./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.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_SFH_test8-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e63083161b3199c06a87ea66924e1f63d6865962e6a830baf344139b270d928 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 16:43:32,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 16:43:32,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 16:43:32,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 16:43:32,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 16:43:32,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 16:43:32,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 16:43:32,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 16:43:32,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 16:43:32,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 16:43:32,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 16:43:32,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 16:43:32,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 16:43:32,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 16:43:32,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 16:43:32,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 16:43:32,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 16:43:32,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 16:43:32,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 16:43:32,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 16:43:32,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 16:43:32,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 16:43:32,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 16:43:32,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 16:43:32,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 16:43:32,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 16:43:32,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 16:43:32,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 16:43:32,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 16:43:32,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 16:43:32,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 16:43:32,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 16:43:32,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 16:43:32,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 16:43:32,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 16:43:32,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 16:43:32,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 16:43:32,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 16:43:32,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 16:43:32,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 16:43:32,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 16:43:32,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-19 16:43:32,620 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 16:43:32,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 16:43:32,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 16:43:32,621 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 16:43:32,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-19 16:43:32,622 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-19 16:43:32,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 16:43:32,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 16:43:32,623 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 16:43:32,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 16:43:32,623 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 16:43:32,624 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 16:43:32,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 16:43:32,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 16:43:32,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 16:43:32,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-19 16:43:32,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-19 16:43:32,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-19 16:43:32,625 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-19 16:43:32,625 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 16:43:32,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 16:43:32,625 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 16:43:32,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-19 16:43:32,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 16:43:32,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 16:43:32,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-19 16:43:32,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 16:43:32,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 16:43:32,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-19 16:43:32,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-19 16:43:32,627 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 16:43:32,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-19 16:43:32,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-19 16:43:32,628 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 16:43:32,628 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e63083161b3199c06a87ea66924e1f63d6865962e6a830baf344139b270d928 [2021-12-19 16:43:32,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 16:43:32,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 16:43:32,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 16:43:32,841 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 16:43:32,842 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 16:43:32,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i [2021-12-19 16:43:32,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b28f2046/77968d27206e441eb78a97cac52de2fc/FLAG594abb3c3 [2021-12-19 16:43:33,376 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 16:43:33,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-1.i [2021-12-19 16:43:33,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b28f2046/77968d27206e441eb78a97cac52de2fc/FLAG594abb3c3 [2021-12-19 16:43:33,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b28f2046/77968d27206e441eb78a97cac52de2fc [2021-12-19 16:43:33,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 16:43:33,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 16:43:33,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 16:43:33,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 16:43:33,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 16:43:33,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:43:33" (1/1) ... [2021-12-19 16:43:33,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13b7bb7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:33, skipping insertion in model container [2021-12-19 16:43:33,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:43:33" (1/1) ... [2021-12-19 16:43:33,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 16:43:33,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 16:43:33,746 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_SFH_test8-1.i[33021,33034] [2021-12-19 16:43:33,843 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_SFH_test8-1.i[45234,45247] [2021-12-19 16:43:33,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 16:43:33,860 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 16:43:33,882 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_SFH_test8-1.i[33021,33034] [2021-12-19 16:43:33,939 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_SFH_test8-1.i[45234,45247] [2021-12-19 16:43:33,942 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 16:43:33,965 INFO L208 MainTranslator]: Completed translation [2021-12-19 16:43:33,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:33 WrapperNode [2021-12-19 16:43:33,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 16:43:33,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 16:43:33,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 16:43:33,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 16:43:33,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:33" (1/1) ... [2021-12-19 16:43:34,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:33" (1/1) ... [2021-12-19 16:43:34,074 INFO L137 Inliner]: procedures = 177, calls = 297, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1002 [2021-12-19 16:43:34,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 16:43:34,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 16:43:34,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 16:43:34,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 16:43:34,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:33" (1/1) ... [2021-12-19 16:43:34,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:33" (1/1) ... [2021-12-19 