./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 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_JEN_test1-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:01:43,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:01:43,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:01:43,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:01:43,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:01:43,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:01:43,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:01:43,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:01:43,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:01:43,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:01:43,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:01:43,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:01:43,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:01:43,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:01:43,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:01:43,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:01:43,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:01:43,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:01:43,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:01:43,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:01:43,182 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:01:43,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:01:43,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:01:43,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:01:43,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:01:43,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:01:43,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:01:43,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:01:43,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:01:43,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:01:43,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:01:43,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:01:43,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:01:43,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:01:43,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:01:43,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:01:43,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:01:43,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:01:43,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:01:43,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:01:43,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:01:43,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:01:43,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-22 01:01:43,222 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:01:43,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:01:43,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:01:43,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:01:43,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 01:01:43,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 01:01:43,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:01:43,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:01:43,224 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:01:43,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:01:43,225 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 01:01:43,225 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:01:43,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:01:43,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 01:01:43,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:01:43,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 01:01:43,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 01:01:43,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 01:01:43,234 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 01:01:43,234 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 01:01:43,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:01:43,235 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:01:43,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 01:01:43,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:01:43,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:01:43,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 01:01:43,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 01:01:43,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:01:43,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 01:01:43,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 01:01:43,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:01:43,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 01:01:43,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 01:01:43,237 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 [2022-07-22 01:01:43,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:01:43,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:01:43,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:01:43,522 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:01:43,522 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:01:43,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2022-07-22 01:01:43,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85eefd528/f1d4be27d91f4ad39af43038e0f37bdf/FLAG8c8079c8d [2022-07-22 01:01:44,033 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:01:44,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2022-07-22 01:01:44,060 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85eefd528/f1d4be27d91f4ad39af43038e0f37bdf/FLAG8c8079c8d [2022-07-22 01:01:44,075 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85eefd528/f1d4be27d91f4ad39af43038e0f37bdf [2022-07-22 01:01:44,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:01:44,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:01:44,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:01:44,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:01:44,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:01:44,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:01:44" (1/1) ... [2022-07-22 01:01:44,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64b4d3bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:01:44, skipping insertion in model container [2022-07-22 01:01:44,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:01:44" (1/1) ... [2022-07-22 01:01:44,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:01:44,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:01:44,395 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_JEN_test1-1.i[33021,33034] [2022-07-22 01:01:44,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:01:44,485 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:01:44,518 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_JEN_test1-1.i[33021,33034] [2022-07-22 01:01:44,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:01:44,596 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:01:44,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:01:44 WrapperNode [2022-07-22 01:01:44,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:01:44,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:01:44,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:01:44,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:01:44,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:01:44" (1/1) ... [2022-07-22 01:01:44,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:01:44" (1/1) ... [2022-07-22 01:01:44,681 INFO L137 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 627 [2022-07-22 01:01:44,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:01:44,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:01:44,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:01:44,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:01:44,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:01:44" (1/1) ... [2022-07-22 01:01:44,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:01:44" (1/1) ... [2022-07-22 01:01:44,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:01:44" (1/1) ... [2022-07-22 01:01:44,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:01:44" (1/1) ... [2022-07-22 01:01:44,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:01:44" (1/1) ... [2022-07-22 01:01:44,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:01:44" (1/1) ... [2022-07-22 01:01:44,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:01:44" (1/1) ... [2022-07-22 01:01:44,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:01:44,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:01:44,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:01:44,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:01:44,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:01:44" (1/1) ... [2022-07-22 01:01:44,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 01:01:44,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:01:44,819 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) [2022-07-22 01:01:44,837 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 [2022-07-22 01:01:44,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 01:01:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 01:01:44,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 01:01:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 01:01:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-22 01:01:44,850 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-22 01:01:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 01:01:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 01:01:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 01:01:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 01:01:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 01:01:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 01:01:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 01:01:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:01:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:01:44,966 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:01:44,967 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:01:45,687 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:01:45,693 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:01:45,693 INFO L299 CfgBuilder]: Removed 31 assume(true) statements. [2022-07-22 01:01:45,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:01:45 BoogieIcfgContainer [2022-07-22 01:01:45,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:01:45,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 01:01:45,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 01:01:45,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 01:01:45,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:01:44" (1/3) ... [2022-07-22 01:01:45,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a51de5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:01:45, skipping insertion in model container [2022-07-22 01:01:45,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:01:44" (2/3) ... [2022-07-22 01:01:45,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a51de5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:01:45, skipping insertion in model container [2022-07-22 01:01:45,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:01:45" (3/3) ... [2022-07-22 01:01:45,700 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test1-1.i [2022-07-22 01:01:45,710 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 01:01:45,710 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-22 01:01:45,751 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 01:01:45,758 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@2b0e4898, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2525cc20 [2022-07-22 01:01:45,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-22 01:01:45,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 116 states have (on average 1.6810344827586208) internal successors, (195), 132 states have internal predecessors, (195), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-22 01:01:45,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-22 01:01:45,769 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:01:45,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-22 01:01:45,770 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:01:45,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:01:45,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1126635289, now seen corresponding path program 1 times [2022-07-22 01:01:45,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:01:45,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399950325] [2022-07-22 01:01:45,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:01:45,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:01:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:01:45,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:01:45,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:01:45,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399950325] [2022-07-22 01:01:45,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399950325] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:01:45,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:01:45,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:01:45,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615957089] [2022-07-22 01:01:45,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:01:45,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:01:45,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:01:45,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:01:45,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:01:45,940 INFO L87 Difference]: Start difference. First operand has 138 states, 116 states have (on average 1.6810344827586208) internal successors, (195), 132 states have internal predecessors, (195), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) 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) [2022-07-22 01:01:46,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:01:46,024 INFO L93 Difference]: Finished difference Result 366 states and 607 transitions. [2022-07-22 01:01:46,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:01:46,026 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 [2022-07-22 01:01:46,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:01:46,033 INFO L225 Difference]: With dead ends: 366 [2022-07-22 01:01:46,040 INFO L226 Difference]: Without dead ends: 226 [2022-07-22 01:01:46,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:01:46,047 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 113 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:01:46,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 386 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:01:46,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-07-22 01:01:46,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 137. [2022-07-22 01:01:46,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 117 states have (on average 1.3504273504273505) internal successors, (158), 131 states have internal predecessors, (158), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-22 01:01:46,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 184 transitions. [2022-07-22 01:01:46,098 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 184 transitions. Word has length 6 [2022-07-22 01:01:46,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:01:46,099 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 184 transitions. [2022-07-22 01:01:46,100 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) [2022-07-22 01:01:46,100 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 184 transitions. [2022-07-22 01:01:46,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 01:01:46,102 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:01:46,102 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] [2022-07-22 