/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_24-evilcollapse_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:41:25,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:41:25,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:41:25,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 10:41:25,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:41:25,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:41:25,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:41:25,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:41:25,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:41:25,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:41:25,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:41:25,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:41:25,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:41:25,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:41:25,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:41:25,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:41:25,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:41:25,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:41:25,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:41:25,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:41:25,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:41:25,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-09-16 10:41:25,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:41:25,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:41:25,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:41:25,112 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 10:41:25,136 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:41:25,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:41:25,137 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:41:25,137 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:41:25,138 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:41:25,138 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:41:25,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:41:25,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:41:25,138 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:41:25,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:41:25,139 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:41:25,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:41:25,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:41:25,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:41:25,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:41:25,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:41:25,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:41:25,145 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:41:25,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:41:25,146 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:41:25,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:41:25,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:41:25,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:41:25,146 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:41:25,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:41:25,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:41:25,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:41:25,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:41:25,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:41:25,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:41:25,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:41:25,149 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:41:25,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:41:25,149 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:41:25,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:41:25,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:41:25,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:41:25,416 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:41:25,417 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:41:25,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_24-evilcollapse_nr.i [2022-09-16 10:41:25,478 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd0484955/4cfbe3b86d34407da838da971fd1a934/FLAG03c9d6994 [2022-09-16 10:41:25,984 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:41:25,985 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_24-evilcollapse_nr.i [2022-09-16 10:41:26,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd0484955/4cfbe3b86d34407da838da971fd1a934/FLAG03c9d6994 [2022-09-16 10:41:26,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd0484955/4cfbe3b86d34407da838da971fd1a934 [2022-09-16 10:41:26,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:41:26,461 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:41:26,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:41:26,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:41:26,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:41:26,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:41:26" (1/1) ... [2022-09-16 10:41:26,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce24589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:41:26, skipping insertion in model container [2022-09-16 10:41:26,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:41:26" (1/1) ... [2022-09-16 10:41:26,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:41:26,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:41:26,908 WARN L1550 CHandler]: Possible shadowing of function new [2022-09-16 10:41:26,908 WARN L1550 CHandler]: Possible shadowing of function new [2022-09-16 10:41:26,908 WARN L1550 CHandler]: Possible shadowing of function new [2022-09-16 10:41:26,909 WARN L1550 CHandler]: Possible shadowing of function new [2022-09-16 10:41:26,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:41:26,940 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:41:27,003 WARN L1550 CHandler]: Possible shadowing of function new [2022-09-16 10:41:27,003 WARN L1550 CHandler]: Possible shadowing of function new [2022-09-16 10:41:27,003 WARN L1550 CHandler]: Possible shadowing of function new [2022-09-16 10:41:27,004 WARN L1550 CHandler]: Possible shadowing of function new [2022-09-16 10:41:27,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:41:27,065 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:41:27,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:41:27 WrapperNode [2022-09-16 10:41:27,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:41:27,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:41:27,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:41:27,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:41:27,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:41:27" (1/1) ... [2022-09-16 10:41:27,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:41:27" (1/1) ... [2022-09-16 10:41:27,151 INFO L138 Inliner]: procedures = 273, calls = 38, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 166 [2022-09-16 10:41:27,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:41:27,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:41:27,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:41:27,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:41:27,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:41:27" (1/1) ... [2022-09-16 10:41:27,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:41:27" (1/1) ... [2022-09-16 10:41:27,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:41:27" (1/1) ... [2022-09-16 10:41:27,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:41:27" (1/1) ... [2022-09-16 10:41:27,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:41:27" (1/1) ... [2022-09-16 10:41:27,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:41:27" (1/1) ... [2022-09-16 10:41:27,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:41:27" (1/1) ... [2022-09-16 10:41:27,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:41:27,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:41:27,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:41:27,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:41:27,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:41:27" (1/1) ... [2022-09-16 10:41:27,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:41:27,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:41:27,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 10:41:27,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 10:41:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-09-16 10:41:27,270 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-09-16 10:41:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:41:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-09-16 10:41:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:41:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:41:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:41:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 10:41:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 10:41:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:41:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-09-16 10:41:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:41:27,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:41:27,273 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 10:41:27,424 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:41:27,425 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:41:27,743 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:41:27,751 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:41:27,751 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-16 10:41:27,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:41:27 BoogieIcfgContainer [2022-09-16 10:41:27,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:41:27,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:41:27,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:41:27,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:41:27,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:41:26" (1/3) ... [2022-09-16 10:41:27,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a70e7b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:41:27, skipping insertion in model container [2022-09-16 10:41:27,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:41:27" (2/3) ... [2022-09-16 10:41:27,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a70e7b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:41:27, skipping insertion in model container [2022-09-16 10:41:27,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:41:27" (3/3) ... [2022-09-16 10:41:27,761 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_24-evilcollapse_nr.i [2022-09-16 10:41:27,768 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:41:27,779 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:41:27,779 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-09-16 10:41:27,780 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:41:27,907 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:41:27,951 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 249 places, 259 transitions, 528 flow [2022-09-16 10:41:28,673 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 23587 states, 23557 states have (on average 3.061637729761854) internal successors, (72123), 23586 states have internal predecessors, (72123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:28,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:41:28,699 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5de8d57e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:41:28,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 10:41:28,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 23587 states, 23557 states have (on average 3.061637729761854) internal successors, (72123), 23586 states have internal predecessors, (72123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:28,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-09-16 10:41:28,764 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:28,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:28,766 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:41:28,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:28,774 INFO L85 PathProgramCache]: Analyzing trace with hash -784437459, now seen corresponding path program 1 times [2022-09-16 10:41:28,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:28,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965968068] [2022-09-16 10:41:28,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:28,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:28,966 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:41:28,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109602796] [2022-09-16 10:41:28,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:28,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:28,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:41:28,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:41:28,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 10:41:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:29,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2022-09-16 10:41:29,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:41:29,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:29,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:41:29,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:29,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965968068] [2022-09-16 10:41:29,221 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:41:29,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109602796] [2022-09-16 10:41:29,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109602796] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:29,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:29,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:41:29,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962439130] [2022-09-16 