16:43:34,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:33" (1/1) ... [2021-12-19 16:43:34,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:33" (1/1) ... [2021-12-19 16:43:34,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:33" (1/1) ... [2021-12-19 16:43:34,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:33" (1/1) ... [2021-12-19 16:43:34,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:33" (1/1) ... [2021-12-19 16:43:34,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 16:43:34,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 16:43:34,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 16:43:34,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 16:43:34,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:33" (1/1) ... [2021-12-19 16:43:34,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 16:43:34,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:43:34,225 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 16:43:34,244 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 16:43:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-19 16:43:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-19 16:43:34,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-19 16:43:34,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-19 16:43:34,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-19 16:43:34,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-19 16:43:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-12-19 16:43:34,261 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-12-19 16:43:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-19 16:43:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 16:43:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-19 16:43:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-19 16:43:34,262 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-19 16:43:34,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-19 16:43:34,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-19 16:43:34,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 16:43:34,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 16:43:34,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 16:43:34,457 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 16:43:34,458 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 16:43:35,092 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 16:43:35,102 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 16:43:35,102 INFO L301 CfgBuilder]: Removed 62 assume(true) statements. [2021-12-19 16:43:35,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:43:35 BoogieIcfgContainer [2021-12-19 16:43:35,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 16:43:35,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-19 16:43:35,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-19 16:43:35,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-19 16:43:35,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:43:33" (1/3) ... [2021-12-19 16:43:35,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec7330b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:43:35, skipping insertion in model container [2021-12-19 16:43:35,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:33" (2/3) ... [2021-12-19 16:43:35,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec7330b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:43:35, skipping insertion in model container [2021-12-19 16:43:35,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:43:35" (3/3) ... [2021-12-19 16:43:35,113 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test8-1.i [2021-12-19 16:43:35,116 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-19 16:43:35,116 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-12-19 16:43:35,157 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-19 16:43:35,163 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 16:43:35,163 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-19 16:43:35,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 238 states, 206 states have (on average 1.703883495145631) internal successors, (351), 229 states have internal predecessors, (351), 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 16:43:35,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-19 16:43:35,178 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:43:35,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:43:35,179 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 16:43:35,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:43:35,183 INFO L85 PathProgramCache]: Analyzing trace with hash 232940209, now seen corresponding path program 1 times [2021-12-19 16:43:35,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:43:35,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549578178] [2021-12-19 16:43:35,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:35,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:43:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:43:35,318 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 16:43:35,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:43:35,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549578178] [2021-12-19 16:43:35,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549578178] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:43:35,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:43:35,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 16:43:35,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258617871] [2021-12-19 16:43:35,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:43:35,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-19 16:43:35,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:43:35,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-19 16:43:35,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-19 16:43:35,349 INFO L87 Difference]: Start difference. First operand has 238 states, 206 states have (on average 1.703883495145631) internal successors, (351), 229 states have internal predecessors, (351), 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 16:43:35,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:43:35,396 INFO L93 Difference]: Finished difference Result 474 states and 797 transitions. [2021-12-19 16:43:35,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-19 16:43:35,397 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 16:43:35,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:43:35,406 INFO L225 Difference]: With dead ends: 474 [2021-12-19 16:43:35,406 INFO L226 Difference]: Without dead ends: 234 [2021-12-19 16:43:35,409 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 16:43:35,411 INFO L933 BasicCegarLoop]: 323 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, 323 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 16:43:35,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 16:43:35,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-12-19 16:43:35,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-12-19 16:43:35,458 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 16:43:35,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 319 transitions. [2021-12-19 16:43:35,462 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 319 transitions. Word has length 7 [2021-12-19 16:43:35,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:43:35,463 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 319 transitions. [2021-12-19 16:43:35,463 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 16:43:35,463 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 319 transitions. [2021-12-19 16:43:35,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-19 16:43:35,463 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:43:35,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:43:35,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-19 16:43:35,464 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 16:43:35,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:43:35,465 INFO L85 PathProgramCache]: Analyzing trace with hash 232942131, now seen corresponding path program 1 times [2021-12-19 16:43:35,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:43:35,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884504921] [2021-12-19 16:43:35,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:35,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:43:35,486 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:43:35,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [677162070] [2021-12-19 16:43:35,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:35,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:43:35,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:43:35,489 