01:01:46,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 01:01:46,103 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:01:46,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:01:46,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1116651610, now seen corresponding path program 1 times [2022-07-22 01:01:46,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:01:46,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225501808] [2022-07-22 01:01:46,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:01:46,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:01:46,248 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:01:46,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1899481947] [2022-07-22 01:01:46,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:01:46,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:01:46,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:01:46,269 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) [2022-07-22 01:01:46,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 01:01:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:01:46,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:01:46,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:01:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:01:46,887 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:01:46,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:01:46,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225501808] [2022-07-22 01:01:46,887 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:01:46,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899481947] [2022-07-22 01:01:46,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899481947] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:01:46,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:01:46,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:01:46,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799554671] [2022-07-22 01:01:46,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:01:46,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:01:46,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:01:46,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:01:46,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:01:46,890 INFO L87 Difference]: Start difference. First operand 137 states and 184 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2022-07-22 01:01:46,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:01:46,983 INFO L93 Difference]: Finished difference Result 289 states and 393 transitions. [2022-07-22 01:01:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:01:46,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2022-07-22 01:01:46,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:01:46,985 INFO L225 Difference]: With dead ends: 289 [2022-07-22 01:01:46,985 INFO L226 Difference]: Without dead ends: 158 [2022-07-22 01:01:46,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:01:46,987 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 9 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 305 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 [2022-07-22 01:01:46,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 305 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 01:01:46,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-07-22 01:01:47,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2022-07-22 01:01:47,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 137 states have (on average 1.2992700729927007) internal successors, (178), 151 states have internal predecessors, (178), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-22 01:01:47,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 204 transitions. [2022-07-22 01:01:47,006 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 204 transitions. Word has length 56 [2022-07-22 01:01:47,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:01:47,006 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 204 transitions. [2022-07-22 01:01:47,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2022-07-22 01:01:47,007 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 204 transitions. [2022-07-22 01:01:47,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 01:01:47,008 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:01:47,008 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] [2022-07-22 01:01:47,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 01:01:47,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:01:47,209 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:01:47,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:01:47,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1391411224, now seen corresponding path program 1 times [2022-07-22 01:01:47,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:01:47,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453100407] [2022-07-22 01:01:47,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:01:47,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:01:47,311 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:01:47,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196039054] [2022-07-22 01:01:47,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:01:47,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:01:47,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:01:47,339 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) [2022-07-22 01:01:47,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 01:01:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:01:47,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:01:47,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:01:47,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:01:47,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:01:47,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:01:47,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453100407] [2022-07-22 01:01:47,992 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:01:47,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196039054] [2022-07-22 01:01:47,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196039054] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:01:47,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:01:47,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 01:01:47,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974941395] [2022-07-22 01:01:47,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:01:47,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:01:47,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:01:47,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:01:47,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:01:47,995 INFO L87 Difference]: Start difference. First operand 157 states and 204 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-22 01:01:48,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:01:48,051 INFO L93 Difference]: Finished difference Result 299 states and 393 transitions. [2022-07-22 01:01:48,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:01:48,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2022-07-22 01:01:48,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:01:48,053 INFO L225 Difference]: With dead ends: 299 [2022-07-22 01:01:48,053 INFO L226 Difference]: Without dead ends: 148 [2022-07-22 01:01:48,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:01:48,057 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 135 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 339 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 [2022-07-22 01:01:48,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 339 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:01:48,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-07-22 01:01:48,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 143. [2022-07-22 01:01:48,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 123 states have (on average 1.2764227642276422) internal successors, (157), 137 states have internal predecessors, (157), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-22 01:01:48,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 183 transitions. [2022-07-22 01:01:48,075 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 183 transitions. Word has length 56 [2022-07-22 01:01:48,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:01:48,075 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 183 transitions. [2022-07-22 01:01:48,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-22 01:01:48,076 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 183 transitions. [2022-07-22 01:01:48,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 01:01:48,076 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:01:48,077 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] [2022-07-22 01:01:48,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 01:01:48,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-22 01:01:48,297 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:01:48,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:01:48,298 INFO L85 PathProgramCache]: Analyzing trace with hash 632524954, now seen corresponding path program 1 times [2022-07-22 01:01:48,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:01:48,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162936113] [2022-07-22 01:01:48,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:01:48,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:01:48,395 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:01:48,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [133573011] [2022-07-22 01:01:48,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:01:48,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:01:48,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:01:48,397 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) [2022-07-22 01:01:48,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 01:01:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:01:48,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:01:48,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:01:49,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:01:49,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:01:49,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:01:49,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162936113] [2022-07-22 01:01:49,047 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:01:49,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133573011] [2022-07-22 01:01:49,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133573011] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:01:49,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:01:49,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:01:49,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843547020] [2022-07-22 01:01:49,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:01:49,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:01:49,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:01:49,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:01:49,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:01:49,051 INFO L87 Difference]: Start difference. First operand 143 states and 183 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-22 01:01:49,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:01:49,114 INFO L93 Difference]: Finished difference Result 238 states and 298 transitions. [2022-07-22 01:01:49,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 01:01:49,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2022-07-22 01:01:49,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:01:49,118 INFO L225 Difference]: With dead ends: 238 [2022-07-22 01:01:49,118 INFO L226 Difference]: Without dead ends: 237 [2022-07-22 01:01:49,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:01:49,121 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 55 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:01:49,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 498 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:01:49,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-07-22 01:01:49,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 235. [2022-07-22 01:01:49,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 212 states have (on average 1.240566037735849) internal successors, (263), 226 states have internal predecessors, (263), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-22 01:01:49,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 295 transitions. [2022-07-22 01:01:49,140 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 295 transitions. Word has length 56 [2022-07-22 01:01:49,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:01:49,142 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 295 transitions. [2022-07-22 01:01:49,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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) [2022-07-22 01:01:49,143 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 295 transitions. [2022-07-22 01:01:49,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-22 01:01:49,146 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:01:49,146 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] [2022-07-22 01:01:49,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 01:01:49,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:01:49,356 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:01:49,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:01:49,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1866562491, now seen corresponding path program 1 times [2022-07-22 01:01:49,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:01:49,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880954817] [2022-07-22 01:01:49,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:01:49,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:01:49,444 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:01:49,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1170192858] [2022-07-22 01:01:49,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:01:49,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:01:49,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:01:49,446 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) [2022-07-22 01:01:49,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 01:01:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:01:50,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:01:50,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:01:50,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:01:50,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:01:50,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:01:50,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880954817] [2022-07-22 01:01:50,198 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:01:50,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170192858] [2022-07-22 01:01:50,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170192858] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:01:50,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:01:50,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:01:50,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205008174] [2022-07-22 01:01:50,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:01:50,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:01:50,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:01:50,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:01:50,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:01:50,200 INFO L87 Difference]: Start difference. First operand 235 states and 295 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-07-22 01:01:50,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:01:50,258 INFO L93 Difference]: Finished difference Result 235 states and 295 