10:41:29,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:29,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:41:29,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:29,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:41:29,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:41:29,310 INFO L87 Difference]: Start difference. First operand has 23587 states, 23557 states have (on average 3.061637729761854) internal successors, (72123), 23586 states have internal predecessors, (72123), 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) Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:29,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:29,765 INFO L93 Difference]: Finished difference Result 23646 states and 69191 transitions. [2022-09-16 10:41:29,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:41:29,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2022-09-16 10:41:29,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:29,962 INFO L225 Difference]: With dead ends: 23646 [2022-09-16 10:41:29,963 INFO L226 Difference]: Without dead ends: 23567 [2022-09-16 10:41:29,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:41:29,967 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 48 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:29,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 468 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:41:30,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23567 states. [2022-09-16 10:41:30,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23567 to 23559. [2022-09-16 10:41:30,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23559 states, 23521 states have (on average 2.931805620509332) internal successors, (68959), 23558 states have internal predecessors, (68959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:30,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23559 states to 23559 states and 68959 transitions. [2022-09-16 10:41:30,980 INFO L78 Accepts]: Start accepts. Automaton has 23559 states and 68959 transitions. Word has length 31 [2022-09-16 10:41:30,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:30,981 INFO L495 AbstractCegarLoop]: Abstraction has 23559 states and 68959 transitions. [2022-09-16 10:41:30,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:30,981 INFO L276 IsEmpty]: Start isEmpty. Operand 23559 states and 68959 transitions. [2022-09-16 10:41:30,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-09-16 10:41:30,983 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:30,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:31,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-09-16 10:41:31,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-09-16 10:41:31,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:41:31,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:31,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1452242165, now seen corresponding path program 1 times [2022-09-16 10:41:31,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:31,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259690539] [2022-09-16 10:41:31,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:31,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:31,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:31,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:31,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259690539] [2022-09-16 10:41:31,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259690539] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:31,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:31,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:41:31,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008554511] [2022-09-16 10:41:31,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:31,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:41:31,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:31,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:41:31,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:41:31,373 INFO L87 Difference]: Start difference. First operand 23559 states and 68959 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:31,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:31,765 INFO L93 Difference]: Finished difference Result 23641 states and 69043 transitions. [2022-09-16 10:41:31,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:41:31,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 32 [2022-09-16 10:41:31,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:31,954 INFO L225 Difference]: With dead ends: 23641 [2022-09-16 10:41:31,954 INFO L226 Difference]: Without dead ends: 23641 [2022-09-16 10:41:31,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:41:31,956 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 41 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:31,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 470 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:41:32,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23641 states. [2022-09-16 10:41:32,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23641 to 23563. [2022-09-16 10:41:32,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23563 states, 23525 states have (on average 2.9314771519659937) internal successors, (68963), 23562 states have internal predecessors, (68963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:32,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23563 states to 23563 states and 68963 transitions. [2022-09-16 10:41:32,666 INFO L78 Accepts]: Start accepts. Automaton has 23563 states and 68963 transitions. Word has length 32 [2022-09-16 10:41:32,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:32,666 INFO L495 AbstractCegarLoop]: Abstraction has 23563 states and 68963 transitions. [2022-09-16 10:41:32,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:32,666 INFO L276 IsEmpty]: Start isEmpty. Operand 23563 states and 68963 transitions. [2022-09-16 10:41:32,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-09-16 10:41:32,671 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:32,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:32,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:41:32,672 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:41:32,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:32,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1781092602, now seen corresponding path program 1 times [2022-09-16 10:41:32,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:32,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335956052] [2022-09-16 10:41:32,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:32,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:32,738 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:41:32,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1783568458] [2022-09-16 10:41:32,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:32,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:32,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:41:32,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:41:32,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 10:41:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:33,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 3 conjunts are in the unsatisfiable core [2022-09-16 10:41:33,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:41:33,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:33,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:41:33,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:33,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335956052] [2022-09-16 10:41:33,115 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:41:33,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783568458] [2022-09-16 10:41:33,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783568458] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:33,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:33,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:41:33,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864617999] [2022-09-16 10:41:33,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:33,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:41:33,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:33,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:41:33,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:41:33,118 INFO L87 Difference]: Start difference. First operand 23563 states and 68963 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:33,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:33,366 INFO L93 Difference]: Finished difference Result 23642 states and 69043 transitions. [2022-09-16 10:41:33,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:41:33,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 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 67 [2022-09-16 10:41:33,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:33,450 INFO L225 Difference]: With dead ends: 23642 [2022-09-16 10:41:33,450 INFO L226 Difference]: Without dead ends: 23642 [2022-09-16 10:41:33,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:41:33,452 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 7 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:33,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 697 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:41:33,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23642 states. [2022-09-16 10:41:33,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23642 to 23635. [2022-09-16 10:41:34,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23635 states, 23597 states have (on average 2.92558376064754) internal successors, (69035), 23634 states have internal predecessors, (69035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:34,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23635 states to 23635 states and 69035 transitions. [2022-09-16 10:41:34,168 INFO L78 Accepts]: Start accepts. Automaton has 23635 states and 69035 transitions. Word has length 67 [2022-09-16 10:41:34,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:34,169 INFO L495 AbstractCegarLoop]: Abstraction has 23635 states and 69035 transitions. [2022-09-16 10:41:34,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:34,169 INFO L276 IsEmpty]: Start isEmpty. Operand 23635 states and 69035 transitions. [2022-09-16 10:41:34,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-09-16 10:41:34,170 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:34,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:34,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 10:41:34,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-09-16 10:41:34,389 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:41:34,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:34,389 INFO L85 PathProgramCache]: Analyzing trace with hash 620704563, now seen corresponding path program 1 times [2022-09-16 10:41:34,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:34,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269647658] [2022-09-16 10:41:34,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:34,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:34,436 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:41:34,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1004875779] [2022-09-16 10:41:34,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:34,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:34,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:41:34,438 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:41:34,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 10:41:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:34,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 3 conjunts are in the unsatisfiable core [2022-09-16 10:41:34,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:41:34,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:34,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:41:34,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:34,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269647658] [2022-09-16 10:41:34,650 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:41:34,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004875779] [2022-09-16 10:41:34,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004875779] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:34,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:34,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:41:34,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672751741] [2022-09-16 10:41:34,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:34,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:41:34,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:34,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:41:34,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:41:34,653 INFO L87 Difference]: Start difference. First operand 23635 states and 69035 transitions. Second operand has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:34,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:34,890 INFO L93 Difference]: Finished difference Result 23634 states and 69033 transitions. [2022-09-16 10:41:34,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:41:34,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 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 68 [2022-09-16 10:41:34,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:34,965 INFO L225 Difference]: With dead ends: 23634 [2022-09-16 10:41:34,965 INFO L226 Difference]: Without dead ends: 23634 [2022-09-16 10:41:34,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:41:34,966 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 189 