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 16:43:35,490 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 16:43:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:43:35,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-19 16:43:35,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:43:35,679 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 16:43:35,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-19 16:43:35,780 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 16:43:35,789 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 16:43:35,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:43:35,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:43:35,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884504921] [2021-12-19 16:43:35,792 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:43:35,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677162070] [2021-12-19 16:43:35,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677162070] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:43:35,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:43:35,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 16:43:35,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388619162] [2021-12-19 16:43:35,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:43:35,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 16:43:35,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:43:35,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 16:43:35,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 16:43:35,796 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 16:43:36,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:43:36,328 INFO L93 Difference]: Finished difference Result 362 states and 487 transitions. [2021-12-19 16:43:36,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 16:43:36,328 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 16:43:36,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:43:36,330 INFO L225 Difference]: With dead ends: 362 [2021-12-19 16:43:36,330 INFO L226 Difference]: Without dead ends: 360 [2021-12-19 16:43:36,331 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 16:43:36,332 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, 0.5s IncrementalHoareTripleChecker+Time [2021-12-19 16:43:36,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 1039 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-19 16:43:36,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-12-19 16:43:36,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 240. [2021-12-19 16:43:36,348 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 16:43:36,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 326 transitions. [2021-12-19 16:43:36,353 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 326 transitions. Word has length 7 [2021-12-19 16:43:36,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:43:36,353 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 326 transitions. [2021-12-19 16:43:36,353 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 16:43:36,354 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 326 transitions. [2021-12-19 16:43:36,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-19 16:43:36,356 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:43:36,356 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 16:43:36,375 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 16:43:36,564 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 16:43:36,564 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 16:43:36,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:43:36,565 INFO L85 PathProgramCache]: Analyzing trace with hash 923887179, now seen corresponding path program 1 times [2021-12-19 16:43:36,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:43:36,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649708687] [2021-12-19 16:43:36,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:36,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:43:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:43:36,643 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 16:43:36,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:43:36,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649708687] [2021-12-19 16:43:36,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649708687] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:43:36,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:43:36,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 16:43:36,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88499329] [2021-12-19 16:43:36,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:43:36,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 16:43:36,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:43:36,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 16:43:36,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 16:43:36,648 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 16:43:37,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:43:37,712 INFO L93 Difference]: Finished difference Result 448 states and 615 transitions. [2021-12-19 16:43:37,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 16:43:37,713 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 16:43:37,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:43:37,714 INFO L225 Difference]: With dead ends: 448 [2021-12-19 16:43:37,714 INFO L226 Difference]: Without dead ends: 319 [2021-12-19 16:43:37,715 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 16:43:37,715 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 100 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-19 16:43:37,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 843 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-19 16:43:37,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-12-19 16:43:37,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 240. [2021-12-19 16:43:37,723 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 16:43:37,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 325 transitions. [2021-12-19 16:43:37,724 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 325 transitions. Word has length 51 [2021-12-19 16:43:37,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:43:37,725 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 325 transitions. [2021-12-19 16:43:37,725 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 16:43:37,725 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 325 transitions. [2021-12-19 16:43:37,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-19 16:43:37,726 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:43:37,726 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 16:43:37,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-19 16:43:37,727 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 16:43:37,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:43:37,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1684967237, now seen corresponding path program 1 times [2021-12-19 16:43:37,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:43:37,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799731897] [2021-12-19 16:43:37,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:37,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:43:37,797 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:43:37,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314471498] [2021-12-19 16:43:37,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:37,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:43:37,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:43:37,799 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 16:43:37,836 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 16:43:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:43:38,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 1551 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 16:43:38,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:43:38,299 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 16:43:38,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:43:38,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:43:38,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799731897] [2021-12-19 16:43:38,300 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:43:38,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314471498] [2021-12-19 16:43:38,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314471498] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:43:38,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:43:38,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 16:43:38,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893438912] [2021-12-19 