transitions. [2022-07-22 01:01:50,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:01:50,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 57 [2022-07-22 01:01:50,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:01:50,260 INFO L225 Difference]: With dead ends: 235 [2022-07-22 01:01:50,261 INFO L226 Difference]: Without dead ends: 234 [2022-07-22 01:01:50,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:01:50,262 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 85 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:01:50,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 344 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:01:50,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-07-22 01:01:50,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-07-22 01:01:50,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 212 states have (on average 1.2358490566037736) internal successors, (262), 225 states have internal predecessors, (262), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-22 01:01:50,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 294 transitions. [2022-07-22 01:01:50,270 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 294 transitions. Word has length 57 [2022-07-22 01:01:50,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:01:50,271 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 294 transitions. [2022-07-22 01:01:50,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-07-22 01:01:50,272 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 294 transitions. [2022-07-22 01:01:50,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-22 01:01:50,275 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:01:50,275 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] [2022-07-22 01:01:50,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-22 01:01:50,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:01:50,497 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:01:50,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:01:50,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1237589276, now seen corresponding path program 1 times [2022-07-22 01:01:50,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:01:50,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375824472] [2022-07-22 01:01:50,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:01:50,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:01:50,590 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:01:50,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [283327826] [2022-07-22 01:01:50,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:01:50,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:01:50,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:01:50,593 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) [2022-07-22 01:01:50,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 01:01:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:01:51,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:01:51,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:01:51,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:01:51,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:01:51,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:01:51,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:01:51,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375824472] [2022-07-22 01:01:51,529 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:01:51,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283327826] [2022-07-22 01:01:51,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283327826] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:01:51,530 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:01:51,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-22 01:01:51,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276770691] [2022-07-22 01:01:51,530 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:01:51,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 01:01:51,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:01:51,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 01:01:51,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-22 01:01:51,531 INFO L87 Difference]: Start difference. First operand 234 states and 294 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 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) [2022-07-22 01:01:51,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:01:51,601 INFO L93 Difference]: Finished difference Result 367 states and 469 transitions. [2022-07-22 01:01:51,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 01:01:51,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 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 61 [2022-07-22 01:01:51,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:01:51,603 INFO L225 Difference]: With dead ends: 367 [2022-07-22 01:01:51,603 INFO L226 Difference]: Without dead ends: 333 [2022-07-22 01:01:51,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-07-22 01:01:51,605 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 522 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:01:51,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 714 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:01:51,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-07-22 01:01:51,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-07-22 01:01:51,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 308 states have (on average 1.2207792207792207) internal successors, (376), 321 states have internal predecessors, (376), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2022-07-22 01:01:51,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 414 transitions. [2022-07-22 01:01:51,615 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 414 transitions. Word has length 61 [2022-07-22 01:01:51,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:01:51,615 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 414 transitions. [2022-07-22 01:01:51,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 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) [2022-07-22 01:01:51,616 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 414 transitions. [2022-07-22 01:01:51,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-22 01:01:51,616 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:01:51,617 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] [2022-07-22 01:01:51,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-22 01:01:51,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:01:51,835 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:01:51,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:01:51,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1237285228, now seen corresponding path program 1 times [2022-07-22 01:01:51,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:01:51,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737281142] [2022-07-22 01:01:51,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:01:51,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:01:51,910 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:01:51,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150225869] [2022-07-22 01:01:51,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:01:51,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:01:51,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:01:51,913 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) [2022-07-22 01:01:51,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 01:01:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:01:52,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 1535 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:01:52,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:01:52,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:01:52,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:01:52,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:01:52,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737281142] [2022-07-22 01:01:52,830 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:01:52,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150225869] [2022-07-22 01:01:52,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150225869] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:01:52,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:01:52,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:01:52,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044586310] [2022-07-22 01:01:52,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:01:52,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:01:52,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:01:52,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:01:52,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:01:52,832 INFO L87 Difference]: Start difference. First operand 333 states and 414 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2022-07-22 01:01:52,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:01:52,865 INFO L93 Difference]: Finished difference Result 606 states and 760 transitions. [2022-07-22 01:01:52,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:01:52,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2022-07-22 01:01:52,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:01:52,867 INFO L225 Difference]: With dead ends: 606 [2022-07-22 01:01:52,867 INFO L226 Difference]: Without dead ends: 331 [2022-07-22 01:01:52,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:01:52,868 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 15 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:01:52,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 326 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:01:52,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-07-22 01:01:52,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-07-22 01:01:52,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 306 states have (on average 1.2189542483660132) internal successors, (373), 319 states have internal predecessors, (373), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2022-07-22 01:01:52,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 411 transitions. [2022-07-22 01:01:52,876 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 411 transitions. Word has length 61 [2022-07-22 01:01:52,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:01:52,877 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 411 transitions. [2022-07-22 01:01:52,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2022-07-22 01:01:52,877 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 411 transitions. [2022-07-22 01:01:52,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-22 01:01:52,878 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:01:52,878 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] [2022-07-22 01:01:52,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 01:01:53,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:01:53,101 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:01:53,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:01:53,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1438130325, now seen corresponding path program 1 times [2022-07-22 01:01:53,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:01:53,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661118234] [2022-07-22 01:01:53,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:01:53,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:01:53,136 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:01:53,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1511876780] [2022-07-22 01:01:53,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:01:53,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:01:53,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:01:53,138 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) [2022-07-22 01:01:53,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 01:02:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:02:17,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:02:17,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:02:17,098 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:02:17,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:02:17,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:02:17,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661118234] [2022-07-22 01:02:17,099 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:02:17,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511876780] [2022-07-22 01:02:17,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511876780] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:02:17,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:02:17,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 01:02:17,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636434760] [2022-07-22 01:02:17,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:02:17,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:02:17,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:02:17,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:02:17,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:02:17,101 INFO L87 Difference]: Start difference. First operand 331 states and 411 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-22 01:02:17,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:02:17,151 INFO L93 Difference]: Finished difference Result 613 states and 776 transitions. [2022-07-22 01:02:17,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:02:17,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 76 [2022-07-22 01:02:17,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:02:17,153 INFO L225 Difference]: With dead ends: 613 [2022-07-22 01:02:17,153 INFO L226 Difference]: Without dead ends: 334 [2022-07-22 01:02:17,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:02:17,154 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 2 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:02:17,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 503 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:02:17,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-07-22 01:02:17,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-07-22 01:02:17,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 308 states have (on average 1.2207792207792207) internal successors, (376), 322 states have internal predecessors, (376), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 01:02:17,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 417 transitions. [2022-07-22 01:02:17,166 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 417 transitions. Word has length 76 [2022-07-22 01:02:17,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:02:17,168 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 417 transitions. [2022-07-22 01:02:17,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-22 01:02:17,168 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 417 transitions. [2022-07-22 01:02:17,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-22 01:02:17,168 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:02:17,169 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:02:17,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 01:02:17,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:02:17,390 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:02:17,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:02:17,390 INFO L85 PathProgramCache]: Analyzing trace with hash 766935497, now seen corresponding path program 1 times [2022-07-22 01:02:17,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:02:17,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174856512] [2022-07-22 01:02:17,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:02:17,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:02:17,458 