./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 13:42:48,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 13:42:48,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 13:42:48,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 13:42:48,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 13:42:48,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 13:42:48,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 13:42:48,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 13:42:48,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 13:42:48,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 13:42:48,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 13:42:48,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 13:42:48,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 13:42:48,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 13:42:48,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 13:42:48,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 13:42:48,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 13:42:48,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 13:42:48,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 13:42:48,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 13:42:48,628 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 13:42:48,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 13:42:48,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 13:42:48,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 13:42:48,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 13:42:48,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 13:42:48,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 13:42:48,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 13:42:48,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 13:42:48,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 13:42:48,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 13:42:48,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 13:42:48,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 13:42:48,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 13:42:48,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 13:42:48,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 13:42:48,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 13:42:48,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 13:42:48,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 13:42:48,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 13:42:48,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 13:42:48,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 13:42:48,649 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-23 13:42:48,681 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 13:42:48,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 13:42:48,682 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 13:42:48,682 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 13:42:48,683 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 13:42:48,683 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 13:42:48,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 13:42:48,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 13:42:48,684 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 13:42:48,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 13:42:48,684 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 13:42:48,684 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 13:42:48,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 13:42:48,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 13:42:48,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 13:42:48,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 13:42:48,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 13:42:48,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 13:42:48,686 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-23 13:42:48,687 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 13:42:48,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 13:42:48,688 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 13:42:48,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 13:42:48,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 13:42:48,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 13:42:48,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 13:42:48,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:42:48,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 13:42:48,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 13:42:48,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 13:42:48,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 13:42:48,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 13:42:48,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 13:42:48,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 [2022-07-23 13:42:48,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 13:42:48,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 13:42:48,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 13:42:48,932 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 13:42:48,933 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 13:42:48,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2022-07-23 13:42:49,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c62dac5ca/caf930d67e9c4759ba5bbb1d6b21d55e/FLAG20c06ec5a [2022-07-23 13:42:49,584 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 13:42:49,588 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2022-07-23 13:42:49,606 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c62dac5ca/caf930d67e9c4759ba5bbb1d6b21d55e/FLAG20c06ec5a [2022-07-23 13:42:49,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c62dac5ca/caf930d67e9c4759ba5bbb1d6b21d55e [2022-07-23 13:42:49,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 13:42:49,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 13:42:49,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 13:42:49,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 13:42:49,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 13:42:49,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:42:49" (1/1) ... [2022-07-23 13:42:49,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@347a6a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:42:49, skipping insertion in model container [2022-07-23 13:42:49,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:42:49" (1/1) ... [2022-07-23 13:42:49,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 13:42:50,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 13:42:50,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[33021,33034] [2022-07-23 13:42:50,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[49681,49694] [2022-07-23 13:42:50,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:42:50,550 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 13:42:50,572 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[33021,33034] [2022-07-23 13:42:50,630 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[49681,49694] [2022-07-23 13:42:50,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:42:50,689 INFO L208 MainTranslator]: Completed translation [2022-07-23 13:42:50,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:42:50 WrapperNode [2022-07-23 13:42:50,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 13:42:50,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 13:42:50,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 13:42:50,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 13:42:50,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:42:50" (1/1) ... [2022-07-23 13:42:50,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:42:50" (1/1) ... [2022-07-23 13:42:50,834 INFO L137 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1704 [2022-07-23 13:42:50,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 13:42:50,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 13:42:50,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 13:42:50,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 13:42:50,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:42:50" (1/1) ... [2022-07-23 13:42:50,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:42:50" (1/1) ... [2022-07-23 13:42:50,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:42:50" (1/1) ... [2022-07-23 13:42:50,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:42:50" (1/1) ... [2022-07-23 13:42:50,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:42:50" (1/1) ... [2022-07-23 13:42:50,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:42:50" (1/1) ... [2022-07-23 13:42:50,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:42:50" (1/1) ... [2022-07-23 13:42:51,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 13:42:51,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 13:42:51,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 