145415] [2021-12-19 16:31:44,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652145415] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:44,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:44,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 16:31:44,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587429880] [2021-12-19 16:31:44,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:44,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 16:31:44,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:44,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 16:31:44,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 16:31:44,139 INFO L87 Difference]: Start difference. First operand 406 states and 527 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-19 16:31:44,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:44,164 INFO L93 Difference]: Finished difference Result 765 states and 1007 transitions. [2021-12-19 16:31:44,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 16:31:44,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 87 [2021-12-19 16:31:44,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:44,166 INFO L225 Difference]: With dead ends: 765 [2021-12-19 16:31:44,166 INFO L226 Difference]: Without dead ends: 412 [2021-12-19 16:31:44,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 16:31:44,167 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 2 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:44,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 920 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 16:31:44,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-12-19 16:31:44,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2021-12-19 16:31:44,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 374 states have (on average 1.2914438502673797) internal successors, (483), 397 states have internal predecessors, (483), 25 states have call successors, (25), 5 states have call predecessors, (25), 6 states have return successors, (27), 10 states have call predecessors, (27), 25 states have call successors, (27) [2021-12-19 16:31:44,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 535 transitions. [2021-12-19 16:31:44,178 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 535 transitions. Word has length 87 [2021-12-19 16:31:44,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:44,178 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 535 transitions. [2021-12-19 16:31:44,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-19 16:31:44,178 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 535 transitions. [2021-12-19 16:31:44,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-19 16:31:44,179 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:44,179 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:44,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-19 16:31:44,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:44,395 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:44,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:44,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1245758072, now seen corresponding path program 1 times [2021-12-19 16:31:44,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:44,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256289210] [2021-12-19 16:31:44,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:44,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:44,431 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:44,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [815965428] [2021-12-19 16:31:44,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:44,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:44,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:44,433 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:44,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-19 16:31:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:45,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-19 16:31:45,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:45,393 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-19 16:31:45,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 16:31:45,562 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-19 16:31:45,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:45,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256289210] [2021-12-19 16:31:45,563 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:45,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815965428] [2021-12-19 16:31:45,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815965428] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 16:31:45,563 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 16:31:45,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-19 16:31:45,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662126986] [2021-12-19 16:31:45,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 16:31:45,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-19 16:31:45,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:45,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-19 16:31:45,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-19 16:31:45,567 INFO L87 Difference]: Start difference. First operand 412 states and 535 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-19 16:31:45,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:45,692 INFO L93 Difference]: Finished difference Result 793 states and 1051 transitions. [2021-12-19 16:31:45,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-19 16:31:45,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2021-12-19 16:31:45,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:45,695 INFO L225 Difference]: With dead ends: 793 [2021-12-19 16:31:45,695 INFO L226 Difference]: Without dead ends: 430 [2021-12-19 16:31:45,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-12-19 16:31:45,696 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 22 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:45,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 1521 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 16:31:45,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-12-19 16:31:45,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2021-12-19 16:31:45,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 390 states have (on average 1.3) internal successors, (507), 413 states have internal predecessors, (507), 25 states have call successors, (25), 7 states have call predecessors, (25), 8 states have return successors, (29), 10 states have call predecessors, (29), 25 states have call successors, (29) [2021-12-19 16:31:45,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 561 transitions. [2021-12-19 16:31:45,709 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 561 transitions. Word has length 89 [2021-12-19 16:31:45,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:45,710 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 561 transitions. [2021-12-19 16:31:45,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-19 16:31:45,711 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 561 transitions. [2021-12-19 16:31:45,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-19 16:31:45,712 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:45,712 INFO L514 BasicCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:45,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-19 16:31:45,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-19 16:31:45,928 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:45,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:45,928 INFO L85 PathProgramCache]: Analyzing trace with hash 213616922, now seen corresponding path program 2 times [2021-12-19 16:31:45,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:45,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425371643] [2021-12-19 