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:02:17,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [660300419] [2022-07-22 01:02:17,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:02:17,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:02:17,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:02:17,461 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) [2022-07-22 01:02:17,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 01:02:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:02:18,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 01:02:18,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:02:18,848 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 01:02:18,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:02:18,927 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 01:02:18,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:02:18,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174856512] [2022-07-22 01:02:18,928 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:02:18,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660300419] [2022-07-22 01:02:18,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660300419] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:02:18,928 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:02:18,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-22 01:02:18,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634669019] [2022-07-22 01:02:18,931 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:02:18,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 01:02:18,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:02:18,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 01:02:18,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 01:02:18,932 INFO L87 Difference]: Start difference. First operand 334 states and 417 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:02:19,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:02:19,023 INFO L93 Difference]: Finished difference Result 627 states and 803 transitions. [2022-07-22 01:02:19,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 01:02:19,024 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 78 [2022-07-22 01:02:19,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:02:19,026 INFO L225 Difference]: With dead ends: 627 [2022-07-22 01:02:19,026 INFO L226 Difference]: Without dead ends: 345 [2022-07-22 01:02:19,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-07-22 01:02:19,027 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 16 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:02:19,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 508 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:02:19,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-07-22 01:02:19,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 343. [2022-07-22 01:02:19,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 316 states have (on average 1.2341772151898733) internal successors, (390), 330 states have internal predecessors, (390), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 01:02:19,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 431 transitions. [2022-07-22 01:02:19,036 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 431 transitions. Word has length 78 [2022-07-22 01:02:19,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:02:19,037 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 431 transitions. [2022-07-22 01:02:19,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:02:19,037 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 431 transitions. [2022-07-22 01:02:19,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-22 01:02:19,038 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:02:19,038 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2022-07-22 01:02:19,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-22 01:02:19,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-22 01:02:19,267 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:02:19,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:02:19,268 INFO L85 PathProgramCache]: Analyzing trace with hash 432269099, now seen corresponding path program 2 times [2022-07-22 01:02:19,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:02:19,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040682861] [2022-07-22 01:02:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:02:19,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:02:19,317 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:02:19,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1298509254] [2022-07-22 01:02:19,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 01:02:19,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:02:19,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:02:19,320 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) [2022-07-22 01:02:19,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 01:02:20,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 01:02:20,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:02:20,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-22 01:02:20,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:02:20,465 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-22 01:02:20,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:02:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-22 01:02:20,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:02:20,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040682861] [2022-07-22 01:02:20,599 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:02:20,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298509254] [2022-07-22 01:02:20,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298509254] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:02:20,599 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:02:20,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2022-07-22 01:02:20,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863810978] [2022-07-22 01:02:20,600 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:02:20,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-22 01:02:20,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:02:20,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-22 01:02:20,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-07-22 01:02:20,601 INFO L87 Difference]: Start difference. First operand 343 states and 431 transitions. Second operand has 15 states, 15 states have (on average 6.0) internal successors, (90), 15 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:02:21,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:02:21,073 INFO L93 Difference]: Finished difference Result 688 states and 894 transitions. [2022-07-22 01:02:21,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 01:02:21,074 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 15 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 82 [2022-07-22 01:02:21,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:02:21,075 INFO L225 Difference]: With dead ends: 688 [2022-07-22 01:02:21,076 INFO L226 Difference]: Without dead ends: 351 [2022-07-22 01:02:21,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=259, Invalid=553, Unknown=0, NotChecked=0, Total=812 [2022-07-22 01:02:21,077 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 179 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 01:02:21,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 1321 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 01:02:21,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-07-22 01:02:21,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 343. [2022-07-22 01:02:21,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 316 states have (on average 1.2341772151898733) internal successors, (390), 330 states have internal predecessors, (390), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 01:02:21,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 431 transitions. [2022-07-22 01:02:21,087 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 431 transitions. Word has length 82 [2022-07-22 01:02:21,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:02:21,088 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 431 transitions. [2022-07-22 01:02:21,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 15 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:02:21,088 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 431 transitions. [2022-07-22 01:02:21,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-22 01:02:21,089 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:02:21,089 INFO L195 NwaCegarLoop]: trace histogram [15, 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] [2022-07-22 01:02:21,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-22 01:02:21,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-22 01:02:21,314 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:02:21,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:02:21,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1367817495, now seen corresponding path program 3 times [2022-07-22 01:02:21,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:02:21,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258776427] [2022-07-22 01:02:21,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:02:21,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:02:21,389 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:02:21,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [528499724] [2022-07-22 01:02:21,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 01:02:21,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:02:21,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:02:21,408 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) [2022-07-22 01:02:21,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 01:02:24,374 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-22 01:02:24,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:02:24,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:02:24,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:02:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 01:02:24,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:02:24,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:02:24,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258776427] [2022-07-22 01:02:24,477 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:02:24,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528499724] [2022-07-22 01:02:24,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528499724] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:02:24,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:02:24,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 01:02:24,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415055447] [2022-07-22 01:02:24,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:02:24,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 01:02:24,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:02:24,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 01:02:24,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 01:02:24,479 INFO L87 Difference]: Start difference. First operand 343 states and 431 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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) [2022-07-22 01:02:24,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:02:24,540 INFO L93 Difference]: Finished difference Result 343 states and 431 transitions. [2022-07-22 01:02:24,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 01:02:24,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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 91 [2022-07-22 01:02:24,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:02:24,542 INFO L225 Difference]: With dead ends: 343 [2022-07-22 01:02:24,542 INFO L226 Difference]: Without dead ends: 342 [2022-07-22 01:02:24,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-22 01:02:24,543 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 172 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:02:24,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 792 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:02:24,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-07-22 01:02:24,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-07-22 01:02:24,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 316 states have (on average 1.2278481012658229) internal successors, (388), 329 states have internal predecessors, (388), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 01:02:24,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 429 transitions. [2022-07-22 01:02:24,551 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 429 transitions. Word has length 91 [2022-07-22 01:02:24,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:02:24,552 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 429 transitions. [2022-07-22 01:02:24,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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) [2022-07-22 01:02:24,552 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 429 transitions. [2022-07-22 01:02:24,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-22 01:02:24,553 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:02:24,553 INFO L195 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:02:24,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-22 01:02:24,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-22 01:02:24,767 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:02:24,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:02:24,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1165389731, now seen corresponding path program 1 times [2022-07-22 01:02:24,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:02:24,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617956102] [2022-07-22 01:02:24,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:02:24,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:02:24,921 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:02:24,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444232621] [2022-07-22 01:02:24,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:02:24,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:02:24,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:02:24,923 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) [2022-07-22 01:02:24,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-22 01:02:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:02:26,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 3825 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 01:02:26,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:02:26,501 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 01:02:26,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:02:26,689 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 01:02:26,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:02:26,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617956102] [2022-07-22 01:02:26,689 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:02:26,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444232621] [2022-07-22 01:02:26,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444232621] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:02:26,690 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:02:26,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-07-22 01:02:26,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358356617] [2022-07-22 01:02:26,690 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:02:26,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 01:02:26,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:02:26,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 01:02:26,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-07-22 