13:42:51,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 13:42:51,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:42:50" (1/1) ... [2022-07-23 13:42:51,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:42:51,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:42:51,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 13:42:51,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 13:42:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 13:42:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-23 13:42:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-23 13:42:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 13:42:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 13:42:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 13:42:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 13:42:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 13:42:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 13:42:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 13:42:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-23 13:42:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 13:42:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 13:42:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 13:42:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 13:42:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 13:42:51,391 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 13:42:51,392 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 13:42:52,995 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 13:42:53,012 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 13:42:53,013 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2022-07-23 13:42:53,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:42:53 BoogieIcfgContainer [2022-07-23 13:42:53,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 13:42:53,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 13:42:53,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 13:42:53,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 13:42:53,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:42:49" (1/3) ... [2022-07-23 13:42:53,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed1482a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:42:53, skipping insertion in model container [2022-07-23 13:42:53,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:42:50" (2/3) ... [2022-07-23 13:42:53,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed1482a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:42:53, skipping insertion in model container [2022-07-23 13:42:53,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:42:53" (3/3) ... [2022-07-23 13:42:53,025 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-3.i [2022-07-23 13:42:53,039 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 13:42:53,040 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-07-23 13:42:53,105 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 13:42:53,111 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7e6ed946, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3498f3ab [2022-07-23 13:42:53,111 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-07-23 13:42:53,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 323 states, 299 states have (on average 1.7123745819397993) internal successors, (512), 314 states have internal predecessors, (512), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-23 13:42:53,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-23 13:42:53,135 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:42:53,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-23 13:42:53,136 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:42:53,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:42:53,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1126982839, now seen corresponding path program 1 times [2022-07-23 13:42:53,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:42:53,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348408669] [2022-07-23 13:42:53,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:42:53,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:42:53,252 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 13:42:53,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1898585943] [2022-07-23 13:42:53,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:42:53,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:42:53,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:42:53,260 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:42:53,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 13:42:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:42:53,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 13:42:53,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:42:53,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:42:53,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:42:53,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:42:53,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348408669] [2022-07-23 13:42:53,482 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 13:42:53,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898585943] [2022-07-23 13:42:53,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898585943] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:42:53,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:42:53,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:42:53,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181807278] [2022-07-23 13:42:53,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:42:53,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:42:53,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:42:53,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:42:53,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:42:53,530 INFO L87 Difference]: Start difference. First operand has 323 states, 299 states have (on average 1.7123745819397993) internal successors, (512), 314 states have internal predecessors, (512), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:42:53,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:42:53,699 INFO L93 Difference]: Finished difference Result 896 states and 1510 transitions. [2022-07-23 13:42:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:42:53,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-07-23 13:42:53,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:42:53,732 INFO L225 Difference]: With dead ends: 896 [2022-07-23 13:42:53,732 INFO L226 Difference]: Without dead ends: 521 [2022-07-23 13:42:53,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:42:53,743 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 314 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:42:53,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 861 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:42:53,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-07-23 13:42:53,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 341. [2022-07-23 13:42:53,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 315 states have (on average 1.3460317460317461) internal successors, (424), 332 states have internal predecessors, (424), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-23 13:42:53,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 456 transitions. [2022-07-23 13:42:53,808 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 456 transitions. Word has length 6 [2022-07-23 13:42:53,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:42:53,809 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 456 transitions. [2022-07-23 13:42:53,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:42:53,809 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 456 transitions. [2022-07-23 13:42:53,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-23 13:42:53,810 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:42:53,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-23 13:42:53,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 13:42:54,031 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 [2022-07-23 13:42:54,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:42:54,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:42:54,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1126331241, now seen corresponding path program 1 times [2022-07-23 13:42:54,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:42:54,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269289312] [2022-07-23 13:42:54,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:42:54,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:42:54,073 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 13:42:54,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162216635] [2022-07-23 13:42:54,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:42:54,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:42:54,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:42:54,078 