16:31:45,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:45,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:45,963 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:45,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908559252] [2021-12-19 16:31:45,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 16:31:45,964 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:45,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:45,965 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:45,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-19 16:31:48,394 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-19 16:31:48,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 16:31:48,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 25 conjunts are in the unsatisfiable core [2021-12-19 16:31:48,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:48,556 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-19 16:31:48,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 16:31:48,791 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-19 16:31:48,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:48,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425371643] [2021-12-19 16:31:48,791 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:48,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908559252] [2021-12-19 16:31:48,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908559252] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 16:31:48,791 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 16:31:48,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-12-19 16:31:48,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641109323] [2021-12-19 16:31:48,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 16:31:48,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-19 16:31:48,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:48,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-19 16:31:48,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-12-19 16:31:48,793 INFO L87 Difference]: Start difference. First operand 430 states and 561 transitions. Second operand has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-19 16:31:49,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:49,015 INFO L93 Difference]: Finished difference Result 859 states and 1131 transitions. [2021-12-19 16:31:49,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-19 16:31:49,015 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 93 [2021-12-19 16:31:49,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:49,017 INFO L225 Difference]: With dead ends: 859 [2021-12-19 16:31:49,017 INFO L226 Difference]: Without dead ends: 436 [2021-12-19 16:31:49,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2021-12-19 16:31:49,019 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 241 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2165 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:49,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2165 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 16:31:49,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2021-12-19 16:31:49,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 432. [2021-12-19 16:31:49,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 392 states have (on average 1.3035714285714286) internal successors, (511), 415 states have internal predecessors, (511), 25 states have call successors, (25), 7 states have call predecessors, (25), 8 states have return successors, (27), 10 states have call predecessors, (27), 25 states have call successors, (27) [2021-12-19 16:31:49,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 563 transitions. [2021-12-19 16:31:49,029 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 563 transitions. Word has length 93 [2021-12-19 16:31:49,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:49,030 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 563 transitions. [2021-12-19 16:31:49,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 11 states have internal predecessors, (102), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-19 16:31:49,030 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 563 transitions. [2021-12-19 16:31:49,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-19 16:31:49,031 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:49,031 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:49,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-19 16:31:49,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:49,251 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:49,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:49,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1701512806, now seen corresponding path program 3 times [2021-12-19 16:31:49,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:49,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501045387] [2021-12-19 16:31:49,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:49,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:49,284 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:49,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [600935871] [2021-12-19 16:31:49,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-19 16:31:49,284 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:49,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:49,285 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:49,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-19 16:37:15,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-19 16:37:15,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 16:37:15,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-19 16:37:15,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:37:16,074 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 37 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-19 16:37:16,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 16:37:16,271 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 37 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-19 16:37:16,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:37:16,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501045387] [2021-12-19 16:37:16,271 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:37:16,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600935871] [2021-12-19 16:37:16,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600935871] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 16:37:16,271 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 16:37:16,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-12-19 16:37:16,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096634695] [2021-12-19 16:37:16,272 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 16:37:16,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-19 16:37:16,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:37:16,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-19 16:37:16,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-12-19 16:37:16,273 INFO L87 Difference]: Start difference. First operand 432 states and 563 transitions. Second operand has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-19 16:37:16,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:37:16,763 INFO L93 Difference]: Finished difference Result 833 states and 1097 transitions. [2021-12-19 16:37:16,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-19 16:37:16,764 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 97 [2021-12-19 16:37:16,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:37:16,766 INFO L225 Difference]: With dead ends: 833 [2021-12-19 16:37:16,766 INFO L226 Difference]: Without dead ends: 456 [2021-12-19 16:37:16,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=227, Invalid=423, Unknown=0, NotChecked=0, Total=650 [2021-12-19 16:37:16,767 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 54 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 16:37:16,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 1820 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 16:37:16,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-12-19 16:37:16,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 444. [2021-12-19 16:37:16,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 404 states have (on average 1.3143564356435644) internal successors, (531), 427 states have internal predecessors, (531), 25 states have call successors, (25), 7 states have call predecessors, (25), 8 states have return successors, (27), 10 states have call predecessors, (27), 25 states have call successors, (27) [2021-12-19 16:37:16,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 583 transitions. [2021-12-19 16:37:16,778 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 583 transitions. Word has length 97 [2021-12-19 16:37:16,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:37:16,779 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 583 transitions. [2021-12-19 16:37:16,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-19 16:37:16,779 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 583 transitions. [2021-12-19 16:37:16,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-19 16:37:16,780 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:37:16,780 INFO L514 BasicCegarLoop]: trace histogram [16, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:37:16,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-19 16:37:16,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-19 16:37:16,995 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:37:16,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:37:16,996 INFO L85 PathProgramCache]: Analyzing trace with hash 82656666, now seen corresponding path program 4 times [2021-12-19 16:37:16,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:37:16,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758015519] [2021-12-19 16:37:16,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:37:16,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:37:17,041 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:37:17,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [84921066] [2021-12-19 16:37:17,042 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-19 16:37:17,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:37:17,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:37:17,043 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:37:17,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-19 16:37:17,921 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-19 16:37:17,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 16:37:17,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 33 conjunts are in the unsatisfiable core [2021-12-19 16:37:17,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:37:18,081 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 80 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-19 16:37:18,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 16:37:18,458 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-12-19 16:37:18,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:37:18,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758015519] [2021-12-19 16:37:18,459 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:37:18,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84921066] [2021-12-19 16:37:18,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84921066] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 16:37:18,459 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 16:37:18,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-12-19 16:37:18,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057997561] [2021-12-19 16:37:18,459 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 16:37:18,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-19 16:37:18,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:37:18,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-19 16:37:18,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-12-19 16:37:18,460 INFO L87 Difference]: Start difference. First operand 444 states and 583 transitions. Second operand has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-19 16:37:20,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:37:20,942 INFO L93 Difference]: Finished difference Result 872 states and 1159 transitions. [2021-12-19 16:37:20,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-19 16:37:20,942 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 103 [2021-12-19 16:37:20,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:37:20,944 INFO L225 Difference]: With dead ends: 872 [2021-12-19 16:37:20,944 INFO L226 Difference]: Without dead ends: 476 [2021-12-19 16:37:20,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=369, Invalid=687, Unknown=0, NotChecked=0, Total=1056 [2021-12-19 16:37:20,945 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 84 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-19 16:37:20,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 2734 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-19 16:37:20,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-12-19 16:37:20,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 460. [2021-12-19 16:37:20,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 420 states have (on average 1.2976190476190477) internal successors, (545), 443 states have internal predecessors, (545), 25 states have call successors, (25), 7 states have call predecessors, (25), 8 states have return successors, (27), 10 states have call predecessors, (27), 25 states have call successors, (27) [2021-12-19 16:37:20,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 597 transitions. [2021-12-19 16:37:20,956 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 597 transitions. Word has length 103 [2021-12-19 16:37:20,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:37:20,956 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 597 transitions. [2021-12-19 16:37:20,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.0) internal successors, (108), 18 states have internal predecessors, (108), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-19 16:37:20,957 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 597 transitions. [2021-12-19 16:37:20,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-19 16:37:20,957 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:37:20,958 INFO L514 BasicCegarLoop]: trace histogram [24, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:37:20,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-19 16:37:21,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-19 16:37:21,171 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:37:21,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:37:21,172 INFO L85 PathProgramCache]: Analyzing trace with hash 576626330, now seen corresponding path program 5 times [2021-12-19 16:37:21,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:37:21,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381005660] [2021-12-19 16:37:21,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:37:21,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:37:21,209 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:37:21,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707654548] [2021-12-19 16:37:21,210 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-19 16:37:21,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:37:21,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:37:21,211 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:37:21,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process Killed by 15