./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_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_SAX_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 ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 16:31:24,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 16:31:24,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 16:31:24,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 16:31:24,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 16:31:24,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 16:31:24,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 16:31:24,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 16:31:24,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 16:31:24,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 16:31:24,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 16:31:24,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 16:31:24,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 16:31:24,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 16:31:24,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 16:31:24,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 16:31:24,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 16:31:24,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 16:31:24,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 16:31:24,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 16:31:24,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 16:31:24,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 16:31:24,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 16:31:24,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 16:31:24,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 16:31:24,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 16:31:24,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 16:31:24,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 16:31:24,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 16:31:24,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 16:31:24,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 16:31:24,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 16:31:24,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 16:31:24,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 16:31:24,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 16:31:24,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 16:31:24,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 16:31:24,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 16:31:24,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 16:31:24,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 16:31:24,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 16:31:24,281 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-19 16:31:24,314 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 16:31:24,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 16:31:24,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 16:31:24,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 16:31:24,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-19 16:31:24,316 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-19 16:31:24,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 16:31:24,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 16:31:24,317 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 16:31:24,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 16:31:24,318 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 16:31:24,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 16:31:24,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 16:31:24,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 16:31:24,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 16:31:24,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-19 16:31:24,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-19 16:31:24,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-19 16:31:24,319 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-19 16:31:24,320 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 16:31:24,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 16:31:24,320 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 16:31:24,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-19 16:31:24,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 16:31:24,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 16:31:24,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-19 16:31:24,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 16:31:24,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 16:31:24,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-19 16:31:24,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-19 16:31:24,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 16:31:24,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-19 16:31:24,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-19 16:31:24,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 16:31:24,324 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 [2021-12-19 16:31:24,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 16:31:24,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 16:31:24,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 16:31:24,568 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 16:31:24,568 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 16:31:24,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2021-12-19 16:31:24,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4a9d97ac/3050ffafa0e74630ad5afa0c9aaf957f/FLAG256a7cf72 [2021-12-19 16:31:25,110 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 16:31:25,111 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2021-12-19 16:31:25,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4a9d97ac/3050ffafa0e74630ad5afa0c9aaf957f/FLAG256a7cf72 [2021-12-19 16:31:25,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4a9d97ac/3050ffafa0e74630ad5afa0c9aaf957f [2021-12-19 16:31:25,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 16:31:25,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 16:31:25,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 16:31:25,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 16:31:25,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 16:31:25,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:31:25" (1/1) ... [2021-12-19 16:31:25,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6cd2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:25, skipping insertion in model container [2021-12-19 16:31:25,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:31:25" (1/1) ... [2021-12-19 16:31:25,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 16:31:25,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 16:31:25,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[33021,33034] [2021-12-19 16:31:25,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[45234,45247] [2021-12-19 16:31:25,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 16:31:25,989 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 16:31:26,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[33021,33034] [2021-12-19 16:31:26,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[45234,45247] [2021-12-19 16:31:26,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 16:31:26,123 INFO L208 MainTranslator]: Completed translation [2021-12-19 16:31:26,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:26 WrapperNode [2021-12-19 16:31:26,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 16:31:26,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 16:31:26,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 16:31:26,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 16:31:26,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:26" (1/1) ... [2021-12-19 16:31:26,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:26" (1/1) ... [2021-12-19 16:31:26,222 INFO L137 Inliner]: procedures = 177, calls = 297, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1002 [2021-12-19 16:31:26,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 16:31:26,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 16:31:26,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 16:31:26,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 16:31:26,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:26" (1/1) ... [2021-12-19 16:31:26,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:26" (1/1) ... [2021-12-19 16:31:26,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:26" (1/1) ... [2021-12-19 