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:42:54,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 13:42:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:42:54,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:42:54,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:42:54,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:42:54,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:42:54,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:42:54,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269289312] [2022-07-23 13:42:54,286 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 13:42:54,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162216635] [2022-07-23 13:42:54,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162216635] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:42:54,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:42:54,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:42:54,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226529094] [2022-07-23 13:42:54,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:42:54,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:42:54,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:42:54,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:42:54,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:42:54,289 INFO L87 Difference]: Start difference. First operand 341 states and 456 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:42:54,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:42:54,351 INFO L93 Difference]: Finished difference Result 522 states and 688 transitions. [2022-07-23 13:42:54,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:42:54,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-07-23 13:42:54,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:42:54,354 INFO L225 Difference]: With dead ends: 522 [2022-07-23 13:42:54,354 INFO L226 Difference]: Without dead ends: 519 [2022-07-23 13:42:54,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:42:54,356 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 308 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:42:54,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 719 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:42:54,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-07-23 13:42:54,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 345. [2022-07-23 13:42:54,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 319 states have (on average 1.3385579937304075) internal successors, (427), 336 states have internal predecessors, (427), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-23 13:42:54,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 459 transitions. [2022-07-23 13:42:54,374 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 459 transitions. Word has length 6 [2022-07-23 13:42:54,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:42:54,375 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 459 transitions. [2022-07-23 13:42:54,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:42:54,375 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 459 transitions. [2022-07-23 13:42:54,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-23 13:42:54,379 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:42:54,380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:42:54,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-23 13:42:54,607 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,SelfDestructingSolverStorable1 [2022-07-23 13:42:54,608 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:42:54,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:42:54,609 INFO L85 PathProgramCache]: Analyzing trace with hash 765811442, now seen corresponding path program 1 times [2022-07-23 13:42:54,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:42:54,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474954070] [2022-07-23 13:42:54,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:42:54,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:42:54,816 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 13:42:54,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777433827] [2022-07-23 13:42:54,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:42:54,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:42:54,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:42:54,819 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:42:54,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 13:42:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:42:55,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 2978 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:42:55,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:42:55,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:42:55,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:42:55,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:42:55,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474954070] [2022-07-23 13:42:55,902 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 13:42:55,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777433827] [2022-07-23 13:42:55,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777433827] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:42:55,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:42:55,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:42:55,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535919168] [2022-07-23 13:42:55,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:42:55,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:42:55,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:42:55,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:42:55,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:42:55,905 INFO L87 Difference]: Start difference. First operand 345 states and 459 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:42:55,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:42:55,970 INFO L93 Difference]: Finished difference Result 705 states and 943 transitions. [2022-07-23 13:42:55,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:42:55,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 103 [2022-07-23 13:42:55,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:42:55,973 INFO L225 Difference]: With dead ends: 705 [2022-07-23 13:42:55,973 INFO L226 Difference]: Without dead ends: 366 [2022-07-23 13:42:55,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:42:55,975 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 9 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:42:55,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 645 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:42:55,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-07-23 13:42:55,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 365. [2022-07-23 13:42:55,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 339 states have (on average 1.3185840707964602) internal successors, (447), 356 states have internal predecessors, (447), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-23 13:42:55,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 479 transitions. [2022-07-23 13:42:55,986 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 479 transitions. Word has length 103 [2022-07-23 13:42:55,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:42:55,986 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 479 transitions. [2022-07-23 13:42:55,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:42:55,987 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 479 transitions. [2022-07-23 13:42:55,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-23 13:42:55,990 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:42:55,990 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:42:56,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-23 13:42:56,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:42:56,216 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:42:56,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:42:56,216 INFO L85 PathProgramCache]: Analyzing trace with hash 525571696, now seen corresponding path program 1 times [2022-07-23 13:42:56,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:42:56,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454401288] [2022-07-23 13:42:56,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:42:56,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:42:56,410 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 13:42:56,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [533052530] [2022-07-23 13:42:56,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:42:56,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:42:56,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:42:56,414 