16:43:38,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:43:38,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 16:43:38,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:43:38,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 16:43:38,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 16:43:38,302 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 16:43:38,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:43:38,351 INFO L93 Difference]: Finished difference Result 493 states and 673 transitions. [2021-12-19 16:43:38,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 16:43:38,351 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 16:43:38,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:43:38,353 INFO L225 Difference]: With dead ends: 493 [2021-12-19 16:43:38,353 INFO L226 Difference]: Without dead ends: 261 [2021-12-19 16:43:38,354 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 16:43:38,354 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 16:43:38,355 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 16:43:38,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-12-19 16:43:38,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 260. [2021-12-19 16:43:38,361 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 16:43:38,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 345 transitions. [2021-12-19 16:43:38,362 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 345 transitions. Word has length 59 [2021-12-19 16:43:38,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:43:38,363 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 345 transitions. [2021-12-19 16:43:38,363 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 16:43:38,363 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 345 transitions. [2021-12-19 16:43:38,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-19 16:43:38,364 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:43:38,364 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 16:43:38,383 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 16:43:38,583 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 16:43:38,584 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 16:43:38,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:43:38,584 INFO L85 PathProgramCache]: Analyzing trace with hash -622651831, now seen corresponding path program 1 times [2021-12-19 16:43:38,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:43:38,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867975065] [2021-12-19 16:43:38,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:38,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:43:38,697 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:43:38,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1055905138] [2021-12-19 16:43:38,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:38,701 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:43:38,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:43:38,702 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 16:43:38,703 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 16:43:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:43:39,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 1555 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 16:43:39,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:43:39,246 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 16:43:39,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:43:39,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:43:39,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867975065] [2021-12-19 16:43:39,247 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:43:39,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055905138] [2021-12-19 16:43:39,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055905138] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:43:39,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:43:39,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 16:43:39,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979229209] [2021-12-19 16:43:39,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:43:39,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 16:43:39,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:43:39,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 16:43:39,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 16:43:39,249 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 16:43:39,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:43:39,298 INFO L93 Difference]: Finished difference Result 502 states and 672 transitions. [2021-12-19 16:43:39,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 16:43:39,299 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 16:43:39,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:43:39,300 INFO L225 Difference]: With dead ends: 502 [2021-12-19 16:43:39,300 INFO L226 Difference]: Without dead ends: 250 [2021-12-19 16:43:39,300 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 16:43:39,301 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 16:43:39,301 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 16:43:39,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-12-19 16:43:39,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 246. [2021-12-19 16:43:39,306 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 16:43:39,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 324 transitions. [2021-12-19 16:43:39,307 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 324 transitions. Word has length 59 [2021-12-19 16:43:39,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:43:39,307 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 324 transitions. [2021-12-19 16:43:39,307 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 16:43:39,308 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 324 transitions. [2021-12-19 16:43:39,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-19 16:43:39,308 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:43:39,308 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 16:43:39,330 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 16:43:39,526 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 16:43:39,526 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 16:43:39,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:43:39,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1240169861, now seen corresponding path program 1 times [2021-12-19 16:43:39,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:43:39,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45322880] [2021-12-19 16:43:39,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:39,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:43:39,598 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:43:39,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1068693097] [2021-12-19 16:43:39,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:39,599 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:43:39,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:43:39,613 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 16:43:39,615 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 16:43:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:43:40,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 1541 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 16:43:40,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:43:40,250 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 16:43:40,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:43:40,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:43:40,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45322880] [2021-12-19 16:43:40,251 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:43:40,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068693097] [2021-12-19 16:43:40,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068693097] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:43:40,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:43:40,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 16:43:40,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488512018] [2021-12-19 16:43:40,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:43:40,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 16:43:40,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:43:40,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 16:43:40,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 16:43:40,252 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 16:43:40,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:43:40,299 INFO L93 Difference]: Finished