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:34,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 505 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:41:35,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23634 states. [2022-09-16 10:41:35,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23634 to 23634. [2022-09-16 10:41:35,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23634 states, 23597 states have (on average 2.925499004110692) internal successors, (69033), 23633 states have internal predecessors, (69033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:35,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23634 states to 23634 states and 69033 transitions. [2022-09-16 10:41:35,540 INFO L78 Accepts]: Start accepts. Automaton has 23634 states and 69033 transitions. Word has length 68 [2022-09-16 10:41:35,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:35,540 INFO L495 AbstractCegarLoop]: Abstraction has 23634 states and 69033 transitions. [2022-09-16 10:41:35,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:35,540 INFO L276 IsEmpty]: Start isEmpty. Operand 23634 states and 69033 transitions. [2022-09-16 10:41:35,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-09-16 10:41:35,541 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:35,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:35,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-09-16 10:41:35,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:35,743 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:41:35,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:35,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1850046175, now seen corresponding path program 1 times [2022-09-16 10:41:35,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:35,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823266367] [2022-09-16 10:41:35,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:35,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:35,768 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:41:35,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223100220] [2022-09-16 10:41:35,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:35,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:35,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:41:35,770 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:41:35,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 10:41:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:35,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:41:35,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:41:35,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:35,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:41:36,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:36,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:36,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823266367] [2022-09-16 10:41:36,020 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:41:36,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223100220] [2022-09-16 10:41:36,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223100220] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:41:36,020 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-09-16 10:41:36,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-09-16 10:41:36,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408503389] [2022-09-16 10:41:36,021 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-09-16 10:41:36,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 10:41:36,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:36,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 10:41:36,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:41:36,022 INFO L87 Difference]: Start difference. First operand 23634 states and 69033 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:36,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:36,352 INFO L93 Difference]: Finished difference Result 23726 states and 69125 transitions. [2022-09-16 10:41:36,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 10:41:36,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 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 73 [2022-09-16 10:41:36,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:36,414 INFO L225 Difference]: With dead ends: 23726 [2022-09-16 10:41:36,414 INFO L226 Difference]: Without dead ends: 23726 [2022-09-16 10:41:36,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:41:36,415 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 123 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:36,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1153 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:41:36,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23726 states. [2022-09-16 10:41:37,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23726 to 23724. [2022-09-16 10:41:37,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23724 states, 23687 states have (on average 2.9182674040612993) internal successors, (69125), 23723 states have internal predecessors, (69125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:37,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23724 states to 23724 states and 69125 transitions. [2022-09-16 10:41:37,192 INFO L78 Accepts]: Start accepts. Automaton has 23724 states and 69125 transitions. Word has length 73 [2022-09-16 10:41:37,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:37,192 INFO L495 AbstractCegarLoop]: Abstraction has 23724 states and 69125 transitions. [2022-09-16 10:41:37,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:37,192 INFO L276 IsEmpty]: Start isEmpty. Operand 23724 states and 69125 transitions. [2022-09-16 10:41:37,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-09-16 10:41:37,194 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:37,194 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-09-16 10:41:37,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-16 10:41:37,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:37,397 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:41:37,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:37,397 INFO L85 PathProgramCache]: Analyzing trace with hash 505126278, now seen corresponding path program 1 times [2022-09-16 10:41:37,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:37,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21752528] [2022-09-16 10:41:37,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:37,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:37,442 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:41:37,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2009877700] [2022-09-16 10:41:37,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:37,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:37,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:41:37,445 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:41:37,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 10:41:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:37,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 10:41:37,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:41:37,830 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:37,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:41:38,027 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:38,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:38,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21752528] [2022-09-16 10:41:38,028 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:41:38,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009877700] [2022-09-16 10:41:38,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009877700] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:41:38,028 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-09-16 10:41:38,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-09-16 10:41:38,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582941518] [2022-09-16 10:41:38,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-09-16 10:41:38,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-16 10:41:38,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:38,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-16 10:41:38,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-09-16 10:41:38,030 INFO L87 Difference]: Start difference. First operand 23724 states and 69125 transitions. Second operand has 14 states, 13 states have (on average 20.76923076923077) internal successors, (270), 14 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:38,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:38,489 INFO L93 Difference]: Finished difference Result 47253 states and 138049 transitions. [2022-09-16 10:41:38,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-16 10:41:38,490 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 20.76923076923077) internal successors, (270), 14 states have internal predecessors, (270), 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 149 [2022-09-16 10:41:38,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:38,631 INFO L225 Difference]: With dead ends: 47253 [2022-09-16 10:41:38,631 INFO L226 Difference]: Without dead ends: 47253 [2022-09-16 10:41:38,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=167, Invalid=295, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:41:38,632 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 945 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:38,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 1632 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:41:38,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47253 states. [2022-09-16 10:41:39,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47253 to 23723. [2022-09-16 10:41:39,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23723 states, 23687 states have (on average 2.9181829695613626) internal successors, (69123), 23722 states have internal predecessors, (69123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:39,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23723 states to 23723 states and 69123 transitions. [2022-09-16 10:41:39,473 INFO L78 Accepts]: Start accepts. Automaton has 23723 states and 69123 transitions. Word has length 149 [2022-09-16 10:41:39,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:39,473 INFO L495 AbstractCegarLoop]: Abstraction has 23723 states and 69123 transitions. [2022-09-16 10:41:39,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 20.76923076923077) internal successors, (270), 14 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:39,473 INFO L276 IsEmpty]: Start isEmpty. Operand 23723 states and 69123 transitions. [2022-09-16 10:41:39,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-09-16 10:41:39,475 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:39,475 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:39,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-09-16 10:41:39,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:39,687 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:41:39,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:39,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1429378977, now seen corresponding path program 2 times [2022-09-16 10:41:39,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:39,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229626426] [2022-09-16 10:41:39,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:39,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:39,736 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:41:39,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [718934120] [2022-09-16 10:41:39,736 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:41:39,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:39,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:41:39,738 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:41:39,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 10:41:39,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:41:39,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:41:39,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2022-09-16 10:41:39,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:41:40,051 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-09-16 10:41:40,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:41:40,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:40,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229626426] [2022-09-16 10:41:40,052 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:41:40,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718934120] [2022-09-16 10:41:40,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718934120] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:40,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:40,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:41:40,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233083315] [2022-09-16 10:41:40,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:40,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:41:40,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:40,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:41:40,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:41:40,054 INFO L87 Difference]: Start difference. First operand 23723 states and 69123 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:40,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:40,202 INFO L93 Difference]: Finished difference Result 23729 states and 69129 transitions. [2022-09-16 10:41:40,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:41:40,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 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 155 [2022-09-16 10:41:40,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:40,272 INFO L225 Difference]: With dead ends: 23729 [2022-09-16 10:41:40,272 INFO L226 