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:42:56,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-23 13:42:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:42:57,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 2980 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:42:57,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:42:57,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:42:57,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:42:57,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:42:57,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454401288] [2022-07-23 13:42:57,551 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 13:42:57,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533052530] [2022-07-23 13:42:57,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533052530] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:42:57,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:42:57,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:42:57,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134674607] [2022-07-23 13:42:57,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:42:57,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:42:57,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:42:57,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:42:57,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:42:57,554 INFO L87 Difference]: Start difference. First operand 365 states and 479 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:42:57,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:42:57,651 INFO L93 Difference]: Finished difference Result 745 states and 983 transitions. [2022-07-23 13:42:57,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:42:57,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 103 [2022-07-23 13:42:57,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:42:57,654 INFO L225 Difference]: With dead ends: 745 [2022-07-23 13:42:57,658 INFO L226 Difference]: Without dead ends: 386 [2022-07-23 13:42:57,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:42:57,660 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 9 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:42:57,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 645 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:42:57,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-07-23 13:42:57,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 385. [2022-07-23 13:42:57,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 359 states have (on average 1.3008356545961002) internal successors, (467), 376 states have internal predecessors, (467), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-23 13:42:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 499 transitions. [2022-07-23 13:42:57,676 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 499 transitions. Word has length 103 [2022-07-23 13:42:57,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:42:57,676 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 499 transitions. [2022-07-23 13:42:57,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:42:57,677 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 499 transitions. [2022-07-23 13:42:57,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-23 13:42:57,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:42:57,679 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:42:57,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-23 13:42:57,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:42:57,907 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:42:57,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:42:57,908 INFO L85 PathProgramCache]: Analyzing trace with hash 919938482, now seen corresponding path program 1 times [2022-07-23 13:42:57,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:42:57,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468873292] [2022-07-23 13:42:57,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:42:57,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:42:58,124 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 13:42:58,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [251800662] [2022-07-23 13:42:58,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:42:58,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:42:58,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:42:58,128 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:42:58,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-23 13:42:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:42:59,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 2982 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:42:59,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:42:59,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:42:59,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:42:59,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:42:59,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468873292] [2022-07-23 13:42:59,299 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 13:42:59,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251800662] [2022-07-23 13:42:59,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251800662] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:42:59,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:42:59,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:42:59,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281688081] [2022-07-23 13:42:59,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:42:59,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:42:59,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:42:59,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:42:59,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:42:59,302 INFO L87 Difference]: Start difference. First operand 385 states and 499 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:42:59,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:42:59,364 INFO L93 Difference]: Finished difference Result 755 states and 983 transitions. [2022-07-23 13:42:59,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:42:59,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 103 [2022-07-23 13:42:59,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:42:59,367 INFO L225 Difference]: With dead ends: 755 [2022-07-23 13:42:59,367 INFO L226 Difference]: Without dead ends: 376 [2022-07-23 13:42:59,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:42:59,368 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 309 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:42:59,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 677 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:42:59,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-07-23 13:42:59,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 371. [2022-07-23 13:42:59,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 345 states have (on average 1.2927536231884058) internal successors, (446), 362 states have internal predecessors, (446), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-23 13:42:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 478 transitions. [2022-07-23 13:42:59,381 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 478 transitions. Word has length 103 [2022-07-23 13:42:59,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:42:59,381 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 478 transitions. [2022-07-23 13:42:59,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:42:59,382 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 478 transitions. [2022-07-23 13:42:59,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-23 13:42:59,383 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:42:59,383 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:42:59,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-23 13:42:59,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:42:59,612 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:42:59,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:42:59,612 INFO L85 PathProgramCache]: Analyzing trace with hash 6087360, now seen corresponding path program 1 times [2022-07-23 13:42:59,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:42:59,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456056159] [2022-07-23 13:42:59,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:42:59,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:42:59,785 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 13:42:59,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2101587216] [2022-07-23 13:42:59,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:42:59,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:42:59,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:42:59,788 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:42:59,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-23 