01:02:26,691 INFO L87 Difference]: Start difference. First operand 342 states and 429 transitions. Second operand has 14 states, 13 states have (on average 26.53846153846154) internal successors, (345), 14 states have internal predecessors, (345), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:02:26,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:02:26,834 INFO L93 Difference]: Finished difference Result 465 states and 594 transitions. [2022-07-22 01:02:26,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 01:02:26,835 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 26.53846153846154) internal successors, (345), 14 states have internal predecessors, (345), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 196 [2022-07-22 01:02:26,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:02:26,837 INFO L225 Difference]: With dead ends: 465 [2022-07-22 01:02:26,837 INFO L226 Difference]: Without dead ends: 464 [2022-07-22 01:02:26,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-07-22 01:02:26,838 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 395 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 01:02:26,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1347 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 01:02:26,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-07-22 01:02:26,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 341. [2022-07-22 01:02:26,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 316 states have (on average 1.2246835443037976) internal successors, (387), 328 states have internal predecessors, (387), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-07-22 01:02:26,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 428 transitions. [2022-07-22 01:02:26,849 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 428 transitions. Word has length 196 [2022-07-22 01:02:26,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:02:26,849 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 428 transitions. [2022-07-22 01:02:26,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 26.53846153846154) internal successors, (345), 14 states have internal predecessors, (345), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:02:26,850 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 428 transitions. [2022-07-22 01:02:26,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-22 01:02:26,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:02:26,851 INFO L195 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:02:26,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-22 01:02:27,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-22 01:02:27,071 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:02:27,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:02:27,072 INFO L85 PathProgramCache]: Analyzing trace with hash -493453511, now seen corresponding path program 1 times [2022-07-22 01:02:27,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:02:27,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850294073] [2022-07-22 01:02:27,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:02:27,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:02:27,262 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:02:27,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770391355] [2022-07-22 01:02:27,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:02:27,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:02:27,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:02:27,267 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) [2022-07-22 01:02:27,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-22 01:02:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:02:28,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 3849 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 01:02:28,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:02:29,121 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 01:02:29,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:02:29,354 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 01:02:29,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:02:29,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850294073] [2022-07-22 01:02:29,354 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:02:29,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770391355] [2022-07-22 01:02:29,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770391355] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:02:29,354 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:02:29,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-07-22 01:02:29,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333192690] [2022-07-22 01:02:29,355 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:02:29,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-22 01:02:29,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:02:29,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-22 01:02:29,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-07-22 01:02:29,356 INFO L87 Difference]: Start difference. First operand 341 states and 428 transitions. Second operand has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:02:29,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:02:29,507 INFO L93 Difference]: Finished difference Result 750 states and 940 transitions. [2022-07-22 01:02:29,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 01:02:29,508 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 201 [2022-07-22 01:02:29,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:02:29,512 INFO L225 Difference]: With dead ends: 750 [2022-07-22 01:02:29,512 INFO L226 Difference]: Without dead ends: 717 [2022-07-22 01:02:29,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2022-07-22 01:02:29,514 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 805 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 01:02:29,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 1287 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 01:02:29,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-07-22 01:02:29,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2022-07-22 01:02:29,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 680 states have (on average 1.1985294117647058) internal successors, (815), 692 states have internal predecessors, (815), 31 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (38), 22 states have call predecessors, (38), 31 states have call successors, (38) [2022-07-22 01:02:29,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 884 transitions. [2022-07-22 01:02:29,542 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 884 transitions. Word has length 201 [2022-07-22 01:02:29,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:02:29,543 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 884 transitions. [2022-07-22 01:02:29,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:02:29,543 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 884 transitions. [2022-07-22 01:02:29,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-07-22 01:02:29,547 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:02:29,547 INFO L195 NwaCegarLoop]: trace histogram [15, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:02:29,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-07-22 01:02:29,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-22 01:02:29,776 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:02:29,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:02:29,777 INFO L85 PathProgramCache]: Analyzing trace with hash -339908487, now seen corresponding path program 2 times [2022-07-22 01:02:29,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:02:29,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747220299] [2022-07-22 01:02:29,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:02:29,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:02:30,194 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:02:30,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202565592] [2022-07-22 01:02:30,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 01:02:30,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:02:30,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:02:30,196 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:02:30,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-22 01:02:32,140 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 01:02:32,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:02:32,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:02:32,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:02:32,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1289 trivial. 0 not checked. [2022-07-22 01:02:32,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:02:32,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:02:32,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747220299] [2022-07-22 01:02:32,602 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:02:32,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202565592] [2022-07-22 01:02:32,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202565592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:02:32,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:02:32,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:02:32,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606756803] [2022-07-22 01:02:32,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:02:32,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:02:32,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:02:32,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:02:32,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:02:32,605 INFO L87 Difference]: Start difference. First operand 717 states and 884 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2022-07-22 01:02:32,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:02:32,643 INFO L93 Difference]: Finished difference Result 743 states and 930 transitions. [2022-07-22 01:02:32,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 01:02:32,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 421 [2022-07-22 01:02:32,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:02:32,649 INFO L225 Difference]: With dead ends: 743 [2022-07-22 01:02:32,649 INFO L226 Difference]: Without dead ends: 742 [2022-07-22 01:02:32,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:02:32,650 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 65 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:02:32,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 364 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:02:32,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-07-22 01:02:32,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 719. [2022-07-22 01:02:32,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 682 states have (on average 1.1979472140762464) internal successors, (817), 694 states have internal predecessors, (817), 31 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (38), 22 states have call predecessors, (38), 31 states have call successors, (38) [2022-07-22 01:02:32,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 886 transitions. [2022-07-22 01:02:32,752 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 886 transitions. Word has length 421 [2022-07-22 01:02:32,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:02:32,753 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 886 transitions. [2022-07-22 01:02:32,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2022-07-22 01:02:32,753 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 886 transitions. [2022-07-22 01:02:32,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-07-22 01:02:32,763 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:02:32,763 INFO L195 NwaCegarLoop]: trace histogram [15, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:02:32,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-22 01:02:32,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-22 01:02:32,980 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:02:32,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:02:32,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1947228074, now seen corresponding path program 1 times [2022-07-22 01:02:32,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:02:32,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172086311] [2022-07-22 01:02:32,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:02:32,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:02:33,324 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:02:33,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827676006] [2022-07-22 01:02:33,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:02:33,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:02:33,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:02:33,326 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:02:33,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-22 01:02:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:02:37,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 9766 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-22 01:02:37,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:02:37,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 01:02:37,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:02:38,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-07-22 01:02:38,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:02:38,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172086311] [2022-07-22 01:02:38,042 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:02:38,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827676006] [2022-07-22 01:02:38,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827676006] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:02:38,042 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:02:38,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 21 [2022-07-22 01:02:38,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467852708] [2022-07-22 01:02:38,043 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:02:38,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-22 01:02:38,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:02:38,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-22 01:02:38,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-07-22 01:02:38,044 INFO L87 Difference]: Start difference. First operand 719 states and 886 transitions. Second operand has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:02:38,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:02:38,311 INFO L93 Difference]: Finished difference Result 1036 states and 1285 transitions. [2022-07-22 01:02:38,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-22 01:02:38,312 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 422 [2022-07-22 01:02:38,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:02:38,316 INFO L225 Difference]: With dead ends: 1036 [2022-07-22 01:02:38,316 INFO L226 Difference]: Without dead ends: 1001 [2022-07-22 01:02:38,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 822 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=597, Unknown=0, NotChecked=0, Total=870 [2022-07-22 01:02:38,318 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 1495 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 2032 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 01:02:38,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 2032 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 01:02:38,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2022-07-22 01:02:38,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 1001. [2022-07-22 01:02:38,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 955 states have (on average 1.1916230366492147) internal successors, (1138), 967 states have internal