16:31:26,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:26" (1/1) ... [2021-12-19 16:31:26,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:26" (1/1) ... [2021-12-19 16:31:26,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:26" (1/1) ... [2021-12-19 16:31:26,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:26" (1/1) ... [2021-12-19 16:31:26,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 16:31:26,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 16:31:26,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 16:31:26,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 16:31:26,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:26" (1/1) ... [2021-12-19 16:31:26,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 16:31:26,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:26,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-19 16:31:26,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-19 16:31:26,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-19 16:31:26,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-19 16:31:26,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-19 16:31:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-19 16:31:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-19 16:31:26,402 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-19 16:31:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-12-19 16:31:26,403 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-12-19 16:31:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-19 16:31:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 16:31:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-19 16:31:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-19 16:31:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-19 16:31:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-19 16:31:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-19 16:31:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 16:31:26,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 16:31:26,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 16:31:26,559 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 16:31:26,560 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 16:31:27,483 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 16:31:27,494 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 16:31:27,494 INFO L301 CfgBuilder]: Removed 62 assume(true) statements. [2021-12-19 16:31:27,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:31:27 BoogieIcfgContainer [2021-12-19 16:31:27,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 16:31:27,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-19 16:31:27,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-19 16:31:27,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-19 16:31:27,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:31:25" (1/3) ... [2021-12-19 16:31:27,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fbb90a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:31:27, skipping insertion in model container [2021-12-19 16:31:27,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:31:26" (2/3) ... [2021-12-19 16:31:27,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fbb90a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:31:27, skipping insertion in model container [2021-12-19 16:31:27,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:31:27" (3/3) ... [2021-12-19 16:31:27,513 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test8-1.i [2021-12-19 16:31:27,518 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-19 16:31:27,518 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-12-19 16:31:27,571 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-19 16:31:27,583 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-19 16:31:27,584 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-19 16:31:27,609 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 16:31:27,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-19 16:31:27,613 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:27,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:27,614 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:27,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:27,624 INFO L85 PathProgramCache]: Analyzing trace with hash 232940209, now seen corresponding path program 1 times [2021-12-19 16:31:27,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:27,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850560768] [2021-12-19 16:31:27,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:27,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:27,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:27,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:27,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850560768] [2021-12-19 16:31:27,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850560768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:27,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:27,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 16:31:27,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953535962] [2021-12-19 16:31:27,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:27,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-19 16:31:27,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:27,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-19 16:31:27,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-19 16:31:27,873 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 16:31:27,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:27,944 INFO L93 Difference]: Finished difference Result 474 states and 797 transitions. [2021-12-19 16:31:27,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-19 16:31:27,946 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-19 16:31:27,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:27,955 INFO L225 Difference]: With dead ends: 474 [2021-12-19 16:31:27,956 INFO L226 Difference]: Without dead ends: 234 [2021-12-19 16:31:27,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-19 16:31:27,963 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 16:31:27,964 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 16:31:27,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-12-19 16:31:28,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-12-19 16:31:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 203 states have (on average 1.374384236453202) internal successors, (279), 225 states have internal predecessors, (279), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-12-19 16:31:28,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 319 transitions. [2021-12-19 16:31:28,039 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 319 transitions. Word has length 7 [2021-12-19 16:31:28,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:28,040 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 319 transitions. [2021-12-19 16:31:28,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:28,040 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 319 transitions. [2021-12-19 16:31:28,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-19 16:31:28,041 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:28,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:28,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-19 16:31:28,041 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:28,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:28,042 INFO L85 PathProgramCache]: Analyzing trace with hash 232942131, now seen corresponding path program 1 times [2021-12-19 16:31:28,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:28,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291097861] [2021-12-19 16:31:28,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:28,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:28,070 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:28,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1787836255] [2021-12-19 16:31:28,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:28,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:28,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:28,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:28,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-19 16:31:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:28,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-19 16:31:28,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:28,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-19 