13:43:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:43:01,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 2968 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:43:01,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:43:01,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:43:01,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:43:01,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:43:01,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456056159] [2022-07-23 13:43:01,168 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 13:43:01,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101587216] [2022-07-23 13:43:01,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101587216] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:43:01,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:43:01,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:43:01,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160896313] [2022-07-23 13:43:01,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:43:01,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:43:01,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:43:01,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:43:01,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:43:01,171 INFO L87 Difference]: Start difference. First operand 371 states and 478 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:43:01,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:43:01,252 INFO L93 Difference]: Finished difference Result 816 states and 1050 transitions. [2022-07-23 13:43:01,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:43:01,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 103 [2022-07-23 13:43:01,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:43:01,255 INFO L225 Difference]: With dead ends: 816 [2022-07-23 13:43:01,255 INFO L226 Difference]: Without dead ends: 451 [2022-07-23 13:43:01,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:43:01,257 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 302 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:43:01,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 972 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:43:01,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-07-23 13:43:01,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 357. [2022-07-23 13:43:01,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 331 states have (on average 1.283987915407855) internal successors, (425), 348 states have internal predecessors, (425), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-23 13:43:01,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 457 transitions. [2022-07-23 13:43:01,271 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 457 transitions. Word has length 103 [2022-07-23 13:43:01,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:43:01,303 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 457 transitions. [2022-07-23 13:43:01,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:43:01,304 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 457 transitions. [2022-07-23 13:43:01,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-23 13:43:01,305 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:43:01,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:43:01,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-23 13:43:01,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:43:01,516 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:43:01,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:43:01,517 INFO L85 PathProgramCache]: Analyzing trace with hash 2030023538, now seen corresponding path program 1 times [2022-07-23 13:43:01,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:43:01,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687022944] [2022-07-23 13:43:01,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:43:01,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:43:01,660 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 13:43:01,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997418059] [2022-07-23 13:43:01,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:43:01,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:43:01,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:43:01,668 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:43:01,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-23 13:43:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:43:03,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 2954 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:43:03,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:43:03,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:43:03,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:43:03,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:43:03,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687022944] [2022-07-23 13:43:03,296 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 13:43:03,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997418059] [2022-07-23 13:43:03,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997418059] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:43:03,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:43:03,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:43:03,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626837259] [2022-07-23 13:43:03,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:43:03,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:43:03,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:43:03,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:43:03,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:43:03,299 INFO L87 Difference]: Start difference. First operand 357 states and 457 transitions. Second operand has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:43:03,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:43:03,357 INFO L93 Difference]: Finished difference Result 543 states and 681 transitions. [2022-07-23 13:43:03,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 13:43:03,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 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 103 [2022-07-23 13:43:03,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:43:03,362 INFO L225 Difference]: With dead ends: 543 [2022-07-23 13:43:03,362 INFO L226 Difference]: Without dead ends: 542 [2022-07-23 13:43:03,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:43:03,363 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 199 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:43:03,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 1055 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:43:03,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-07-23 13:43:03,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 538. [2022-07-23 13:43:03,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 506 states have (on average 1.2529644268774704) internal successors, (634), 523 states have internal predecessors, (634), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-23 13:43:03,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 678 transitions. [2022-07-23 13:43:03,381 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 678 transitions. Word has length 103 [2022-07-23 13:43:03,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:43:03,381 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 678 transitions. [2022-07-23 13:43:03,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:43:03,382 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 678 transitions. [2022-07-23 13:43:03,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-23 13:43:03,383 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:43:03,383 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:43:03,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-23 13:43:03,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:43:03,600 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:43:03,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:43:03,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1493778997, now seen corresponding path program 1 times [2022-07-23 13:43:03,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:43:03,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355323012] [2022-07-23 13:43:03,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:43:03,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:43:03,792 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 13:43:03,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1310512777] [2022-07-23 13:43:03,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:43:03,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:43:03,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:43:03,794 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:43:03,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-23 