predecessors, (1138), 40 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (50), 31 states have call predecessors, (50), 40 states have call successors, (50) [2022-07-22 01:02:38,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1228 transitions. [2022-07-22 01:02:38,342 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1228 transitions. Word has length 422 [2022-07-22 01:02:38,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:02:38,343 INFO L495 AbstractCegarLoop]: Abstraction has 1001 states and 1228 transitions. [2022-07-22 01:02:38,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:02:38,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1228 transitions. [2022-07-22 01:02:38,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2022-07-22 01:02:38,351 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:02:38,351 INFO L195 NwaCegarLoop]: trace histogram [15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:02:38,400 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-07-22 01:02:38,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:02:38,576 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:02:38,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:02:38,576 INFO L85 PathProgramCache]: Analyzing trace with hash -286676461, now seen corresponding path program 2 times [2022-07-22 01:02:38,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:02:38,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167105366] [2022-07-22 01:02:38,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:02:38,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:02:39,202 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:02:39,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [894563201] [2022-07-22 01:02:39,203 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 01:02:39,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:02:39,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:02:39,213 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:02:39,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-22 01:02:42,470 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 01:02:42,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:02:42,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:02:42,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:02:43,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2606 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 01:02:43,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:02:43,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:02:43,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167105366] [2022-07-22 01:02:43,086 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:02:43,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894563201] [2022-07-22 01:02:43,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894563201] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:02:43,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:02:43,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:02:43,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414910833] [2022-07-22 01:02:43,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:02:43,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:02:43,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:02:43,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:02:43,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:02:43,087 INFO L87 Difference]: Start difference. First operand 1001 states and 1228 transitions. Second operand has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2022-07-22 01:02:43,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:02:43,155 INFO L93 Difference]: Finished difference Result 1001 states and 1228 transitions. [2022-07-22 01:02:43,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:02:43,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 587 [2022-07-22 01:02:43,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:02:43,159 INFO L225 Difference]: With dead ends: 1001 [2022-07-22 01:02:43,160 INFO L226 Difference]: Without dead ends: 1000 [2022-07-22 01:02:43,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:02:43,161 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 100 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:02:43,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 272 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:02:43,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2022-07-22 01:02:43,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 1000. [2022-07-22 01:02:43,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 955 states have (on average 1.1905759162303664) internal successors, (1137), 966 states have internal predecessors, (1137), 40 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (50), 31 states have call predecessors, (50), 40 states have call successors, (50) [2022-07-22 01:02:43,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1227 transitions. [2022-07-22 01:02:43,188 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1227 transitions. Word has length 587 [2022-07-22 01:02:43,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:02:43,189 INFO L495 AbstractCegarLoop]: Abstraction has 1000 states and 1227 transitions. [2022-07-22 01:02:43,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2022-07-22 01:02:43,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1227 transitions. [2022-07-22 01:02:43,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2022-07-22 01:02:43,194 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:02:43,194 INFO L195 NwaCegarLoop]: trace histogram [15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2022-07-22 01:02:43,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-22 01:02:43,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-22 01:02:43,407 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:02:43,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:02:43,408 INFO L85 PathProgramCache]: Analyzing trace with hash -645700228, now seen corresponding path program 1 times [2022-07-22 01:02:43,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:02:43,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886988000] [2022-07-22 01:02:43,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:02:43,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:02:44,039 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:02:44,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1325509522] [2022-07-22 01:02:44,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:02:44,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:02:44,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:02:44,054 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:02:44,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-22 01:02:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:02:50,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 14238 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:02:50,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:02:50,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2608 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 01:02:50,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:02:51,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2608 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 01:02:51,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:02:51,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886988000] [2022-07-22 01:02:51,446 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:02:51,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325509522] [2022-07-22 01:02:51,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325509522] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:02:51,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:02:51,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2022-07-22 01:02:51,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211748213] [2022-07-22 01:02:51,446 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:02:51,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 01:02:51,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:02:51,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 01:02:51,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-22 01:02:51,450 INFO L87 Difference]: Start difference. First operand 1000 states and 1227 transitions. Second operand has 10 states, 9 states have (on average 18.444444444444443) internal successors, (166), 10 states have internal predecessors, (166), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-22 01:02:51,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:02:51,727 INFO L93 Difference]: Finished difference Result 1092 states and 1378 transitions. [2022-07-22 01:02:51,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 01:02:51,728 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.444444444444443) internal successors, (166), 10 states have internal predecessors, (166), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 598 [2022-07-22 01:02:51,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:02:51,732 INFO L225 Difference]: With dead ends: 1092 [2022-07-22 01:02:51,732 INFO L226 Difference]: Without dead ends: 1091 [2022-07-22 01:02:51,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1201 GetRequests, 1186 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2022-07-22 01:02:51,733 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 350 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 01:02:51,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 688 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 01:02:51,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2022-07-22 01:02:51,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1090. [2022-07-22 01:02:51,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 1012 states have (on average 1.209486166007905) internal successors, (1224), 1053 states have internal predecessors, (1224), 70 states have call successors, (70), 6 states have call predecessors, (70), 7 states have return successors, (80), 34 states have call predecessors, (80), 70 states have call successors, (80) [2022-07-22 01:02:51,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1374 transitions. [2022-07-22 01:02:51,776 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1374 transitions. Word has length 598 [2022-07-22 01:02:51,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:02:51,776 INFO L495 AbstractCegarLoop]: Abstraction has 1090 states and 1374 transitions. [2022-07-22 01:02:51,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.444444444444443) internal successors, (166), 10 states have internal predecessors, (166), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-22 01:02:51,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1374 transitions. [2022-07-22 01:02:51,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2022-07-22 01:02:51,783 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:02:51,783 INFO L195 NwaCegarLoop]: trace histogram [15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:02:51,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-22 01:02:52,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-22 01:02:52,019 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:02:52,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:02:52,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1564932964, now seen corresponding path program 2 times [2022-07-22 01:02:52,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:02:52,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511596524] [2022-07-22 01:02:52,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:02:52,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:02:52,694 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:02:52,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1882444816] [2022-07-22 01:02:52,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 01:02:52,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:02:52,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:02:52,709 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:02:52,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-22 01:02:59,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 01:02:59,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:02:59,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 14346 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-22 01:02:59,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:03:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2686 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 01:03:00,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:03:00,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2686 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 2630 trivial. 0 not checked. [2022-07-22 01:03:00,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:03:00,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511596524] [2022-07-22 01:03:00,968 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:03:00,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882444816] [2022-07-22 01:03:00,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882444816] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:03:00,968 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:03:00,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2022-07-22 01:03:00,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161206813] [2022-07-22 01:03:00,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:03:00,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-22 01:03:00,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:03:00,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-22 01:03:00,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-07-22 01:03:00,972 INFO L87 Difference]: Start difference. First operand 1090 states and 1374 transitions. Second operand has 22 states, 21 states have (on average 10.333333333333334) internal successors, (217), 22 states have internal predecessors, (217), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-07-22 01:03:01,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:03:01,639 INFO L93 Difference]: Finished difference Result 1272 states and 1675 transitions. [2022-07-22 01:03:01,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-22 01:03:01,640 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.333333333333334) internal successors, (217), 22 states have internal predecessors, (217), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 634 [2022-07-22 01:03:01,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:03:01,644 INFO L225 Difference]: With dead ends: 1272 [2022-07-22 01:03:01,644 INFO L226 Difference]: Without dead ends: 1271 [2022-07-22 01:03:01,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1285 GetRequests, 1246 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2022-07-22 01:03:01,647 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 1173 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 01:03:01,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 737 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 01:03:01,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2022-07-22 01:03:01,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1270. [2022-07-22 01:03:01,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1126 states have (on average 1.241563055062167) internal successors, (1398), 1227 states have internal predecessors, (1398), 130 states have call successors, (130), 12 states have call predecessors, (130), 13 states have return successors, (140), 40 states have call predecessors, (140), 130 states have call successors, (140) [2022-07-22 01:03:01,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1668 transitions. [2022-07-22 01:03:01,733 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1668 transitions. Word has length 634 [2022-07-22 01:03:01,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:03:01,734 INFO L495 AbstractCegarLoop]: Abstraction has 1270 states and 1668 transitions. [2022-07-22 01:03:01,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.333333333333334) internal successors, (217), 22 states have internal predecessors, (217), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-07-22 01:03:01,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1668 transitions. [2022-07-22 01:03:01,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2022-07-22 01:03:01,742 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:03:01,742 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:03:01,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-22 01:03:01,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-22 01:03:01,968 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:03:01,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:03:01,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1223758556, now seen corresponding path program 3 times [2022-07-22 01:03:01,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:03:01,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737039473] [2022-07-22 01:03:01,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:03:01,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:03:02,641 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:03:02,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827574379] [2022-07-22 01:03:02,641 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 01:03:02,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:03:02,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:03:02,643 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:03:02,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-22 01:03:08,355 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-22 01:03:08,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:03:08,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 1565 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:03:08,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:03:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 3166 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 3065 trivial. 