16:31:28,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-19 16:31:28,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-12-19 16:31:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:28,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:31:28,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:28,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291097861] [2021-12-19 16:31:28,487 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:28,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787836255] [2021-12-19 16:31:28,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787836255] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:28,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:28,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 16:31:28,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543824574] [2021-12-19 16:31:28,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:28,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 16:31:28,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:28,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 16:31:28,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 16:31:28,493 INFO L87 Difference]: Start difference. First operand 234 states and 319 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:29,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:29,198 INFO L93 Difference]: Finished difference Result 362 states and 487 transitions. [2021-12-19 16:31:29,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 16:31:29,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-19 16:31:29,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:29,203 INFO L225 Difference]: With dead ends: 362 [2021-12-19 16:31:29,204 INFO L226 Difference]: Without dead ends: 360 [2021-12-19 16:31:29,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-19 16:31:29,205 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 197 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:29,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 1039 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-19 16:31:29,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-12-19 16:31:29,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 240. [2021-12-19 16:31:29,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 209 states have (on average 1.368421052631579) internal successors, (286), 231 states have internal predecessors, (286), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-12-19 16:31:29,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 326 transitions. [2021-12-19 16:31:29,244 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 326 transitions. Word has length 7 [2021-12-19 16:31:29,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:29,244 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 326 transitions. [2021-12-19 16:31:29,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:29,245 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 326 transitions. [2021-12-19 16:31:29,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-19 16:31:29,247 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:29,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:29,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-19 16:31:29,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:29,460 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:29,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:29,461 INFO L85 PathProgramCache]: Analyzing trace with hash 923887179, now seen corresponding path program 1 times [2021-12-19 16:31:29,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:29,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083231998] [2021-12-19 16:31:29,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:29,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:29,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:29,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:29,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083231998] [2021-12-19 16:31:29,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083231998] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:29,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:29,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 16:31:29,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144453469] [2021-12-19 16:31:29,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:29,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 16:31:29,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:29,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 16:31:29,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 16:31:29,570 INFO L87 Difference]: Start difference. First operand 240 states and 326 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:29,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:29,826 INFO L93 Difference]: Finished difference Result 448 states and 615 transitions. [2021-12-19 16:31:29,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 16:31:29,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-12-19 16:31:29,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:29,831 INFO L225 Difference]: With dead ends: 448 [2021-12-19 16:31:29,831 INFO L226 Difference]: Without dead ends: 319 [2021-12-19 16:31:29,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 16:31:29,833 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 100 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:29,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 843 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-19 16:31:29,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-12-19 16:31:29,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 240. [2021-12-19 16:31:29,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 209 states have (on average 1.3636363636363635) internal successors, (285), 231 states have internal predecessors, (285), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-12-19 16:31:29,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 325 transitions. [2021-12-19 16:31:29,850 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 325 transitions. Word has length 51 [2021-12-19 16:31:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:29,851 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 325 transitions. [2021-12-19 16:31:29,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:29,851 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 325 transitions. [2021-12-19 16:31:29,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-19 16:31:29,854 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:29,855 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:29,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-19 16:31:29,855 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:29,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:29,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1684967237, now seen corresponding path program 1 times [2021-12-19 16:31:29,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:29,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425094728] [2021-12-19 16:31:29,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:29,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:29,973 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:29,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1699658429] [2021-12-19 16:31:29,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:29,974 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:29,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:29,975 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:30,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-19 16:31:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:30,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 1551 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 16:31:30,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:30,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:30,613 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:31:30,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:30,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425094728] [2021-12-19 16:31:30,614 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:30,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699658429] [2021-12-19 16:31:30,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699658429] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:30,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:30,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 