difference Result 377 states and 506 transitions. [2021-12-19 16:43:40,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 16:43:40,300 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 16:43:40,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:43:40,313 INFO L225 Difference]: With dead ends: 377 [2021-12-19 16:43:40,313 INFO L226 Difference]: Without dead ends: 376 [2021-12-19 16:43:40,313 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 16:43:40,314 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 16:43:40,314 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 16:43:40,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-12-19 16:43:40,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 343. [2021-12-19 16:43:40,321 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 16:43:40,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 442 transitions. [2021-12-19 16:43:40,322 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 442 transitions. Word has length 59 [2021-12-19 16:43:40,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:43:40,323 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 442 transitions. [2021-12-19 16:43:40,323 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 16:43:40,323 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 442 transitions. [2021-12-19 16:43:40,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-19 16:43:40,323 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:43:40,324 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 16:43:40,345 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 16:43:40,524 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 16:43:40,524 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 16:43:40,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:43:40,525 INFO L85 PathProgramCache]: Analyzing trace with hash 209440015, now seen corresponding path program 1 times [2021-12-19 16:43:40,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:43:40,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046028497] [2021-12-19 16:43:40,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:40,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:43:40,597 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:43:40,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1438610132] [2021-12-19 16:43:40,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:40,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:43:40,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:43:40,616 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 16:43:40,617 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 16:43:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:43:41,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 16:43:41,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:43:41,359 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 16:43:41,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:43:41,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:43:41,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046028497] [2021-12-19 16:43:41,360 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:43:41,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438610132] [2021-12-19 16:43:41,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438610132] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:43:41,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:43:41,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 16:43:41,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292065512] [2021-12-19 16:43:41,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:43:41,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 16:43:41,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:43:41,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 16:43:41,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 16:43:41,369 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 16:43:41,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:43:41,433 INFO L93 Difference]: Finished difference Result 343 states and 442 transitions. [2021-12-19 16:43:41,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 16:43:41,434 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 16:43:41,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:43:41,436 INFO L225 Difference]: With dead ends: 343 [2021-12-19 16:43:41,436 INFO L226 Difference]: Without dead ends: 342 [2021-12-19 16:43:41,437 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 16:43:41,437 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 16:43:41,437 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 16:43:41,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-12-19 16:43:41,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-12-19 16:43:41,445 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 16:43:41,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 441 transitions. [2021-12-19 16:43:41,446 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 441 transitions. Word has length 60 [2021-12-19 16:43:41,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:43:41,446 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 441 transitions. [2021-12-19 16:43:41,446 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 16:43:41,447 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 441 transitions. [2021-12-19 16:43:41,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-19 16:43:41,447 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:43:41,448 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 16:43:41,469 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 16:43:41,667 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 16:43:41,668 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 16:43:41,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:43:41,668 INFO L85 PathProgramCache]: Analyzing trace with hash -258241977, now seen corresponding path program 1 times [2021-12-19 16:43:41,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:43:41,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581344710] [2021-12-19 16:43:41,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:41,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:43:41,739 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:43:41,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681945667] [2021-12-19 16:43:41,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:41,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:43:41,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:43:41,741 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 16:43:41,742 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 16:43:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:43:42,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 16:43:42,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:43:42,624 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 16:43:42,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:43:42,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:43:42,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581344710] [2021-12-19 16:43:42,625 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:43:42,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681945667] [2021-12-19 16:43:42,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681945667] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:43:42,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:43:42,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 16:43:42,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208397678] [2021-12-19 16:43:42,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:43:42,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 16:43:42,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:43:42,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 16:43:42,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 16:43:42,627 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 16:43:42,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:43:42,678 INFO L93 Difference]: Finished difference Result 692 states and 904 transitions. [2021-12-19 16:43:42,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 16:43:42,679 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 16:43:42,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:43:42,680 INFO L225 Difference]: With dead ends: 692 [2021-12-19 16:43:42,680 INFO L226 Difference]: Without dead ends: 409 [2021-12-19 16:43:42,681 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 16:43:42,681 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 16:43:42,682 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 16:43:42,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2021-12-19 