Difference]: Without dead ends: 23729 [2022-09-16 10:41:40,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:41:40,273 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 7 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:40,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 682 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:41:40,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23729 states. [2022-09-16 10:41:40,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23729 to 23725. [2022-09-16 10:41:40,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23725 states, 23689 states have (on average 2.9180210224154672) internal successors, (69125), 23724 states have internal predecessors, (69125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:41,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23725 states to 23725 states and 69125 transitions. [2022-09-16 10:41:41,077 INFO L78 Accepts]: Start accepts. Automaton has 23725 states and 69125 transitions. Word has length 155 [2022-09-16 10:41:41,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:41,078 INFO L495 AbstractCegarLoop]: Abstraction has 23725 states and 69125 transitions. [2022-09-16 10:41:41,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:41,078 INFO L276 IsEmpty]: Start isEmpty. Operand 23725 states and 69125 transitions. [2022-09-16 10:41:41,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-09-16 10:41:41,094 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:41,094 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:41,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-16 10:41:41,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:41,308 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:41:41,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:41,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1361075661, now seen corresponding path program 1 times [2022-09-16 10:41:41,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:41,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327228283] [2022-09-16 10:41:41,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:41,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:41,343 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:41:41,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [903614203] [2022-09-16 10:41:41,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:41,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:41,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:41:41,345 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:41:41,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 10:41:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:41,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 8 conjunts are in the unsatisfiable core [2022-09-16 10:41:41,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:41:41,743 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:41,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:41:41,941 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:41,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:41,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327228283] [2022-09-16 10:41:41,942 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:41:41,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903614203] [2022-09-16 10:41:41,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903614203] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:41:41,942 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-09-16 10:41:41,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-09-16 10:41:41,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772486967] [2022-09-16 10:41:41,943 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-09-16 10:41:41,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-09-16 10:41:41,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:41,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-09-16 10:41:41,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-09-16 10:41:41,944 INFO L87 Difference]: Start difference. First operand 23725 states and 69125 transitions. Second operand has 16 states, 16 states have (on average 17.5625) internal successors, (281), 16 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:42,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:42,267 INFO L93 Difference]: Finished difference Result 24063 states and 69461 transitions. [2022-09-16 10:41:42,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 10:41:42,268 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 17.5625) internal successors, (281), 16 states have internal predecessors, (281), 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 156 [2022-09-16 10:41:42,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:42,333 INFO L225 Difference]: With dead ends: 24063 [2022-09-16 10:41:42,333 INFO L226 Difference]: Without dead ends: 24063 [2022-09-16 10:41:42,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=259, Invalid=497, Unknown=0, NotChecked=0, Total=756 [2022-09-16 10:41:42,334 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 314 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:42,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1508 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:41:42,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24063 states. [2022-09-16 10:41:42,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24063 to 24053. [2022-09-16 10:41:42,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24053 states, 24017 states have (on average 2.892159720198193) internal successors, (69461), 24052 states have internal predecessors, (69461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:43,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24053 states to 24053 states and 69461 transitions. [2022-09-16 10:41:43,043 INFO L78 Accepts]: Start accepts. Automaton has 24053 states and 69461 transitions. Word has length 156 [2022-09-16 10:41:43,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:43,043 INFO L495 AbstractCegarLoop]: Abstraction has 24053 states and 69461 transitions. [2022-09-16 10:41:43,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 17.5625) internal successors, (281), 16 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:43,044 INFO L276 IsEmpty]: Start isEmpty. Operand 24053 states and 69461 transitions. [2022-09-16 10:41:43,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-09-16 10:41:43,047 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:43,047 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:43,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-16 10:41:43,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:43,273 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:41:43,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:43,273 INFO L85 PathProgramCache]: Analyzing trace with hash -984629043, now seen corresponding path program 2 times [2022-09-16 10:41:43,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:43,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172020976] [2022-09-16 10:41:43,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:43,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:43,334 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:41:43,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1329852587] [2022-09-16 10:41:43,338 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:41:43,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:43,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:41:43,339 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:41:43,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-16 10:41:43,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:41:43,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:41:43,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjunts are in the unsatisfiable core [2022-09-16 10:41:43,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:41:43,929 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2022-09-16 10:41:43,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:41:43,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:43,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172020976] [2022-09-16 10:41:43,930 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:41:43,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329852587] [2022-09-16 10:41:43,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329852587] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:43,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:43,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:41:43,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810014315] [2022-09-16 10:41:43,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:43,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:41:43,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:43,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:41:43,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:41:43,935 INFO L87 Difference]: Start difference. First operand 24053 states and 69461 transitions. Second operand has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:44,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:44,068 INFO L93 Difference]: Finished difference Result 24052 states and 69460 transitions. [2022-09-16 10:41:44,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:41:44,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 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 320 [2022-09-16 10:41:44,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:44,119 INFO L225 Difference]: With dead ends: 24052 [2022-09-16 10:41:44,119 INFO L226 Difference]: Without dead ends: 24052 [2022-09-16 10:41:44,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:41:44,121 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 172 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:44,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 465 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:41:44,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24052 states. [2022-09-16 10:41:44,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24052 to 24052. [2022-09-16 10:41:44,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24052 states, 24017 states have (on average 2.892118083024524) internal successors, (69460), 24051 states have internal predecessors, (69460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:44,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24052 states to 24052 states and 69460 transitions. [2022-09-16 10:41:44,646 INFO L78 Accepts]: Start accepts. Automaton has 24052 states and 69460 transitions. Word has length 320 [2022-09-16 10:41:44,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:44,647 INFO L495 AbstractCegarLoop]: Abstraction has 24052 states and 69460 transitions. [2022-09-16 10:41:44,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:44,647 INFO L276 IsEmpty]: Start isEmpty. Operand 24052 states and 69460 transitions. [2022-09-16 10:41:44,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-09-16 10:41:44,653 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:44,654 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:44,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-16 10:41:44,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-09-16 10:41:44,868 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:41:44,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:44,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1717095368, now seen corresponding path program 1 times [2022-09-16 10:41:44,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:44,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965743564] [2022-09-16 10:41:44,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:44,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:44,919 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:41:44,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [64921851] [2022-09-16 10:41:44,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:44,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:44,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:41:44,921 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:41:44,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-09-16 10:41:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:45,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 1403 conjuncts, 16 conjunts are in the unsatisfiable core [2022-09-16 10:41:45,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:41:45,863 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 1 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:45,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:41:46,417 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 1 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:46,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:46,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965743564] [2022-09-16 10:41:46,418 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:41:46,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64921851] [2022-09-16 10:41:46,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64921851] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:41:46,418 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-09-16 10:41:46,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2022-09-16 10:41:46,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186231602] [2022-09-16 10:41:46,419 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-09-16 10:41:46,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-09-16 10:41:46,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:46,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-09-16 10:41:46,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2022-09-16 10:41:46,421 INFO L87 Difference]: Start difference. First operand 24052 states and 69460 transitions. Second