16:31:30,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904439789] [2021-12-19 16:31:30,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:30,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 16:31:30,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:30,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 16:31:30,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 16:31:30,616 INFO L87 Difference]: Start difference. First operand 240 states and 325 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:30,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:30,674 INFO L93 Difference]: Finished difference Result 493 states and 673 transitions. [2021-12-19 16:31:30,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 16:31:30,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-12-19 16:31:30,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:30,677 INFO L225 Difference]: With dead ends: 493 [2021-12-19 16:31:30,677 INFO L226 Difference]: Without dead ends: 261 [2021-12-19 16:31:30,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 16:31:30,679 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 10 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:30,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 583 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 16:31:30,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-12-19 16:31:30,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 260. [2021-12-19 16:31:30,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 229 states have (on average 1.331877729257642) internal successors, (305), 251 states have internal predecessors, (305), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-12-19 16:31:30,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 345 transitions. [2021-12-19 16:31:30,691 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 345 transitions. Word has length 59 [2021-12-19 16:31:30,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:30,691 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 345 transitions. [2021-12-19 16:31:30,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:30,692 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 345 transitions. [2021-12-19 16:31:30,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-19 16:31:30,693 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:30,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:30,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-19 16:31:30,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-19 16:31:30,908 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:30,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:30,908 INFO L85 PathProgramCache]: Analyzing trace with hash -622651831, now seen corresponding path program 1 times [2021-12-19 16:31:30,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:30,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112713556] [2021-12-19 16:31:30,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:30,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:30,992 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:30,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [504534332] [2021-12-19 16:31:30,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:30,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:30,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:30,994 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:31,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-19 16:31:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:31,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 1555 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 16:31:31,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:31,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:31,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:31:31,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:31,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112713556] [2021-12-19 16:31:31,633 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:31,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504534332] [2021-12-19 16:31:31,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504534332] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:31,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:31,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 16:31:31,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386123299] [2021-12-19 16:31:31,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:31,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 16:31:31,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:31,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 16:31:31,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 16:31:31,635 INFO L87 Difference]: Start difference. First operand 260 states and 345 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:31,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:31,700 INFO L93 Difference]: Finished difference Result 502 states and 672 transitions. [2021-12-19 16:31:31,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 16:31:31,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-12-19 16:31:31,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:31,714 INFO L225 Difference]: With dead ends: 502 [2021-12-19 16:31:31,715 INFO L226 Difference]: Without dead ends: 250 [2021-12-19 16:31:31,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 16:31:31,717 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 223 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:31,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 679 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 16:31:31,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-12-19 16:31:31,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 246. [2021-12-19 16:31:31,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 215 states have (on average 1.3209302325581396) internal successors, (284), 237 states have internal predecessors, (284), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-12-19 16:31:31,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 324 transitions. [2021-12-19 16:31:31,726 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 324 transitions. Word has length 59 [2021-12-19 16:31:31,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:31,727 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 324 transitions. [2021-12-19 16:31:31,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:31,727 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 324 transitions. [2021-12-19 16:31:31,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-19 16:31:31,728 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:31,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:31,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-19 16:31:31,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:31,947 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:31,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:31,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1240169861, now seen corresponding path program 1 times [2021-12-19 16:31:31,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:31,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788160193] [2021-12-19 16:31:31,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:31,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:32,021 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:32,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2099102467] [2021-12-19 16:31:32,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:32,022 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:32,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:32,023 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:32,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-19 16:31:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:32,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 1541 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 16:31:32,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:32,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:32,788 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:31:32,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:32,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788160193] [2021-12-19 16:31:32,788 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:32,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099102467] [2021-12-19 16:31:32,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099102467] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:32,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:32,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 