16:43:42,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 406. [2021-12-19 16:43:42,690 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 16:43:42,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 527 transitions. [2021-12-19 16:43:42,691 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 527 transitions. Word has length 72 [2021-12-19 16:43:42,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:43:42,691 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 527 transitions. [2021-12-19 16:43:42,692 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 16:43:42,692 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 527 transitions. [2021-12-19 16:43:42,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-19 16:43:42,693 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:43:42,693 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 16:43:42,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-19 16:43:42,911 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 16:43:42,912 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 16:43:42,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:43:42,912 INFO L85 PathProgramCache]: Analyzing trace with hash -146069929, now seen corresponding path program 1 times [2021-12-19 16:43:42,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:43:42,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884631830] [2021-12-19 16:43:42,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:42,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:43:42,940 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:43:42,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1872403643] [2021-12-19 16:43:42,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:42,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:43:42,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:43:42,942 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 16:43:42,943 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 16:43:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:43:43,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 16:43:43,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:43:43,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:43:43,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:43:43,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:43:43,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884631830] [2021-12-19 16:43:43,674 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:43:43,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872403643] [2021-12-19 16:43:43,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872403643] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:43:43,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:43:43,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 16:43:43,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089926462] [2021-12-19 16:43:43,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:43:43,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 16:43:43,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:43:43,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 16:43:43,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 16:43:43,676 INFO L87 Difference]: Start difference. First operand 406 states and 527 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-19 16:43:43,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:43:43,698 INFO L93 Difference]: Finished difference Result 765 states and 1007 transitions. [2021-12-19 16:43:43,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 16:43:43,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 87 [2021-12-19 16:43:43,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:43:43,700 INFO L225 Difference]: With dead ends: 765 [2021-12-19 16:43:43,700 INFO L226 Difference]: Without dead ends: 412 [2021-12-19 16:43:43,700 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 16:43:43,701 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 16:43:43,701 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 16:43:43,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-12-19 16:43:43,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2021-12-19 16:43:43,709 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 16:43:43,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 535 transitions. [2021-12-19 16:43:43,710 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 535 transitions. Word has length 87 [2021-12-19 16:43:43,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:43:43,711 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 535 transitions. [2021-12-19 16:43:43,711 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), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-19 16:43:43,711 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 535 transitions. [2021-12-19 16:43:43,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-19 16:43:43,712 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:43:43,712 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 16:43:43,742 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 16:43:43,943 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 16:43:43,943 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 16:43:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:43:43,944 INFO L85 PathProgramCache]: Analyzing trace with hash 104636021, now seen corresponding path program 1 times [2021-12-19 16:43:43,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:43:43,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506204205] [2021-12-19 16:43:43,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:43,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:43:43,971 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:43:43,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [714316097] [2021-12-19 16:43:43,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:43,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:43:43,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:43:43,973 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 16:43:43,974 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 16:43:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:43:44,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-19 16:43:44,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:43:44,735 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-19 16:43:44,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 16:43:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-19 16:43:44,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:43:44,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506204205] [2021-12-19 16:43:44,885 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:43:44,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714316097] [2021-12-19 16:43:44,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714316097] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 16:43:44,885 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 16:43:44,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-19 16:43:44,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285054772] [2021-12-19 16:43:44,885 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 16:43:44,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-19 16:43:44,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:43:44,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-19 16:43:44,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-19 16:43:44,887 INFO L87 Difference]: Start difference. First operand 412 states and 535 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-19 16:43:44,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:43:44,967 INFO L93 Difference]: Finished difference Result 793 states and 1049 transitions. [2021-12-19 16:43:44,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-19 16:43:44,968 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 89 [2021-12-19 16:43:44,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:43:44,969 INFO L225 Difference]: With dead ends: 793 [2021-12-19 16:43:44,969 INFO L226 Difference]: Without dead ends: 434 [2021-12-19 16:43:44,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2021-12-19 16:43:44,970 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 19 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 16:43:44,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 925 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 16:43:44,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-12-19 16:43:44,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 430. [2021-12-19 16:43:44,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 390 states have (on average 