operand has 32 states, 32 states have (on average 20.75) internal successors, (664), 32 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:47,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:47,150 INFO L93 Difference]: Finished difference Result 24734 states and 70132 transitions. [2022-09-16 10:41:47,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-09-16 10:41:47,151 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 20.75) internal successors, (664), 32 states have internal predecessors, (664), 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 375 [2022-09-16 10:41:47,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:47,223 INFO L225 Difference]: With dead ends: 24734 [2022-09-16 10:41:47,223 INFO L226 Difference]: Without dead ends: 24734 [2022-09-16 10:41:47,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 718 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1155, Invalid=2385, Unknown=0, NotChecked=0, Total=3540 [2022-09-16 10:41:47,225 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 729 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:47,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 2256 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:41:47,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24734 states. [2022-09-16 10:41:47,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24734 to 24708. [2022-09-16 10:41:47,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24708 states, 24673 states have (on average 2.84245936854051) internal successors, (70132), 24707 states have internal predecessors, (70132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:47,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24708 states to 24708 states and 70132 transitions. [2022-09-16 10:41:47,788 INFO L78 Accepts]: Start accepts. Automaton has 24708 states and 70132 transitions. Word has length 375 [2022-09-16 10:41:47,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:47,788 INFO L495 AbstractCegarLoop]: Abstraction has 24708 states and 70132 transitions. [2022-09-16 10:41:47,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 20.75) internal successors, (664), 32 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:47,788 INFO L276 IsEmpty]: Start isEmpty. Operand 24708 states and 70132 transitions. [2022-09-16 10:41:47,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2022-09-16 10:41:47,912 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:47,912 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:47,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-09-16 10:41:48,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-09-16 10:41:48,120 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:41:48,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:48,120 INFO L85 PathProgramCache]: Analyzing trace with hash 488779320, now seen corresponding path program 2 times [2022-09-16 10:41:48,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:48,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038141368] [2022-09-16 10:41:48,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:48,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:48,220 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:41:48,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2089369028] [2022-09-16 10:41:48,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:41:48,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:48,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:41:48,224 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:41:48,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-09-16 10:41:48,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:41:48,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:41:48,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 3 conjunts are in the unsatisfiable core [2022-09-16 10:41:48,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:41:48,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4321 trivial. 0 not checked. [2022-09-16 10:41:48,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:41:48,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:48,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038141368] [2022-09-16 10:41:48,700 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:41:48,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089369028] [2022-09-16 10:41:48,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089369028] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:41:48,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:41:48,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:41:48,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652926995] [2022-09-16 10:41:48,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:41:48,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:41:48,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:48,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:41:48,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:41:48,702 INFO L87 Difference]: Start difference. First operand 24708 states and 70132 transitions. Second operand has 4 states, 3 states have (on average 43.0) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:48,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:48,821 INFO L93 Difference]: Finished difference Result 24196 states and 68637 transitions. [2022-09-16 10:41:48,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:41:48,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 43.0) internal successors, (129), 4 states have internal predecessors, (129), 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 703 [2022-09-16 10:41:48,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:48,874 INFO L225 Difference]: With dead ends: 24196 [2022-09-16 10:41:48,874 INFO L226 Difference]: Without dead ends: 24196 [2022-09-16 10:41:48,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 700 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:41:48,875 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 210 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:48,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 913 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:41:48,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24196 states. [2022-09-16 10:41:49,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24196 to 24196. [2022-09-16 10:41:49,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24196 states, 24167 states have (on average 2.840112550171722) internal successors, (68637), 24195 states have internal predecessors, (68637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:49,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24196 states to 24196 states and 68637 transitions. [2022-09-16 10:41:49,379 INFO L78 Accepts]: Start accepts. Automaton has 24196 states and 68637 transitions. Word has length 703 [2022-09-16 10:41:49,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:49,380 INFO L495 AbstractCegarLoop]: Abstraction has 24196 states and 68637 transitions. [2022-09-16 10:41:49,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 43.0) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:49,381 INFO L276 IsEmpty]: Start isEmpty. Operand 24196 states and 68637 transitions. [2022-09-16 10:41:49,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2022-09-16 10:41:49,391 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:49,391 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:49,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-09-16 10:41:49,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-09-16 10:41:49,592 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:41:49,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:49,593 INFO L85 PathProgramCache]: Analyzing trace with hash 488810105, now seen corresponding path program 1 times [2022-09-16 10:41:49,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:49,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781466590] [2022-09-16 10:41:49,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:49,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:49,692 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:41:49,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1068892676] [2022-09-16 10:41:49,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:49,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:49,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:41:49,694 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:41:49,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-09-16 10:41:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:50,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 2734 conjuncts, 32 conjunts are in the unsatisfiable core [2022-09-16 10:41:50,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:41:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 4321 backedges. 1 proven. 4320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:51,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:41:52,690 INFO L134 CoverageAnalysis]: Checked inductivity of 4321 backedges. 1 proven. 4320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:52,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:52,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781466590] [2022-09-16 10:41:52,691 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:41:52,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068892676] [2022-09-16 10:41:52,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068892676] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:41:52,691 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-09-16 10:41:52,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 61 [2022-09-16 10:41:52,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136381770] [2022-09-16 10:41:52,692 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-09-16 10:41:52,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-09-16 10:41:52,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:52,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-09-16 10:41:52,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=960, Invalid=2700, Unknown=0, NotChecked=0, Total=3660 [2022-09-16 10:41:52,695 INFO L87 Difference]: Start difference. First operand 24196 states and 68637 transitions. Second operand has 61 states, 61 states have (on average 20.9672131147541) internal successors, (1279), 61 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:54,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:54,730 INFO L93 Difference]: Finished difference Result 25482 states and 69897 transitions. [2022-09-16 10:41:54,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-09-16 10:41:54,732 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 20.9672131147541) internal successors, (1279), 61 states have internal predecessors, (1279), 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 703 [2022-09-16 10:41:54,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:54,787 INFO L225 Difference]: With dead ends: 25482 [2022-09-16 10:41:54,788 INFO L226 Difference]: Without dead ends: 25482 [2022-09-16 10:41:54,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1462 GetRequests, 1342 SyntacticMatches, 3 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3062 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=4498, Invalid=9544, Unknown=0, NotChecked=0, Total=14042 [2022-09-16 10:41:54,790 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1623 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1623 SdHoareTripleChecker+Valid, 2608 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:54,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1623 Valid, 2608 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:41:54,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25482 states. [2022-09-16 10:41:55,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25482 to 25426. [2022-09-16 10:41:55,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25426 states, 25397 states have (on average 2.7521754537937553) internal successors, (69897), 25425 states have internal predecessors, (69897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:55,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25426 states to 25426 states and 69897 transitions. [2022-09-16 10:41:55,242 INFO L78 Accepts]: Start accepts. Automaton has 25426 states and 69897 transitions. Word has length 703 [2022-09-16 10:41:55,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:55,242 INFO L495 AbstractCegarLoop]: Abstraction has 25426 states and 69897 transitions. [2022-09-16 10:41:55,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 20.9672131147541) internal successors, (1279), 61 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:55,243 INFO L276 IsEmpty]: Start isEmpty. Operand 25426 states and 69897 transitions. [2022-09-16 10:41:55,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1319 [2022-09-16 10:41:55,260 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:55,261 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:55,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-09-16 10:41:55,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-09-16 10:41:55,475 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:41:55,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:55,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1034934093, now seen corresponding path program 2 times [2022-09-16 10:41:55,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:55,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283630897] [2022-09-16 10:41:55,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:55,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:55,629 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:41:55,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1459756568] [2022-09-16 10:41:55,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:41:55,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:55,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:41:55,646 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:41:55,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-09-16 10:41:56,915 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:41:56,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:41:56,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 5239 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:41:56,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:41:58,136 INFO L134 CoverageAnalysis]: Checked inductivity of 17866 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17865 trivial. 