16:31:32,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136176572] [2021-12-19 16:31:32,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:32,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 16:31:32,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:32,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 16:31:32,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 16:31:32,792 INFO L87 Difference]: Start difference. First operand 246 states and 324 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:32,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:32,849 INFO L93 Difference]: Finished difference Result 377 states and 506 transitions. [2021-12-19 16:31:32,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 16:31:32,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-12-19 16:31:32,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:32,853 INFO L225 Difference]: With dead ends: 377 [2021-12-19 16:31:32,853 INFO L226 Difference]: Without dead ends: 376 [2021-12-19 16:31:32,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 16:31:32,855 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 95 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:32,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 919 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 16:31:32,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-12-19 16:31:32,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 343. [2021-12-19 16:31:32,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 307 states have (on average 1.283387622149837) internal successors, (394), 329 states have internal predecessors, (394), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (24), 9 states have call predecessors, (24), 24 states have call successors, (24) [2021-12-19 16:31:32,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 442 transitions. [2021-12-19 16:31:32,868 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 442 transitions. Word has length 59 [2021-12-19 16:31:32,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:32,869 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 442 transitions. [2021-12-19 16:31:32,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:32,869 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 442 transitions. [2021-12-19 16:31:32,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-19 16:31:32,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:32,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:32,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-19 16:31:33,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:33,077 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:33,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:33,077 INFO L85 PathProgramCache]: Analyzing trace with hash 209440015, now seen corresponding path program 1 times [2021-12-19 16:31:33,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:33,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354063576] [2021-12-19 16:31:33,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:33,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:33,177 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:33,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [521123090] [2021-12-19 16:31:33,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:33,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:33,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:33,179 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:33,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-19 16:31:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:33,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 16:31:33,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:34,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:34,007 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:31:34,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:34,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354063576] [2021-12-19 16:31:34,008 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:34,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521123090] [2021-12-19 16:31:34,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521123090] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:34,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:34,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 16:31:34,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192513108] [2021-12-19 16:31:34,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:34,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 16:31:34,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:34,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 16:31:34,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 16:31:34,011 INFO L87 Difference]: Start difference. First operand 343 states and 442 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:34,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:34,083 INFO L93 Difference]: Finished difference Result 343 states and 442 transitions. [2021-12-19 16:31:34,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 16:31:34,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-12-19 16:31:34,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:34,086 INFO L225 Difference]: With dead ends: 343 [2021-12-19 16:31:34,086 INFO L226 Difference]: Without dead ends: 342 [2021-12-19 16:31:34,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 16:31:34,087 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 269 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:34,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 539 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 16:31:34,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-12-19 16:31:34,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-12-19 16:31:34,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 307 states have (on average 1.280130293159609) internal successors, (393), 328 states have internal predecessors, (393), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (24), 9 states have call predecessors, (24), 24 states have call successors, (24) [2021-12-19 16:31:34,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 441 transitions. [2021-12-19 16:31:34,099 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 441 transitions. Word has length 60 [2021-12-19 16:31:34,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:34,100 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 441 transitions. [2021-12-19 16:31:34,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 16:31:34,100 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 441 transitions. [2021-12-19 16:31:34,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-19 16:31:34,101 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:34,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:34,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-19 16:31:34,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:34,308 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:34,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:34,308 INFO L85 PathProgramCache]: Analyzing trace with hash -258241977, now seen corresponding path program 1 times [2021-12-19 16:31:34,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:34,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967743525] [2021-12-19 16:31:34,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:34,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:34,378 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:34,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [228173975] [2021-12-19 16:31:34,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:34,378 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:34,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:34,380 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:34,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-19 16:31:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:35,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 16:31:35,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:35,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 16:31:35,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:31:35,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:35,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967743525] [2021-12-19 16:31:35,357 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:35,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228173975] [2021-12-19 