13:43:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:43:05,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 2955 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:43:05,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:43:05,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:43:05,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:43:05,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:43:05,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355323012] [2022-07-23 13:43:05,441 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 13:43:05,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310512777] [2022-07-23 13:43:05,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310512777] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:43:05,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:43:05,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:43:05,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814109977] [2022-07-23 13:43:05,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:43:05,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:43:05,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:43:05,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:43:05,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:43:05,443 INFO L87 Difference]: Start difference. First operand 538 states and 678 transitions. Second operand has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:43:05,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:43:05,492 INFO L93 Difference]: Finished difference Result 538 states and 678 transitions. [2022-07-23 13:43:05,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:43:05,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 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 104 [2022-07-23 13:43:05,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:43:05,495 INFO L225 Difference]: With dead ends: 538 [2022-07-23 13:43:05,495 INFO L226 Difference]: Without dead ends: 536 [2022-07-23 13:43:05,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:43:05,497 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 202 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:43:05,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 652 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:43:05,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-07-23 13:43:05,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 535. [2022-07-23 13:43:05,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 505 states have (on average 1.2495049504950495) internal successors, (631), 520 states have internal predecessors, (631), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-23 13:43:05,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 675 transitions. [2022-07-23 13:43:05,517 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 675 transitions. Word has length 104 [2022-07-23 13:43:05,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:43:05,517 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 675 transitions. [2022-07-23 13:43:05,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:43:05,518 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 675 transitions. [2022-07-23 13:43:05,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-23 13:43:05,519 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:43:05,519 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:43:05,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-23 13:43:05,747 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,SelfDestructingSolverStorable7 [2022-07-23 13:43:05,747 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:43:05,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:43:05,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1366065166, now seen corresponding path program 1 times [2022-07-23 13:43:05,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:43:05,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440578982] [2022-07-23 13:43:05,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:43:05,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:43:05,893 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 13:43:05,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [341164987] [2022-07-23 13:43:05,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:43:05,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:43:05,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:43:05,898 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:43:05,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-23 13:43:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:43:07,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 2984 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 13:43:07,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:43:07,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:43:07,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:43:07,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:43:07,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440578982] [2022-07-23 13:43:07,804 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 13:43:07,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341164987] [2022-07-23 13:43:07,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341164987] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:43:07,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:43:07,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:43:07,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350820215] [2022-07-23 13:43:07,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:43:07,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:43:07,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:43:07,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:43:07,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:43:07,809 INFO L87 Difference]: Start difference. First operand 535 states and 675 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:43:07,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:43:07,878 INFO L93 Difference]: Finished difference Result 1001 states and 1288 transitions. [2022-07-23 13:43:07,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:43:07,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 108 [2022-07-23 13:43:07,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:43:07,881 INFO L225 Difference]: With dead ends: 1001 [2022-07-23 13:43:07,881 INFO L226 Difference]: Without dead ends: 613 [2022-07-23 13:43:07,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:43:07,886 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 138 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:43:07,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 703 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:43:07,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-07-23 13:43:07,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 609. [2022-07-23 13:43:07,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 569 states have (on average 1.2688927943760984) internal successors, (722), 594 states have internal predecessors, (722), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2022-07-23 13:43:07,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 786 transitions. [2022-07-23 13:43:07,921 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 786 transitions. Word has length 108 [2022-07-23 13:43:07,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:43:07,921 INFO L495 AbstractCegarLoop]: Abstraction has 609 states and 786 transitions. [2022-07-23 13:43:07,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:43:07,921 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 786 transitions. [2022-07-23 13:43:07,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-23 13:43:07,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:43:07,943 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:43:07,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-23 13:43:08,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:43:08,155 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:43:08,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:43:08,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1569027453, now seen corresponding path program 1 times [2022-07-23 13:43:08,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:43:08,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383372977] [2022-07-23 13:43:08,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:43:08,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:43:08,277 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 13:43:08,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1544579270] [2022-07-23 13:43:08,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:43:08,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:43:08,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:43:08,279 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:43:08,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-23 