1.3102564102564103) internal successors, (511), 413 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 16:43:44,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 563 transitions. [2021-12-19 16:43:44,979 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 563 transitions. Word has length 89 [2021-12-19 16:43:44,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:43:44,980 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 563 transitions. [2021-12-19 16:43:44,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-19 16:43:44,980 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 563 transitions. [2021-12-19 16:43:44,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-19 16:43:44,981 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:43:44,981 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 16:43:45,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-19 16:43:45,195 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 16:43:45,195 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 16:43:45,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:43:45,195 INFO L85 PathProgramCache]: Analyzing trace with hash -2091187945, now seen corresponding path program 2 times [2021-12-19 16:43:45,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:43:45,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427999120] [2021-12-19 16:43:45,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:45,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:43:45,225 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:43:45,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [540893588] [2021-12-19 16:43:45,225 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 16:43:45,225 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:43:45,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:43:45,226 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 16:43:45,227 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 16:43:57,428 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-19 16:43:57,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 16:43:57,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 25 conjunts are in the unsatisfiable core [2021-12-19 16:43:57,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:43:57,624 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-19 16:43:57,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 16:43:57,965 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-19 16:43:57,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:43:57,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427999120] [2021-12-19 16:43:57,966 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:43:57,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540893588] [2021-12-19 16:43:57,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540893588] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 16:43:57,966 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 16:43:57,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-12-19 16:43:57,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642678946] [2021-12-19 16:43:57,966 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 16:43:57,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-19 16:43:57,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:43:57,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-19 16:43:57,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-12-19 16:43:57,967 INFO L87 Difference]: Start difference. First operand 430 states and 563 transitions. Second operand has 15 states, 15 states have (on average 7.066666666666666) internal successors, (106), 15 states have internal predecessors, (106), 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 16:43:58,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:43:58,866 INFO L93 Difference]: Finished difference Result 885 states and 1175 transitions. [2021-12-19 16:43:58,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-19 16:43:58,883 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.066666666666666) internal successors, (106), 15 states have internal predecessors, (106), 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 16:43:58,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:43:58,884 INFO L225 Difference]: With dead ends: 885 [2021-12-19 16:43:58,884 INFO L226 Difference]: Without dead ends: 450 [2021-12-19 16:43:58,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=234, Invalid=468, Unknown=0, NotChecked=0, Total=702 [2021-12-19 16:43:58,886 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 296 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2191 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-19 16:43:58,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 2191 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-19 16:43:58,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2021-12-19 16:43:58,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 442. [2021-12-19 16:43:58,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 402 states have (on average 1.2960199004975124) internal successors, (521), 425 states have internal predecessors, (521), 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 16:43:58,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 573 transitions. [2021-12-19 16:43:58,898 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 573 transitions. Word has length 93 [2021-12-19 16:43:58,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:43:58,899 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 573 transitions. [2021-12-19 16:43:58,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.066666666666666) internal successors, (106), 15 states have internal predecessors, (106), 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 16:43:58,899 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 573 transitions. [2021-12-19 16:43:58,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-19 16:43:58,900 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:43:58,901 INFO L514 BasicCegarLoop]: trace histogram [12, 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 16:43:58,932 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 16:43:59,115 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 16:43:59,115 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 16:43:59,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:43:59,116 INFO L85 PathProgramCache]: Analyzing trace with hash -438421481, now seen corresponding path program 3 times [2021-12-19 16:43:59,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:43:59,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156648682] [2021-12-19 16:43:59,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:43:59,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:43:59,152 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:43:59,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843805542] [2021-12-19 16:43:59,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-19 16:43:59,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:43:59,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:43:59,153 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 16:43:59,157 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 16:44:02,548 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-19 16:44:02,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 16:44:02,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-19 16:44:02,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:44:02,669 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-12-19 16:44:02,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 16:44:02,777 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-12-19 16:44:02,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:44:02,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156648682] [2021-12-19 16:44:02,777 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:44:02,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843805542] [2021-12-19 16:44:02,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843805542] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 16:44:02,778 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 16:44:02,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-12-19 16:44:02,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396069955] [2021-12-19 16:44:02,778 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 16:44:02,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-19 16:44:02,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:44:02,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-19 16:44:02,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-19 16:44:02,779 INFO L87 Difference]: Start difference. First operand 442 states and 573 transitions. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 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 16:44:03,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:44:03,010 INFO L93 Difference]: Finished difference Result 831 states and 1090 transitions. [2021-12-19 16:44:03,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-19 16:44:03,011 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 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 99 [2021-12-19 16:44:03,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:44:03,012 INFO L225 Difference]: With dead ends: 831 [2021-12-19 16:44:03,012 INFO L226 Difference]: Without dead ends: 456 [2021-12-19 16:44:03,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306 [2021-12-19 16:44:03,013 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 27 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 16:44:03,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 1514 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 16:44:03,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-12-19 16:44:03,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 444. [2021-12-19 16:44:03,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 404 states have (on average 1.2995049504950495) internal successors, (525), 427 states have internal predecessors, (525), 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 16:44:03,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 577 transitions. [2021-12-19 16:44:03,026 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 577 transitions. Word has length 99 [2021-12-19 16:44:03,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:44:03,026 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 577 transitions. [2021-12-19 16:44:03,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 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 16:44:03,026 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 577 transitions. [2021-12-19 16:44:03,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-19 16:44:03,028 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:44:03,028 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 16:44:03,054 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 16:44:03,251 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 16:44:03,251 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 16:44:03,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:44:03,252 INFO L85 PathProgramCache]: Analyzing trace with hash 498755991, now seen corresponding path program 4 times [2021-12-19 16:44:03,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:44:03,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053274923] [2021-12-19 16:44:03,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:44:03,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:44:03,290 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:44:03,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [688286718] [2021-12-19 16:44:03,291 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-19 16:44:03,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:44:03,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:44:03,292 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 16:44:03,293 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 16:44:04,127 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-19 16:44:04,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 16:44:04,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 37 conjunts are in the unsatisfiable core [2021-12-19 16:44:04,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:44:04,338 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 38 proven. 102 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-19 16:44:04,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 16:44:04,696 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 79 proven. 21 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-12-19 16:44:04,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:44:04,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053274923] [2021-12-19 16:44:04,697 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:44:04,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688286718] [2021-12-19 16:44:04,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688286718] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 16:44:04,697 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 16:44:04,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 22 [2021-12-19 16:44:04,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638602015] [2021-12-19 16:44:04,697 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 16:44:04,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-19 16:44:04,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:44:04,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-19 16:44:04,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2021-12-19 16:44:04,699 INFO L87 Difference]: Start difference. First operand 444 states and 577 transitions. Second operand has 22 states, 22 states have (on average 5.636363636363637) internal successors, (124), 22 states have internal predecessors, (124), 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 16:44:07,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:44:07,115 INFO L93 Difference]: Finished difference Result 882 states and 1161 transitions. [2021-12-19 16:44:07,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-19 16:44:07,116 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.636363636363637) internal successors, (124), 22 states have internal predecessors, (124), 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 103 [2021-12-19 16:44:07,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:44:07,117 INFO L225 Difference]: With dead ends: 882 [2021-12-19 16:44:07,117 INFO L226 Difference]: Without dead ends: 460 [2021-12-19 16:44:07,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=418, Invalid=1064, Unknown=0, NotChecked=0, Total=1482 [2021-12-19 16:44:07,119 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 304 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 3414 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-19 16:44:07,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 3414 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-19 16:44:07,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2021-12-19 16:44:07,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 448. [2021-12-19 16:44:07,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 408 states have (on average 1.3063725490196079) internal successors, (533), 431 states have internal predecessors, (533), 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 16:44:07,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 585 transitions. [2021-12-19 16:44:07,130 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 585 transitions. Word has length 103 [2021-12-19 16:44:07,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:44:07,130 INFO L470 AbstractCegarLoop]: Abstraction has 448 states and 585 transitions. [2021-12-19 16:44:07,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.636363636363637) internal successors, (124), 22 states have internal predecessors, (124), 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 16:44:07,131 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 585 transitions. [2021-12-19 16:44:07,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-19 16:44:07,131 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:44:07,132 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 16:44:07,153 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 16:44:07,349 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 16:44:07,349 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 16:44:07,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:44:07,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1737192297, now seen corresponding path program 5 times [2021-12-19 16:44:07,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:44:07,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300285232] [2021-12-19 16:44:07,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:44:07,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:44:07,411 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:44:07,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1398294983] [2021-12-19 16:44:07,412 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-19 16:44:07,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:44:07,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:44:07,413 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 16:44:07,414 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