16:31:35,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228173975] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:35,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:35,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 16:31:35,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309299496] [2021-12-19 16:31:35,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:35,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 16:31:35,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:35,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 16:31:35,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 16:31:35,358 INFO L87 Difference]: Start difference. First operand 342 states and 441 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-19 16:31:35,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:35,434 INFO L93 Difference]: Finished difference Result 692 states and 904 transitions. [2021-12-19 16:31:35,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 16:31:35,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 72 [2021-12-19 16:31:35,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:35,437 INFO L225 Difference]: With dead ends: 692 [2021-12-19 16:31:35,437 INFO L226 Difference]: Without dead ends: 409 [2021-12-19 16:31:35,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 16:31:35,439 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 100 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:35,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 636 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 16:31:35,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2021-12-19 16:31:35,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 406. [2021-12-19 16:31:35,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 370 states have (on average 1.2891891891891891) internal successors, (477), 391 states have internal predecessors, (477), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (25), 10 states have call predecessors, (25), 25 states have call successors, (25) [2021-12-19 16:31:35,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 527 transitions. [2021-12-19 16:31:35,454 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 527 transitions. Word has length 72 [2021-12-19 16:31:35,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:35,454 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 527 transitions. [2021-12-19 16:31:35,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-19 16:31:35,455 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 527 transitions. [2021-12-19 16:31:35,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-19 16:31:35,456 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:35,456 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:35,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-19 16:31:35,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:35,672 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:35,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:35,672 INFO L85 PathProgramCache]: Analyzing trace with hash -146069929, now seen corresponding path program 1 times [2021-12-19 16:31:35,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:35,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448366725] [2021-12-19 16:31:35,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:35,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:35,704 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:35,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [109576442] [2021-12-19 16:31:35,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:35,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:35,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:35,706 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:35,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-19 16:31:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:36,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 16:31:36,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:36,485 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 16:31:36,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-19 16:31:36,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:36,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448366725] [2021-12-19 16:31:36,486 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:36,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109576442] [2021-12-19 16:31:36,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109576442] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 16:31:36,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 16:31:36,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 16:31:36,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214614991] [2021-12-19 16:31:36,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 16:31:36,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 16:31:36,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:36,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 16:31:36,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 16:31:36,489 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 16:31:36,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:36,523 INFO L93 Difference]: Finished difference Result 765 states and 1007 transitions. [2021-12-19 16:31:36,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 16:31:36,523 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 16:31:36,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:36,526 INFO L225 Difference]: With dead ends: 765 [2021-12-19 16:31:36,526 INFO L226 Difference]: Without dead ends: 412 [2021-12-19 16:31:36,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 16:31:36,527 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 2 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:36,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 920 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 16:31:36,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-12-19 16:31:36,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2021-12-19 16:31:36,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 374 states have (on average 1.2914438502673797) internal successors, (483), 397 states have internal predecessors, (483), 25 states have call successors, (25), 5 states have call predecessors, (25), 6 states have return successors, (27), 10 states have call predecessors, (27), 25 states have call successors, (27) [2021-12-19 16:31:36,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 535 transitions. [2021-12-19 16:31:36,543 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 535 transitions. Word has length 87 [2021-12-19 16:31:36,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:36,543 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 535 transitions. [2021-12-19 16:31:36,543 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 16:31:36,544 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 535 transitions. [2021-12-19 16:31:36,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-19 16:31:36,544 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:36,545 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:36,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-19 16:31:36,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:36,759 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:36,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:36,760 INFO L85 PathProgramCache]: Analyzing trace with hash 104636021, now seen corresponding path program 1 times [2021-12-19 16:31:36,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:36,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530604428] [2021-12-19 16:31:36,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:36,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:36,803 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:36,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241093373] [2021-12-19 16:31:36,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:36,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:36,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:36,805 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:36,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-19 16:31:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 16:31:37,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-19 16:31:37,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:37,623 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 16:31:37,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 