0 not checked. [2022-07-22 01:03:08,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:03:08,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:03:08,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737039473] [2022-07-22 01:03:08,456 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:03:08,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827574379] [2022-07-22 01:03:08,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827574379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:03:08,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:03:08,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 01:03:08,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567917256] [2022-07-22 01:03:08,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:03:08,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 01:03:08,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:03:08,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 01:03:08,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:03:08,458 INFO L87 Difference]: Start difference. First operand 1270 states and 1668 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:03:08,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:03:08,582 INFO L93 Difference]: Finished difference Result 1587 states and 2155 transitions. [2022-07-22 01:03:08,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 01:03:08,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 706 [2022-07-22 01:03:08,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:03:08,588 INFO L225 Difference]: With dead ends: 1587 [2022-07-22 01:03:08,588 INFO L226 Difference]: Without dead ends: 1586 [2022-07-22 01:03:08,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-22 01:03:08,590 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 264 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 01:03:08,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 320 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 01:03:08,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2022-07-22 01:03:08,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1513. [2022-07-22 01:03:08,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1297 states have (on average 1.2791056283731688) internal successors, (1659), 1452 states have internal predecessors, (1659), 193 states have call successors, (193), 21 states have call predecessors, (193), 22 states have return successors, (203), 49 states have call predecessors, (203), 193 states have call successors, (203) [2022-07-22 01:03:08,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2055 transitions. [2022-07-22 01:03:08,640 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2055 transitions. Word has length 706 [2022-07-22 01:03:08,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:03:08,641 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2055 transitions. [2022-07-22 01:03:08,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:03:08,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2055 transitions. [2022-07-22 01:03:08,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 708 [2022-07-22 01:03:08,647 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:03:08,648 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:03:08,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-07-22 01:03:08,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:03:08,863 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:03:08,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:03:08,864 INFO L85 PathProgramCache]: Analyzing trace with hash 325074127, now seen corresponding path program 1 times [2022-07-22 01:03:08,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:03:08,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586006965] [2022-07-22 01:03:08,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:03:08,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:03:09,653 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:03:09,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [660398643] [2022-07-22 01:03:09,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:03:09,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:03:09,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:03:09,662 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:03:09,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-22 01:03:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:03:17,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 14564 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-22 01:03:17,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:03:18,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 01:03:18,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:03:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 0 proven. 371 refuted. 0 times theorem prover too weak. 2786 trivial. 0 not checked. [2022-07-22 01:03:19,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:03:19,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586006965] [2022-07-22 01:03:19,869 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:03:19,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660398643] [2022-07-22 01:03:19,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660398643] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:03:19,870 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:03:19,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 45 [2022-07-22 01:03:19,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80270696] [2022-07-22 01:03:19,871 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:03:19,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-07-22 01:03:19,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:03:19,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-07-22 01:03:19,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-07-22 01:03:19,874 INFO L87 Difference]: Start difference. First operand 1513 states and 2055 transitions. Second operand has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-07-22 01:03:22,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:03:22,703 INFO L93 Difference]: Finished difference Result 2230 states and 3223 transitions. [2022-07-22 01:03:22,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-07-22 01:03:22,704 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) Word has length 707 [2022-07-22 01:03:22,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:03:22,711 INFO L225 Difference]: With dead ends: 2230 [2022-07-22 01:03:22,712 INFO L226 Difference]: Without dead ends: 2229 [2022-07-22 01:03:22,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1455 GetRequests, 1368 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=2529, Invalid=5303, Unknown=0, NotChecked=0, Total=7832 [2022-07-22 01:03:22,714 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 3183 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 2196 mSolverCounterSat, 1561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3193 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 3757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1561 IncrementalHoareTripleChecker+Valid, 2196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-22 01:03:22,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3193 Valid, 1333 Invalid, 3757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1561 Valid, 2196 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-22 01:03:22,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states. [2022-07-22 01:03:22,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 2209. [2022-07-22 01:03:22,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 1753 states have (on average 1.343411294922989) internal successors, (2355), 2112 states have internal predecessors, (2355), 409 states have call successors, (409), 45 states have call predecessors, (409), 46 states have return successors, (419), 73 states have call predecessors, (419), 409 states have call successors, (419) [2022-07-22 01:03:22,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3183 transitions. [2022-07-22 01:03:22,801 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3183 transitions. Word has length 707 [2022-07-22 01:03:22,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:03:22,802 INFO L495 AbstractCegarLoop]: Abstraction has 2209 states and 3183 transitions. [2022-07-22 01:03:22,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-07-22 01:03:22,802 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3183 transitions. [2022-07-22 01:03:22,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2022-07-22 01:03:22,812 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:03:22,813 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:03:22,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-22 01:03:23,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:03:23,035 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:03:23,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:03:23,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1740083121, now seen corresponding path program 2 times [2022-07-22 01:03:23,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:03:23,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761372382] [2022-07-22 01:03:23,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:03:23,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:03:23,554 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:03:23,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1130076627] [2022-07-22 01:03:23,554 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 01:03:23,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:03:23,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:03:23,556 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:03:23,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-22 01:03:32,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 01:03:32,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:03:32,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 14996 conjuncts, 47 conjunts are in the unsatisfiable core [2022-07-22 01:03:32,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:03:33,949 INFO L134 CoverageAnalysis]: Checked inductivity of 5401 backedges. 0 proven. 2795 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 01:03:33,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:03:35,333 INFO L134 CoverageAnalysis]: Checked inductivity of 5401 backedges. 0 proven. 1871 refuted. 0 times theorem prover too weak. 3530 trivial. 0 not checked. [2022-07-22 01:03:35,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:03:35,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761372382] [2022-07-22 01:03:35,333 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:03:35,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130076627] [2022-07-22 01:03:35,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130076627] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:03:35,335 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:03:35,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 47] total 93 [2022-07-22 01:03:35,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196195370] [2022-07-22 01:03:35,336 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:03:35,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-07-22 01:03:35,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:03:35,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-07-22 01:03:35,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-07-22 01:03:35,370 INFO L87 Difference]: Start difference. First operand 2209 states and 3183 transitions. Second operand has 94 states, 93 states have (on average 5.645161290322581) internal successors, (525), 94 states have internal predecessors, (525), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2022-07-22 01:03:42,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:03:42,183 INFO L93 Difference]: Finished difference Result 3622 states and 5491 transitions. [2022-07-22 01:03:42,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2022-07-22 01:03:42,184 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 5.645161290322581) internal successors, (525), 94 states have internal predecessors, (525), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) Word has length 851 [2022-07-22 01:03:42,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:03:42,197 INFO L225 Difference]: With dead ends: 3622 [2022-07-22 01:03:42,197 INFO L226 Difference]: Without dead ends: 3621 [2022-07-22 01:03:42,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1791 GetRequests, 1608 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7507 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=10809, Invalid=23231, Unknown=0, NotChecked=0, Total=34040 [2022-07-22 01:03:42,206 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 7765 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 5684 mSolverCounterSat, 4459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7775 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 10143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4459 IncrementalHoareTripleChecker+Valid, 5684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-22 01:03:42,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7775 Valid, 2102 Invalid, 10143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4459 Valid, 5684 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-22 01:03:42,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3621 states. [2022-07-22 01:03:42,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3621 to 3601. [2022-07-22 01:03:42,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2665 states have (on average 1.4060037523452158) internal