13:43:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:43:09,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 2121 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 13:43:09,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:43:09,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-23 13:43:09,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:43:09,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:43:09,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383372977] [2022-07-23 13:43:09,898 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 13:43:09,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544579270] [2022-07-23 13:43:09,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544579270] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:43:09,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:43:09,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:43:09,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150167403] [2022-07-23 13:43:09,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:43:09,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:43:09,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:43:09,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:43:09,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:43:09,901 INFO L87 Difference]: Start difference. First operand 609 states and 786 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:43:09,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:43:09,947 INFO L93 Difference]: Finished difference Result 1158 states and 1504 transitions. [2022-07-23 13:43:09,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:43:09,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 123 [2022-07-23 13:43:09,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:43:09,952 INFO L225 Difference]: With dead ends: 1158 [2022-07-23 13:43:09,952 INFO L226 Difference]: Without dead ends: 607 [2022-07-23 13:43:09,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:43:09,954 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 15 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:43:09,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 651 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:43:09,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-07-23 13:43:09,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2022-07-23 13:43:09,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 567 states have (on average 1.2680776014109347) internal successors, (719), 592 states have internal predecessors, (719), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2022-07-23 13:43:09,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 783 transitions. [2022-07-23 13:43:09,974 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 783 transitions. Word has length 123 [2022-07-23 13:43:09,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:43:09,974 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 783 transitions. [2022-07-23 13:43:09,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:43:09,974 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 783 transitions. [2022-07-23 13:43:09,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-23 13:43:09,975 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:43:09,975 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:43:10,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-23 13:43:10,183 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,SelfDestructingSolverStorable9 [2022-07-23 13:43:10,184 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:43:10,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:43:10,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1849143874, now seen corresponding path program 1 times [2022-07-23 13:43:10,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:43:10,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787610371] [2022-07-23 13:43:10,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:43:10,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:43:10,265 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 13:43:10,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [562082521] [2022-07-23 13:43:10,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:43:10,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:43:10,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:43:10,267 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:43:10,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-23 13:43:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:43:50,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 13:43:50,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:43:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-23 13:43:50,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:43:50,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:43:50,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787610371] [2022-07-23 13:43:50,313 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-23 13:43:50,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562082521] [2022-07-23 13:43:50,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562082521] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:43:50,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:43:50,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:43:50,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223490280] [2022-07-23 13:43:50,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:43:50,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:43:50,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:43:50,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:43:50,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:43:50,314 INFO L87 Difference]: Start difference. First operand 607 states and 783 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 13:43:50,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:43:50,400 INFO L93 Difference]: Finished difference Result 1165 states and 1523 transitions. [2022-07-23 13:43:50,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:43:50,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 138 [2022-07-23 13:43:50,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:43:50,405 INFO L225 Difference]: With dead ends: 1165 [2022-07-23 13:43:50,405 INFO L226 Difference]: Without dead ends: 610 [2022-07-23 13:43:50,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:43:50,407 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 2 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:43:50,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 983 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:43:50,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-07-23 13:43:50,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2022-07-23 13:43:50,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 569 states have (on average 1.2688927943760984) internal successors, (722), 595 states have internal predecessors, (722), 32 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2022-07-23 13:43:50,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 790 transitions. [2022-07-23 13:43:50,433 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 790 transitions. Word has length 138 [2022-07-23 13:43:50,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:43:50,434 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 790 transitions. [2022-07-23 13:43:50,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 13:43:50,434 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 790 transitions. [2022-07-23 13:43:50,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-23 13:43:50,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:43:50,437 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:43:50,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-23 13:43:50,637 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,SelfDestructingSolverStorable10 [2022-07-23 13:43:50,638 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:43:50,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:43:50,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1261986238, now seen corresponding path program 1 times [2022-07-23 13:43:50,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:43:50,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833289876] [2022-07-23 13:43:50,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:43:50,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:43:50,716 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-23 13:43:50,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [867824277] [2022-07-23 13:43:50,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:43:50,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:43:50,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:43:50,719 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:43:50,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process