16:31:37,808 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 16:31:37,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:37,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530604428] [2021-12-19 16:31:37,809 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:37,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241093373] [2021-12-19 16:31:37,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241093373] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 16:31:37,810 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 16:31:37,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-19 16:31:37,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049725913] [2021-12-19 16:31:37,810 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 16:31:37,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-19 16:31:37,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:37,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-19 16:31:37,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-19 16:31:37,812 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 16:31:37,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:37,921 INFO L93 Difference]: Finished difference Result 793 states and 1049 transitions. [2021-12-19 16:31:37,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-19 16:31:37,922 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 16:31:37,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:37,924 INFO L225 Difference]: With dead ends: 793 [2021-12-19 16:31:37,925 INFO L226 Difference]: Without dead ends: 434 [2021-12-19 16:31:37,926 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 16:31:37,926 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 16:31:37,927 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 16:31:37,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-12-19 16:31:37,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 430. [2021-12-19 16:31:37,939 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 16:31:37,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 563 transitions. [2021-12-19 16:31:37,941 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 563 transitions. Word has length 89 [2021-12-19 16:31:37,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:37,942 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 563 transitions. [2021-12-19 16:31:37,942 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 16:31:37,942 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 563 transitions. [2021-12-19 16:31:37,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-19 16:31:37,943 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:37,943 INFO L514 BasicCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 16:31:37,979 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 16:31:38,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-19 16:31:38,172 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:38,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:38,172 INFO L85 PathProgramCache]: Analyzing trace with hash -2091187945, now seen corresponding path program 2 times [2021-12-19 16:31:38,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:38,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459637661] [2021-12-19 16:31:38,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:38,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:38,220 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:38,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515265685] [2021-12-19 16:31:38,221 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 16:31:38,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:38,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:38,222 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:38,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-19 16:31:52,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-19 16:31:52,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 16:31:52,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 25 conjunts are in the unsatisfiable core [2021-12-19 16:31:52,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:52,381 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 16:31:52,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 16:31:52,786 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 16:31:52,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:52,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459637661] [2021-12-19 16:31:52,786 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:52,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515265685] [2021-12-19 16:31:52,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515265685] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 16:31:52,786 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 16:31:52,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-12-19 16:31:52,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874361217] [2021-12-19 16:31:52,787 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 16:31:52,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-19 16:31:52,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:52,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-19 16:31:52,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-12-19 16:31:52,788 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 16:31:53,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:53,573 INFO L93 Difference]: Finished difference Result 885 states and 1175 transitions. [2021-12-19 16:31:53,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-19 16:31:53,574 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 16:31:53,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:53,578 INFO L225 Difference]: With dead ends: 885 [2021-12-19 16:31:53,578 INFO L226 Difference]: Without dead ends: 450 [2021-12-19 16:31:53,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=234, Invalid=468, Unknown=0, NotChecked=0, Total=702 [2021-12-19 16:31:53,580 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, 0.3s IncrementalHoareTripleChecker+Time [2021-12-19 16:31:53,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 2191 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-19 16:31:53,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2021-12-19 16:31:53,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 442. [2021-12-19 16:31:53,597 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 16:31:53,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 573 transitions. [2021-12-19 16:31:53,599 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 573 transitions. Word has length 93 [2021-12-19 16:31:53,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:53,599 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 573 transitions. [2021-12-19 16:31:53,599 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 16:31:53,599 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 573 transitions. [2021-12-19 16:31:53,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-19 16:31:53,600 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:53,601 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 16:31:53,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-19 16:31:53,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:53,801 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-19 16:31:53,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:53,802 INFO L85 PathProgramCache]: Analyzing trace with hash -438421481, now seen corresponding path program 3 times [2021-12-19 16:31:53,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:53,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396333146] [2021-12-19 16:31:53,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:53,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:53,849 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:53,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2004075795] [2021-12-19 16:31:53,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-19 16:31:53,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:53,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:53,851 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 16:31:53,880 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 16:31:57,697 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-19 16:31:57,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 16:31:57,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-19 16:31:57,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:57,867 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 