successors, (3747), 3432 states have internal predecessors, (3747), 841 states have call successors, (841), 93 states have call predecessors, (841), 94 states have return successors, (851), 121 states have call predecessors, (851), 841 states have call successors, (851) [2022-07-22 01:03:42,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5439 transitions. [2022-07-22 01:03:42,366 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5439 transitions. Word has length 851 [2022-07-22 01:03:42,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:03:42,367 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 5439 transitions. [2022-07-22 01:03:42,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 5.645161290322581) internal successors, (525), 94 states have internal predecessors, (525), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2022-07-22 01:03:42,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5439 transitions. [2022-07-22 01:03:42,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1140 [2022-07-22 01:03:42,386 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:03:42,387 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:03:42,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-22 01:03:42,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-07-22 01:03:42,611 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:03:42,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:03:42,612 INFO L85 PathProgramCache]: Analyzing trace with hash 812373839, now seen corresponding path program 3 times [2022-07-22 01:03:42,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:03:42,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305878684] [2022-07-22 01:03:42,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:03:42,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:03:43,297 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:03:43,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1744648339] [2022-07-22 01:03:43,298 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 01:03:43,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:03:43,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:03:43,300 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:03:43,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-22 01:03:51,138 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-22 01:03:51,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:03:51,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 1567 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 01:03:51,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:03:51,236 INFO L134 CoverageAnalysis]: Checked inductivity of 15073 backedges. 452 proven. 0 refuted. 0 times theorem prover too weak. 14621 trivial. 0 not checked. [2022-07-22 01:03:51,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:03:51,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:03:51,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305878684] [2022-07-22 01:03:51,237 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:03:51,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744648339] [2022-07-22 01:03:51,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744648339] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:03:51,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:03:51,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 01:03:51,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911309668] [2022-07-22 01:03:51,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:03:51,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 01:03:51,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:03:51,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 01:03:51,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 01:03:51,239 INFO L87 Difference]: Start difference. First operand 3601 states and 5439 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:03:51,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:03:51,805 INFO L93 Difference]: Finished difference Result 6476 states and 9925 transitions. [2022-07-22 01:03:51,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 01:03:51,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 1139 [2022-07-22 01:03:51,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:03:51,832 INFO L225 Difference]: With dead ends: 6476 [2022-07-22 01:03:51,832 INFO L226 Difference]: Without dead ends: 6475 [2022-07-22 01:03:51,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1147 GetRequests, 1138 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-07-22 01:03:51,836 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 179 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 01:03:51,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 413 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 01:03:51,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6475 states. [2022-07-22 01:03:52,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6475 to 6012. [2022-07-22 01:03:52,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6012 states, 4372 states have (on average 1.4533394327538884) internal successors, (6354), 5664 states have internal predecessors, (6354), 1456 states have call successors, (1456), 182 states have call predecessors, (1456), 183 states have return successors, (1466), 210 states have call predecessors, (1466), 1456 states have call successors, (1466) [2022-07-22 01:03:52,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6012 states to 6012 states and 9276 transitions. [2022-07-22 01:03:52,182 INFO L78 Accepts]: Start accepts. Automaton has 6012 states and 9276 transitions. Word has length 1139 [2022-07-22 01:03:52,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:03:52,183 INFO L495 AbstractCegarLoop]: Abstraction has 6012 states and 9276 transitions. [2022-07-22 01:03:52,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:03:52,184 INFO L276 IsEmpty]: Start isEmpty. Operand 6012 states and 9276 transitions. [2022-07-22 01:03:52,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2022-07-22 01:03:52,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:03:52,207 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 44, 44, 44, 15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2022-07-22 01:03:52,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-22 01:03:52,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-22 01:03:52,431 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:03:52,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:03:52,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1701908781, now seen corresponding path program 1 times [2022-07-22 01:03:52,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:03:52,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873085642] [2022-07-22 01:03:52,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:03:52,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:03:53,263 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:03:53,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1071762482] [2022-07-22 01:03:53,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:03:53,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:03:53,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:03:53,265 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:03:53,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-22 01:04:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:04:04,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 15864 conjuncts, 95 conjunts are in the unsatisfiable core [2022-07-22 01:04:04,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:04:06,594 INFO L134 CoverageAnalysis]: Checked inductivity of 15030 backedges. 0 proven. 12424 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 01:04:06,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:04:11,656 INFO L134 CoverageAnalysis]: Checked inductivity of 15030 backedges. 0 proven. 8284 refuted. 0 times theorem prover too weak. 6746 trivial. 0 not checked. [2022-07-22 01:04:11,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:04:11,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873085642] [2022-07-22 01:04:11,657 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:04:11,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071762482] [2022-07-22 01:04:11,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071762482] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:04:11,658 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:04:11,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 95] total 189 [2022-07-22 01:04:11,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985379197] [2022-07-22 01:04:11,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:04:11,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-07-22 01:04:11,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:04:11,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-07-22 01:04:11,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-07-22 01:04:11,677 INFO L87 Difference]: Start difference. First operand 6012 states and 9276 transitions. Second operand has 190 states, 189 states have (on average 4.957671957671957) internal successors, (937), 190 states have internal predecessors, (937), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) [2022-07-22 01:04:38,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:04:38,299 INFO L93 Difference]: Finished difference Result 11444 states and 18040 transitions. [2022-07-22 01:04:38,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 284 states. [2022-07-22 01:04:38,300 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 4.957671957671957) internal successors, (937), 190 states have internal predecessors, (937), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) Word has length 1141 [2022-07-22 01:04:38,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:04:38,341 INFO L225 Difference]: With dead ends: 11444 [2022-07-22 01:04:38,341 INFO L226 Difference]: Without dead ends: 11443 [2022-07-22 01:04:38,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2467 GetRequests, 2092 SyntacticMatches, 0 SemanticMatches, 375 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32251 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=44649, Invalid=97103, Unknown=0, NotChecked=0, Total=141752 [2022-07-22 01:04:38,356 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 19540 mSDsluCounter, 3337 mSDsCounter, 0 mSdLazyCounter, 10536 mSolverCounterSat, 11461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19550 SdHoareTripleChecker+Valid, 3490 SdHoareTripleChecker+Invalid, 21997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11461 IncrementalHoareTripleChecker+Valid, 10536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-07-22 01:04:38,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19550 Valid, 3490 Invalid, 21997 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11461 Valid, 10536 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-07-22 01:04:38,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11443 states. [2022-07-22 01:04:39,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11443 to 11388. [2022-07-22 01:04:39,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11388 states, 8020 states have (on average 1.4865336658354116) internal successors, (11922), 10704 states have internal predecessors, (11922), 2992 states have call successors, (2992), 374 states have call predecessors, (2992), 375 states have return successors, (3002), 402 states have call predecessors, (3002), 2992 states have call successors, (3002) [2022-07-22 01:04:39,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11388 states to 11388 states and 17916 transitions. [2022-07-22 01:04:39,151 INFO L78 Accepts]: Start accepts. Automaton has 11388 states and 17916 transitions. Word has length 1141 [2022-07-22 01:04:39,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:04:39,152 INFO L495 AbstractCegarLoop]: Abstraction has 11388 states and 17916 transitions. [2022-07-22 01:04:39,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 4.957671957671957) internal successors, (937), 190 states have internal predecessors, (937), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) [2022-07-22 01:04:39,153 INFO L276 IsEmpty]: Start isEmpty. Operand 11388 states and 17916 transitions. [2022-07-22 01:04:39,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1718 [2022-07-22 01:04:39,198 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:04:39,199 INFO L195 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 94, 94, 92, 92, 92, 15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2022-07-22 01:04:39,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-22 01:04:39,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:39,427 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:04:39,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:04:39,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1115136211, now seen corresponding path program 2 times [2022-07-22 01:04:39,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:04:39,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414775272] [2022-07-22 01:04:39,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:04:39,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:04:40,116 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:04:40,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [71506199] [2022-07-22 01:04:40,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 01:04:40,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:04:40,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:04:40,128 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:04:40,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-22 01:04:51,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 01:04:51,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:04:51,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 17592 conjuncts, 191 conjunts are in the unsatisfiable core [2022-07-22 01:04:51,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:04:58,123 INFO L134 CoverageAnalysis]: Checked inductivity of 55062 backedges. 0 proven. 52456 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2022-07-22 01:04:58,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:05:11,448 INFO L134 CoverageAnalysis]: Checked inductivity of 55062 backedges. 0 proven. 34972 refuted. 0 times theorem prover too weak. 20090 trivial. 0 not checked. [2022-07-22 01:05:11,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:05:11,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414775272] [2022-07-22 01:05:11,450 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:05:11,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71506199] [2022-07-22 01:05:11,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71506199] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:05:11,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:05:11,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [190, 191] total 381 [2022-07-22 01:05:11,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512474380] [2022-07-22 01:05:11,451 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:05:11,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-07-22 01:05:11,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:05:11,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-07-22 01:05:11,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2022-07-22 01:05:11,483 INFO L87 Difference]: Start difference. First operand 11388 states and 17916 transitions. Second operand has 382 states, 381 states have (on average 4.601049868766404) internal successors, (1753), 382 states have internal predecessors, (1753), 190 states have call successors, (192), 96 states have call predecessors, (192), 96 states have return successors, (192), 190 states have call predecessors, (192), 190 states have call successors, (192)