0 not checked. [2022-09-16 10:41:58,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:41:59,440 INFO L134 CoverageAnalysis]: Checked inductivity of 17866 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17865 trivial. 0 not checked. [2022-09-16 10:41:59,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:59,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283630897] [2022-09-16 10:41:59,441 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:41:59,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459756568] [2022-09-16 10:41:59,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459756568] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:41:59,441 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-09-16 10:41:59,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-09-16 10:41:59,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590118964] [2022-09-16 10:41:59,441 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-09-16 10:41:59,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 10:41:59,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:59,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 10:41:59,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:41:59,443 INFO L87 Difference]: Start difference. First operand 25426 states and 69897 transitions. Second operand has 8 states, 8 states have (on average 23.5) internal successors, (188), 8 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:41:59,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:59,602 INFO L93 Difference]: Finished difference Result 26678 states and 71206 transitions. [2022-09-16 10:41:59,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 10:41:59,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.5) internal successors, (188), 8 states have internal predecessors, (188), 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 1318 [2022-09-16 10:41:59,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:59,663 INFO L225 Difference]: With dead ends: 26678 [2022-09-16 10:41:59,664 INFO L226 Difference]: Without dead ends: 26678 [2022-09-16 10:41:59,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2638 GetRequests, 2628 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:41:59,664 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 283 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:59,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 771 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:41:59,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26678 states. [2022-09-16 10:42:00,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26678 to 26676. [2022-09-16 10:42:00,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26676 states, 26647 states have (on average 2.6721957443614666) internal successors, (71206), 26675 states have internal predecessors, (71206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:00,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26676 states to 26676 states and 71206 transitions. [2022-09-16 10:42:00,214 INFO L78 Accepts]: Start accepts. Automaton has 26676 states and 71206 transitions. Word has length 1318 [2022-09-16 10:42:00,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:00,215 INFO L495 AbstractCegarLoop]: Abstraction has 26676 states and 71206 transitions. [2022-09-16 10:42:00,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.5) internal successors, (188), 8 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:00,215 INFO L276 IsEmpty]: Start isEmpty. Operand 26676 states and 71206 transitions. [2022-09-16 10:42:00,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1319 [2022-09-16 10:42:00,227 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:00,227 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:00,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-09-16 10:42:00,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-09-16 10:42:00,434 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:42:00,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:00,434 INFO L85 PathProgramCache]: Analyzing trace with hash -262578959, now seen corresponding path program 1 times [2022-09-16 10:42:00,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:00,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495829483] [2022-09-16 10:42:00,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:00,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:00,569 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:42:00,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717636957] [2022-09-16 10:42:00,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:00,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:42:00,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:42:00,571 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:42:00,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-09-16 10:42:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:06,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 5331 conjuncts, 13 conjunts are in the unsatisfiable core [2022-09-16 10:42:06,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:42:07,402 INFO L134 CoverageAnalysis]: Checked inductivity of 19169 backedges. 0 proven. 1304 refuted. 0 times theorem prover too weak. 17865 trivial. 0 not checked. [2022-09-16 10:42:07,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:42:08,877 INFO L134 CoverageAnalysis]: Checked inductivity of 19169 backedges. 0 proven. 1304 refuted. 0 times theorem prover too weak. 17865 trivial. 0 not checked. [2022-09-16 10:42:08,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:08,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495829483] [2022-09-16 10:42:08,877 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:42:08,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717636957] [2022-09-16 10:42:08,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717636957] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:42:08,877 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-09-16 10:42:08,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-09-16 10:42:08,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004412798] [2022-09-16 10:42:08,878 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-09-16 10:42:08,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-16 10:42:08,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:08,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-16 10:42:08,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-09-16 10:42:08,880 INFO L87 Difference]: Start difference. First operand 26676 states and 71206 transitions. Second operand has 14 states, 13 states have (on average 18.46153846153846) internal successors, (240), 14 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:09,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:09,525 INFO L93 Difference]: Finished difference Result 26676 states and 71174 transitions. [2022-09-16 10:42:09,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:42:09,525 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 18.46153846153846) internal successors, (240), 14 states have internal predecessors, (240), 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 1318 [2022-09-16 10:42:09,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:09,576 INFO L225 Difference]: With dead ends: 26676 [2022-09-16 10:42:09,576 INFO L226 Difference]: Without dead ends: 26676 [2022-09-16 10:42:09,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2650 GetRequests, 2622 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=231, Invalid=639, Unknown=0, NotChecked=0, Total=870 [2022-09-16 10:42:09,577 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 915 mSDsluCounter, 1915 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:09,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 2193 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:42:09,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26676 states. [2022-09-16 10:42:09,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26676 to 26675. [2022-09-16 10:42:10,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26675 states, 26647 states have (on average 2.6709948587082972) internal successors, (71174), 26674 states have internal predecessors, (71174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:10,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26675 states to 26675 states and 71174 transitions. [2022-09-16 10:42:10,086 INFO L78 Accepts]: Start accepts. Automaton has 26675 states and 71174 transitions. Word has length 1318 [2022-09-16 10:42:10,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:10,087 INFO L495 AbstractCegarLoop]: Abstraction has 26675 states and 71174 transitions. [2022-09-16 10:42:10,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 18.46153846153846) internal successors, (240), 14 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:10,087 INFO L276 IsEmpty]: Start isEmpty. Operand 26675 states and 71174 transitions. [2022-09-16 10:42:10,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1361 [2022-09-16 10:42:10,099 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:10,100 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:10,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-09-16 10:42:10,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-09-16 10:42:10,305 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:42:10,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:10,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1240859854, now seen corresponding path program 1 times [2022-09-16 10:42:10,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:10,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165665461] [2022-09-16 10:42:10,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:10,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:10,454 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:42:10,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [637857685] [2022-09-16 10:42:10,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:10,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:42:10,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:42:10,456 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:42:10,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-09-16 10:42:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:42:23,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 5499 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 10:42:23,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:42:24,591 INFO L134 CoverageAnalysis]: Checked inductivity of 20475 backedges. 2610 proven. 0 refuted. 0 times theorem prover too weak. 17865 trivial. 0 not checked. [2022-09-16 10:42:24,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:42:24,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:42:24,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165665461] [2022-09-16 10:42:24,591 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:42:24,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637857685] [2022-09-16 10:42:24,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637857685] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:42:24,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:42:24,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 10:42:24,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58573202] [2022-09-16 10:42:24,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:42:24,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 10:42:24,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:42:24,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 10:42:24,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:42:24,594 INFO L87 Difference]: Start difference. First operand 26675 states and 71174 transitions. Second operand has 11 states, 10 states have (on average 17.1) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:24,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:42:24,965 INFO L93 Difference]: Finished difference Result 26674 states and 71117 transitions. [2022-09-16 10:42:24,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-09-16 10:42:24,965 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 17.1) internal successors, (171), 11 states have internal predecessors, (171), 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 1360 [2022-09-16 10:42:24,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:42:25,039 INFO L225 Difference]: With dead ends: 26674 [2022-09-16 10:42:25,040 INFO L226 Difference]: Without dead ends: 26674 [2022-09-16 10:42:25,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1367 GetRequests, 1350 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2022-09-16 10:42:25,040 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 602 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:42:25,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 1503 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:42:25,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26674 states. [2022-09-16 10:42:25,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26674 to 26674. [2022-09-16 10:42:25,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26674 states, 26647 states have (on average 