16:31:57,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 16:31:58,077 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 16:31:58,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:31:58,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396333146] [2021-12-19 16:31:58,077 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:31:58,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004075795] [2021-12-19 16:31:58,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004075795] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 16:31:58,077 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 16:31:58,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-12-19 16:31:58,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541996904] [2021-12-19 16:31:58,078 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 16:31:58,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-19 16:31:58,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:31:58,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-19 16:31:58,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-19 16:31:58,079 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 16:31:58,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:31:58,271 INFO L93 Difference]: Finished difference Result 831 states and 1090 transitions. [2021-12-19 16:31:58,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-19 16:31:58,272 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 16:31:58,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:31:58,274 INFO L225 Difference]: With dead ends: 831 [2021-12-19 16:31:58,274 INFO L226 Difference]: Without dead ends: 456 [2021-12-19 16:31:58,275 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 16:31:58,276 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 27 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 16:31:58,276 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 16:31:58,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-12-19 16:31:58,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 444. [2021-12-19 16:31:58,290 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 16:31:58,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 577 transitions. [2021-12-19 16:31:58,292 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 577 transitions. Word has length 99 [2021-12-19 16:31:58,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:31:58,293 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 577 transitions. [2021-12-19 16:31:58,293 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 16:31:58,293 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 577 transitions. [2021-12-19 16:31:58,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-19 16:31:58,296 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:31:58,296 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 16:31:58,333 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 16:31:58,515 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 16:31:58,515 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 16:31:58,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:31:58,516 INFO L85 PathProgramCache]: Analyzing trace with hash 498755991, now seen corresponding path program 4 times [2021-12-19 16:31:58,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:31:58,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601055685] [2021-12-19 16:31:58,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:31:58,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:31:58,567 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:31:58,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1104841891] [2021-12-19 16:31:58,567 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-19 16:31:58,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:31:58,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:31:58,568 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 16:31:58,569 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 16:31:59,347 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-19 16:31:59,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 16:31:59,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 37 conjunts are in the unsatisfiable core [2021-12-19 16:31:59,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 16:31:59,601 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 16:31:59,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 16:32:00,079 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 16:32:00,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 16:32:00,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601055685] [2021-12-19 16:32:00,080 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-19 16:32:00,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104841891] [2021-12-19 16:32:00,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104841891] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 16:32:00,081 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-19 16:32:00,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 22 [2021-12-19 16:32:00,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736040598] [2021-12-19 16:32:00,081 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-19 16:32:00,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-19 16:32:00,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 16:32:00,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-19 16:32:00,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2021-12-19 16:32:00,083 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 16:32:02,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 16:32:02,675 INFO L93 Difference]: Finished difference Result 882 states and 1161 transitions. [2021-12-19 16:32:02,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-19 16:32:02,676 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 16:32:02,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 16:32:02,678 INFO L225 Difference]: With dead ends: 882 [2021-12-19 16:32:02,678 INFO L226 Difference]: Without dead ends: 460 [2021-12-19 16:32:02,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=418, Invalid=1064, Unknown=0, NotChecked=0, Total=1482 [2021-12-19 16:32:02,680 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 304 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2021-12-19 16:32:02,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 3414 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-19 16:32:02,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2021-12-19 16:32:02,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 448. [2021-12-19 16:32:02,693 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 16:32:02,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 585 transitions. [2021-12-19 16:32:02,695 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 585 transitions. Word has length 103 [2021-12-19 16:32:02,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 16:32:02,695 INFO L470 AbstractCegarLoop]: Abstraction has 448 states and 585 transitions. [2021-12-19 16:32:02,696 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 16:32:02,696 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 585 transitions. [2021-12-19 16:32:02,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-19 16:32:02,697 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 16:32:02,697 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 16:32:02,731 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 16:32:02,919 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 16:32:02,919 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 16:32:02,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 16:32:02,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1737192297, now seen corresponding path program 5 times [2021-12-19 16:32:02,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 16:32:02,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944675177] [2021-12-19 16:32:02,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 16:32:02,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 16:32:02,960 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-19 16:32:02,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [480880331] [2021-12-19 16:32:02,961 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-19 16:32:02,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 16:32:02,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 16:32:02,962 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 16:32:02,964 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