2.6688557811385896) internal successors, (71117), 26673 states have internal predecessors, (71117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:25,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26674 states to 26674 states and 71117 transitions. [2022-09-16 10:42:25,657 INFO L78 Accepts]: Start accepts. Automaton has 26674 states and 71117 transitions. Word has length 1360 [2022-09-16 10:42:25,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:42:25,658 INFO L495 AbstractCegarLoop]: Abstraction has 26674 states and 71117 transitions. [2022-09-16 10:42:25,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 17.1) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:42:25,658 INFO L276 IsEmpty]: Start isEmpty. Operand 26674 states and 71117 transitions. [2022-09-16 10:42:25,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2606 [2022-09-16 10:42:25,692 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:42:25,693 INFO L195 NwaCegarLoop]: trace histogram [63, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:42:25,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-09-16 10:42:25,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:42:25,893 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:42:25,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:42:25,894 INFO L85 PathProgramCache]: Analyzing trace with hash 345575117, now seen corresponding path program 2 times [2022-09-16 10:42:25,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:42:25,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012828654] [2022-09-16 10:42:25,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:42:25,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:42:26,161 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:42:26,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [432478142] [2022-09-16 10:42:26,162 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:42:26,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:42:26,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:42:26,164 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:42:26,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-09-16 10:43:21,704 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:43:21,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:43:21,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 10558 conjuncts, 22 conjunts are in the unsatisfiable core [2022-09-16 10:43:22,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:43:27,315 INFO L134 CoverageAnalysis]: Checked inductivity of 77817 backedges. 25126 proven. 25454 refuted. 0 times theorem prover too weak. 27237 trivial. 0 not checked. [2022-09-16 10:43:27,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:44:37,489 INFO L134 CoverageAnalysis]: Checked inductivity of 77817 backedges. 41982 proven. 62 refuted. 0 times theorem prover too weak. 35773 trivial. 0 not checked. [2022-09-16 10:44:37,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:37,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012828654] [2022-09-16 10:44:37,490 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:44:37,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432478142] [2022-09-16 10:44:37,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432478142] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:44:37,490 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-09-16 10:44:37,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8] total 21 [2022-09-16 10:44:37,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825663891] [2022-09-16 10:44:37,491 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-09-16 10:44:37,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:44:37,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:37,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:44:37,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:44:37,494 INFO L87 Difference]: Start difference. First operand 26674 states and 71117 transitions. Second operand has 22 states, 21 states have (on average 20.047619047619047) internal successors, (421), 22 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:38,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:38,372 INFO L93 Difference]: Finished difference Result 26673 states and 71089 transitions. [2022-09-16 10:44:38,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 10:44:38,373 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 20.047619047619047) internal successors, (421), 22 states have internal predecessors, (421), 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 2605 [2022-09-16 10:44:38,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:38,430 INFO L225 Difference]: With dead ends: 26673 [2022-09-16 10:44:38,431 INFO L226 Difference]: Without dead ends: 26673 [2022-09-16 10:44:38,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5239 GetRequests, 5196 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=456, Invalid=1524, Unknown=0, NotChecked=0, Total=1980 [2022-09-16 10:44:38,432 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1008 mSDsluCounter, 2290 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 2562 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 115 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:38,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 2562 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 236 Invalid, 0 Unknown, 115 Unchecked, 0.2s Time] [2022-09-16 10:44:38,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26673 states. [2022-09-16 10:44:38,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26673 to 26673. [2022-09-16 10:44:38,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26673 states, 26647 states have (on average 2.667805006192067) internal successors, (71089), 26672 states have internal predecessors, (71089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:38,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26673 states to 26673 states and 71089 transitions. [2022-09-16 10:44:38,946 INFO L78 Accepts]: Start accepts. Automaton has 26673 states and 71089 transitions. Word has length 2605 [2022-09-16 10:44:38,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:38,947 INFO L495 AbstractCegarLoop]: Abstraction has 26673 states and 71089 transitions. [2022-09-16 10:44:38,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 20.047619047619047) internal successors, (421), 22 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:38,947 INFO L276 IsEmpty]: Start isEmpty. Operand 26673 states and 71089 transitions. [2022-09-16 10:44:39,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3811 [2022-09-16 10:44:39,019 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:39,019 INFO L195 NwaCegarLoop]: trace histogram [90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:39,220 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forcibly destroying the process [2022-09-16 10:44:39,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-09-16 10:44:39,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-09-16 10:44:39,224 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:44:39,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:39,232 INFO L85 PathProgramCache]: Analyzing trace with hash 2122701357, now seen corresponding path program 3 times [2022-09-16 10:44:39,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:39,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074198923] [2022-09-16 10:44:39,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:39,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:39,592 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:44:39,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979796617] [2022-09-16 10:44:39,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-09-16 10:44:39,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:39,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:44:39,597 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:44:39,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-09-16 10:44:43,213 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-09-16 10:44:43,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:44:43,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 8 conjunts are in the unsatisfiable core [2022-09-16 10:44:43,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:44:46,934 INFO L134 CoverageAnalysis]: Checked inductivity of 164526 backedges. 0 proven. 110931 refuted. 0 times theorem prover too weak. 53595 trivial. 0 not checked. [2022-09-16 10:44:46,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:44:52,221 INFO L134 CoverageAnalysis]: Checked inductivity of 164526 backedges. 0 proven. 110931 refuted. 0 times theorem prover too weak. 53595 trivial. 0 not checked. [2022-09-16 10:44:52,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:44:52,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074198923] [2022-09-16 10:44:52,222 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:44:52,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979796617] [2022-09-16 10:44:52,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979796617] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:44:52,222 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-09-16 10:44:52,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-09-16 10:44:52,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357766995] [2022-09-16 10:44:52,223 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-09-16 10:44:52,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-09-16 10:44:52,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:44:52,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-09-16 10:44:52,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-09-16 10:44:52,229 INFO L87 Difference]: Start difference. First operand 26673 states and 71089 transitions. Second operand has 16 states, 16 states have (on average 26.0) internal successors, (416), 16 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:52,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:44:52,646 INFO L93 Difference]: Finished difference Result 31657 states and 76077 transitions. [2022-09-16 10:44:52,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 10:44:52,647 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 26.0) internal successors, (416), 16 states have internal predecessors, (416), 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 3810 [2022-09-16 10:44:52,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:44:52,729 INFO L225 Difference]: With dead ends: 31657 [2022-09-16 10:44:52,729 INFO L226 Difference]: Without dead ends: 31657 [2022-09-16 10:44:52,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7630 GetRequests, 7604 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=259, Invalid=497, Unknown=0, NotChecked=0, Total=756 [2022-09-16 10:44:52,730 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 400 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:44:52,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 1700 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:44:52,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31657 states. [2022-09-16 10:44:53,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31657 to 31657. [2022-09-16 10:44:53,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31657 states, 31631 states have (on average 2.4051405266984918) internal successors, (76077), 31656 states have internal predecessors, (76077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:53,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31657 states to 31657 states and 76077 transitions. [2022-09-16 10:44:53,274 INFO L78 Accepts]: Start accepts. Automaton has 31657 states and 76077 transitions. Word has length 3810 [2022-09-16 10:44:53,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:44:53,276 INFO L495 AbstractCegarLoop]: Abstraction has 31657 states and 76077 transitions. [2022-09-16 10:44:53,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 26.0) internal successors, (416), 16 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:44:53,277 INFO L276 IsEmpty]: Start isEmpty. Operand 31657 states and 76077 transitions. [2022-09-16 10:44:53,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8795 [2022-09-16 10:44:53,629 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:44:53,631 INFO L195 NwaCegarLoop]: trace histogram [210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 210, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:44:53,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-09-16 10:44:53,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-09-16 10:44:53,832 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:44:53,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:44:53,833 INFO L85 PathProgramCache]: Analyzing trace with hash -984338451, now seen corresponding path program 4 times [2022-09-16 10:44:53,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:44:53,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063938905] [2022-09-16 10:44:53,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:44:53,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:44:54,600 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:44:54,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1835226451] [2022-09-16 10:44:54,601 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-09-16 10:44:54,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:44:54,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:44:54,602 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:44:54,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-09-16 10:45:01,705 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-09-16 10:45:01,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:45:01,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 31961 conjuncts, 16 conjunts are in the unsatisfiable core [2022-09-16 10:45:01,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:45:12,698 INFO L134 CoverageAnalysis]: Checked inductivity of 901558 backedges. 0 proven. 776503 refuted. 0 times theorem prover too weak. 125055 trivial. 0 not checked. [2022-09-16 10:45:12,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:45:25,757 INFO L134 CoverageAnalysis]: Checked inductivity of 901558 backedges. 0 proven. 776503 refuted. 0 times theorem prover too weak. 125055 trivial. 0 not checked. [2022-09-16 10:45:25,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:45:25,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063938905] [2022-09-16 10:45:25,757 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-09-16 10:45:25,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835226451] [2022-09-16 10:45:25,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835226451] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:45:25,757 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-09-16 10:45:25,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 21 [2022-09-16 10:45:25,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775016919] [2022-09-16 10:45:25,759 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-09-16 10:45:25,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-16 10:45:25,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:45:25,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-16 10:45:25,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:45:25,764 INFO L87 Difference]: Start difference. First operand 31657 states and 76077 transitions. Second operand has 21 states, 21 states have (on average 27.952380952380953) internal successors, (587), 21 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:26,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:45:26,259 INFO L93 Difference]: Finished difference Result 35395 states and 79818 transitions. [2022-09-16 10:45:26,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-16 10:45:26,259 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 27.952380952380953) internal successors, (587), 21 states have internal predecessors, (587), 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 8794 [2022-09-16 10:45:26,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:45:26,319 INFO L225 Difference]: With dead ends: 35395 [2022-09-16 10:45:26,320 INFO L226 Difference]: Without dead ends: 35395 [2022-09-16 10:45:26,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17604 GetRequests, 17556 SyntacticMatches, 11 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=498, Invalid=984, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 10:45:26,321 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 574 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:45:26,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 1569 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:45:26,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35395 states. [2022-09-16 10:45:26,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35395 to 35395. [2022-09-16 10:45:26,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35395 states, 35369 states have (on average 2.256721988181741) internal successors, (79818), 35394 states have internal predecessors, (79818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:26,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35395 states to 35395 states and 79818 transitions. [2022-09-16 10:45:26,922 INFO L78 Accepts]: Start accepts. Automaton has 35395 states and 79818 transitions. Word has length 8794 [2022-09-16 10:45:26,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:45:26,927 INFO L495 AbstractCegarLoop]: Abstraction has 35395 states and 79818 transitions. [2022-09-16 10:45:26,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 27.952380952380953) internal successors, (587), 21 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:45:26,927 INFO L276 IsEmpty]: Start isEmpty. Operand 35395 states and 79818 transitions. [2022-09-16 10:45:27,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12533 [2022-09-16 10:45:27,899 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:45:27,902 INFO L195 NwaCegarLoop]: trace histogram [300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 300, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:45:27,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-09-16 10:45:28,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-09-16 10:45:28,103 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:45:28,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:45:28,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1358334403, now seen corresponding path program 5 times [2022-09-16 10:45:28,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:45:28,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938917407] [2022-09-16 10:45:28,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:45:28,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:45:29,200 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-09-16 10:45:29,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857642680] [2022-09-16 10:45:29,201 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-09-16 10:45:29,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:45:29,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:45:29,202 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:45:29,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process Received shutdown request... [2022-09-16 10:55:24,385 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-16 10:55:24,386 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-16 10:55:25,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-09-16 10:55:25,586 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forcibly destroying the process [2022-09-16 10:55:25,614 ERROR L245 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2022-09-16 10:55:25,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 137 [2022-09-16 10:55:25,618 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-09-16 10:55:25,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-09-16 10:55:25,619 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 12533 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2022-09-16 10:55:25,620 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-09-16 10:55:25,620 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-09-16 10:55:25,620 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-09-16 10:55:25,620 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-09-16 10:55:25,620 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-09-16 10:55:25,620 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-09-16 10:55:25,620 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-09-16 10:55:25,621 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2022-09-16 10:55:25,621 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2022-09-16 10:55:25,621 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2022-09-16 10:55:25,621 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-09-16 10:55:25,621 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 20 remaining) [2022-09-16 10:55:25,621 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-09-16 10:55:25,621 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-09-16 10:55:25,621 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-09-16 10:55:25,621 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-09-16 10:55:25,621 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-09-16 10:55:25,622 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-09-16 10:55:25,622 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-09-16 10:55:25,624 INFO L444 BasicCegarLoop]: Path program histogram: [5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-09-16 10:55:25,629 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 10:55:25,629 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 10:55:25,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 10:55:25 BasicIcfg [2022-09-16 10:55:25,631 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 10:55:25,632 INFO L158 Benchmark]: Toolchain (without parser) took 839170.81ms. Allocated memory was 170.9MB in the beginning and 6.0GB in the end (delta: 5.8GB). Free memory was 113.5MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-09-16 10:55:25,632 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 170.9MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 10:55:25,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.95ms. Allocated memory was 170.9MB in the beginning and 205.5MB in the end (delta: 34.6MB). Free memory was 113.3MB in the beginning and 160.8MB in the end (delta: -47.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-09-16 10:55:25,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.26ms. Allocated memory is still 205.5MB. Free memory was 160.8MB in the beginning and 158.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:55:25,632 INFO L158 Benchmark]: Boogie Preprocessor took 59.39ms. Allocated memory is still 205.5MB. Free memory was 157.7MB in the beginning and 156.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 10:55:25,633 INFO L158 Benchmark]: RCFGBuilder took 541.11ms. Allocated memory is still 205.5MB. Free memory was 156.0MB in the beginning and 135.3MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-09-16 10:55:25,633 INFO L158 Benchmark]: TraceAbstraction took 837875.86ms. Allocated memory was 205.5MB in the beginning and 6.0GB in the end (delta: 5.7GB). Free memory was 134.2MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-09-16 10:55:25,634 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 170.9MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 603.95ms. Allocated memory was 170.9MB in the beginning and 205.5MB in the end (delta: 34.6MB). Free memory was 113.3MB in the beginning and 160.8MB in the end (delta: -47.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 85.26ms. Allocated memory is still 205.5MB. Free memory was 160.8MB in the beginning and 158.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 59.39ms. Allocated memory is still 205.5MB. Free memory was 157.7MB in the beginning and 156.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 541.11ms. Allocated memory is still 205.5MB. Free memory was 156.0MB in the beginning and 135.3MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 837875.86ms. Allocated memory was 205.5MB in the beginning and 6.0GB in the end (delta: 5.7GB). Free memory was 134.2MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 1047]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was analyzing trace of length 12533 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1052]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was analyzing trace of length 12533 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1052]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was analyzing trace of length 12533 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1047]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was analyzing trace of length 12533 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1063]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was analyzing trace of length 12533 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1060]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was analyzing trace of length 12533 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1063]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was analyzing trace of length 12533 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1060]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was analyzing trace of length 12533 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1063]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was analyzing trace of length 12533 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1063]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while NwaCegarLoop was analyzing trace of length 12533 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1070]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while NwaCegarLoop was analyzing trace of length 12533 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1069]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while NwaCegarLoop was analyzing trace of length 12533 with TraceHistMax 300,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 291 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 837.7s, OverallIterations: 19, TraceHistogramMax: 300, PathProgramHistogramMax: 5, EmptinessCheckTime: 1.7s, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8190 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8190 mSDsluCounter, 23655 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 115 IncrementalHoareTripleChecker+Unchecked, 19287 mSDsCounter, 295 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2432 IncrementalHoareTripleChecker+Invalid, 2842 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 295 mSolverCounterUnsat, 4514 mSDtfsCounter, 2432 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41486 GetRequests, 41063 SyntacticMatches, 14 SemanticMatches, 409 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4999 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35395occurred in iteration=18, InterpolantAutomatonStates: 337, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 11.5s AutomataMinimizationTime, 18 MinimizatonAttempts, 23724 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 4.4s SsaConstructionTime, 77.3s SatisfiabilityAnalysisTime, 121.1s InterpolantComputationTime, 22037 NumberOfCodeBlocks, 16135 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 41310 ConstructedInterpolants, 2585 QuantifiedInterpolants, 172684 SizeOfPredicates, 106 NumberOfNonLiveVariables, 66067 ConjunctsInSsa, 158 ConjunctsInUnsatCore, 28 InterpolantComputations, 8 PerfectInterpolantSequences, 584672/2398530 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown