./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 65cc93bea37c503291576929a444106bffa9d5b7b84b8d294ee7e7120b60ffa5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 23:46:21,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 23:46:21,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 23:46:21,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 23:46:21,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 23:46:21,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 23:46:21,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 23:46:21,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 23:46:21,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 23:46:21,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 23:46:21,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 23:46:21,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 23:46:21,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 23:46:21,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 23:46:21,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 23:46:21,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 23:46:21,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 23:46:21,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 23:46:21,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 23:46:21,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 23:46:21,192 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 23:46:21,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 23:46:21,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 23:46:21,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 23:46:21,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 23:46:21,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 23:46:21,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 23:46:21,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 23:46:21,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 23:46:21,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 23:46:21,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 23:46:21,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 23:46:21,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 23:46:21,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 23:46:21,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 23:46:21,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 23:46:21,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 23:46:21,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 23:46:21,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 23:46:21,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 23:46:21,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 23:46:21,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 23:46:21,211 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-13 23:46:21,234 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 23:46:21,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 23:46:21,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 23:46:21,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 23:46:21,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 23:46:21,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 23:46:21,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 23:46:21,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 23:46:21,237 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 23:46:21,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 23:46:21,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 23:46:21,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 23:46:21,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 23:46:21,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 23:46:21,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 23:46:21,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 23:46:21,239 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 23:46:21,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 23:46:21,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 23:46:21,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 23:46:21,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 23:46:21,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 23:46:21,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 23:46:21,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 23:46:21,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 23:46:21,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 23:46:21,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 23:46:21,240 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 23:46:21,240 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 23:46:21,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 23:46:21,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65cc93bea37c503291576929a444106bffa9d5b7b84b8d294ee7e7120b60ffa5 [2022-07-13 23:46:21,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 23:46:21,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 23:46:21,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 23:46:21,474 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 23:46:21,474 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 23:46:21,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2022-07-13 23:46:21,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4de21c0aa/e97658a21b524b399ca8e9c78990c2ce/FLAG8d6c9f0f1 [2022-07-13 23:46:22,026 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 23:46:22,027 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2022-07-13 23:46:22,062 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4de21c0aa/e97658a21b524b399ca8e9c78990c2ce/FLAG8d6c9f0f1 [2022-07-13 23:46:22,298 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4de21c0aa/e97658a21b524b399ca8e9c78990c2ce [2022-07-13 23:46:22,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 23:46:22,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 23:46:22,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 23:46:22,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 23:46:22,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 23:46:22,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:46:22" (1/1) ... [2022-07-13 23:46:22,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae42af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:46:22, skipping insertion in model container [2022-07-13 23:46:22,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:46:22" (1/1) ... [2022-07-13 23:46:22,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 23:46:22,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 23:46:23,162 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/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i[138616,138629] [2022-07-13 23:46:23,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:46:23,252 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 23:46:23,409 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/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i[138616,138629] [2022-07-13 23:46:23,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:46:23,464 INFO L208 MainTranslator]: Completed translation [2022-07-13 23:46:23,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:46:23 WrapperNode [2022-07-13 23:46:23,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 23:46:23,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 23:46:23,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 23:46:23,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 23:46:23,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:46:23" (1/1) ... [2022-07-13 23:46:23,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:46:23" (1/1) ... [2022-07-13 23:46:23,580 INFO L137 Inliner]: procedures = 161, calls = 836, calls flagged for inlining = 53, calls inlined = 28, statements flattened = 1124 [2022-07-13 23:46:23,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 23:46:23,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 23:46:23,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 23:46:23,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 23:46:23,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:46:23" (1/1) ... [2022-07-13 23:46:23,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:46:23" (1/1) ... [2022-07-13 23:46:23,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:46:23" (1/1) ... [2022-07-13 23:46:23,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:46:23" (1/1) ... [2022-07-13 23:46:23,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:46:23" (1/1) ... [2022-07-13 23:46:23,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:46:23" (1/1) ... [2022-07-13 23:46:23,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:46:23" (1/1) ... [2022-07-13 23:46:23,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 23:46:23,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 23:46:23,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 23:46:23,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 23:46:23,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:46:23" (1/1) ... [2022-07-13 23:46:23,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 23:46:23,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:46:23,728 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) [2022-07-13 23:46:23,749 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 [2022-07-13 23:46:23,774 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2022-07-13 23:46:23,774 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2022-07-13 23:46:23,774 INFO L130 BoogieDeclarations]: Found specification of procedure pf_getgeo [2022-07-13 23:46:23,774 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_getgeo [2022-07-13 23:46:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-07-13 23:46:23,775 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-07-13 23:46:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2022-07-13 23:46:23,775 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2022-07-13 23:46:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2022-07-13 23:46:23,775 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2022-07-13 23:46:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-13 23:46:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pf_mutex [2022-07-13 23:46:23,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pf_mutex [2022-07-13 23:46:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure pf_reset [2022-07-13 23:46:23,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_reset [2022-07-13 23:46:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 23:46:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2022-07-13 23:46:23,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2022-07-13 23:46:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure pf_wait [2022-07-13 23:46:23,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_wait [2022-07-13 23:46:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-07-13 23:46:23,777 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-07-13 23:46:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-13 23:46:23,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-13 23:46:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pf_mutex [2022-07-13 23:46:23,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pf_mutex [2022-07-13 23:46:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure pf_check_events [2022-07-13 23:46:23,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_check_events [2022-07-13 23:46:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-07-13 23:46:23,777 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-07-13 23:46:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 23:46:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-13 23:46:23,778 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-13 23:46:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-13 23:46:23,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-13 23:46:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-07-13 23:46:23,778 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-07-13 23:46:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure pf_req_sense [2022-07-13 23:46:23,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_req_sense [2022-07-13 23:46:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure pf_completion [2022-07-13 23:46:23,779 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_completion [2022-07-13 23:46:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 23:46:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-13 23:46:23,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-13 23:46:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 23:46:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-13 23:46:23,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-13 23:46:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 23:46:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 23:46:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure pf_atapi [2022-07-13 23:46:23,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_atapi [2022-07-13 23:46:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure pf_command [2022-07-13 23:46:23,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_command [2022-07-13 23:46:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure pf_probe [2022-07-13 23:46:23,781 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_probe [2022-07-13 23:46:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 23:46:23,782 INFO L130 BoogieDeclarations]: Found specification of procedure pf_identify [2022-07-13 23:46:23,782 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_identify [2022-07-13 23:46:23,782 INFO L130 BoogieDeclarations]: Found specification of procedure pf_sleep [2022-07-13 23:46:23,783 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_sleep [2022-07-13 23:46:23,784 INFO L130 BoogieDeclarations]: Found specification of procedure pf_mode_sense [2022-07-13 23:46:23,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_mode_sense [2022-07-13 23:46:23,784 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2022-07-13 23:46:23,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2022-07-13 23:46:23,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 23:46:23,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 23:46:23,784 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2022-07-13 23:46:23,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2022-07-13 23:46:23,784 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2022-07-13 23:46:23,785 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2022-07-13 23:46:23,785 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2022-07-13 23:46:23,785 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2022-07-13 23:46:23,785 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-07-13 23:46:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-07-13 23:46:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2022-07-13 23:46:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2022-07-13 23:46:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure pf_lock [2022-07-13 23:46:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_lock [2022-07-13 23:46:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 23:46:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure xl [2022-07-13 23:46:23,786 INFO L138 BoogieDeclarations]: Found implementation of procedure xl [2022-07-13 23:46:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 23:46:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 23:46:23,787 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2022-07-13 23:46:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2022-07-13 23:46:23,787 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ioctl [2022-07-13 23:46:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ioctl [2022-07-13 23:46:24,035 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 23:46:24,040 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 23:46:26,246 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 23:46:26,261 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 23:46:26,261 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-13 23:46:26,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:46:26 BoogieIcfgContainer [2022-07-13 23:46:26,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 23:46:26,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 23:46:26,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 23:46:26,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 23:46:26,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 11:46:22" (1/3) ... [2022-07-13 23:46:26,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62763dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:46:26, skipping insertion in model container [2022-07-13 23:46:26,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:46:23" (2/3) ... [2022-07-13 23:46:26,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62763dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:46:26, skipping insertion in model container [2022-07-13 23:46:26,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:46:26" (3/3) ... [2022-07-13 23:46:26,274 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2022-07-13 23:46:26,283 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 23:46:26,284 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 23:46:26,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 23:46:26,379 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=PETRI_NET, 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@53858a53, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@484eaa5e [2022-07-13 23:46:26,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 23:46:26,389 INFO L276 IsEmpty]: Start isEmpty. Operand has 524 states, 375 states have (on average 1.3706666666666667) internal successors, (514), 389 states have internal predecessors, (514), 112 states have call successors, (112), 37 states have call predecessors, (112), 37 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2022-07-13 23:46:26,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-13 23:46:26,397 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:26,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:46:26,398 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:26,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:26,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1009188828, now seen corresponding path program 1 times [2022-07-13 23:46:26,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:26,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080739886] [2022-07-13 23:46:26,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:26,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:26,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:46:26,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:26,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080739886] [2022-07-13 23:46:26,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080739886] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:46:26,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:46:26,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:46:26,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484892533] [2022-07-13 23:46:26,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:46:26,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:46:26,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:26,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:46:26,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:46:26,791 INFO L87 Difference]: Start difference. First operand has 524 states, 375 states have (on average 1.3706666666666667) internal successors, (514), 389 states have internal predecessors, (514), 112 states have call successors, (112), 37 states have call predecessors, (112), 37 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 23:46:26,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:46:26,954 INFO L93 Difference]: Finished difference Result 1439 states and 2086 transitions. [2022-07-13 23:46:26,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:46:26,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-07-13 23:46:26,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:46:26,980 INFO L225 Difference]: With dead ends: 1439 [2022-07-13 23:46:26,980 INFO L226 Difference]: Without dead ends: 910 [2022-07-13 23:46:26,989 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 [2022-07-13 23:46:26,994 INFO L413 NwaCegarLoop]: 1007 mSDtfsCounter, 542 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:46:26,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 1684 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:46:27,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-07-13 23:46:27,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 896. [2022-07-13 23:46:27,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 644 states have (on average 1.3338509316770186) internal successors, (859), 657 states have internal predecessors, (859), 187 states have call successors, (187), 65 states have call predecessors, (187), 64 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2022-07-13 23:46:27,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1227 transitions. [2022-07-13 23:46:27,095 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1227 transitions. Word has length 16 [2022-07-13 23:46:27,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:46:27,096 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1227 transitions. [2022-07-13 23:46:27,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 23:46:27,096 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1227 transitions. [2022-07-13 23:46:27,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 23:46:27,097 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:27,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:46:27,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 23:46:27,098 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:27,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:27,099 INFO L85 PathProgramCache]: Analyzing trace with hash -395988183, now seen corresponding path program 1 times [2022-07-13 23:46:27,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:27,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999451203] [2022-07-13 23:46:27,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:27,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:27,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:46:27,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:27,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999451203] [2022-07-13 23:46:27,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999451203] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:46:27,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:46:27,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 23:46:27,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495235018] [2022-07-13 23:46:27,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:46:27,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:46:27,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:27,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:46:27,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:46:27,218 INFO L87 Difference]: Start difference. First operand 896 states and 1227 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 23:46:27,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:46:27,265 INFO L93 Difference]: Finished difference Result 1789 states and 2451 transitions. [2022-07-13 23:46:27,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:46:27,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-13 23:46:27,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:46:27,272 INFO L225 Difference]: With dead ends: 1789 [2022-07-13 23:46:27,273 INFO L226 Difference]: Without dead ends: 896 [2022-07-13 23:46:27,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:46:27,277 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 692 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:46:27,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 701 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:46:27,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2022-07-13 23:46:27,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 896. [2022-07-13 23:46:27,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 644 states have (on average 1.3307453416149069) internal successors, (857), 657 states have internal predecessors, (857), 187 states have call successors, (187), 65 states have call predecessors, (187), 64 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2022-07-13 23:46:27,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1225 transitions. [2022-07-13 23:46:27,328 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1225 transitions. Word has length 18 [2022-07-13 23:46:27,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:46:27,329 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1225 transitions. [2022-07-13 23:46:27,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 23:46:27,329 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1225 transitions. [2022-07-13 23:46:27,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-13 23:46:27,334 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:27,334 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] [2022-07-13 23:46:27,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 23:46:27,339 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:27,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:27,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1972979261, now seen corresponding path program 1 times [2022-07-13 23:46:27,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:27,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779411562] [2022-07-13 23:46:27,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:27,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:27,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 23:46:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:27,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:46:27,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:27,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779411562] [2022-07-13 23:46:27,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779411562] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:46:27,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:46:27,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:46:27,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071321651] [2022-07-13 23:46:27,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:46:27,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:46:27,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:27,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:46:27,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:46:27,417 INFO L87 Difference]: Start difference. First operand 896 states and 1225 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:46:27,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:46:27,477 INFO L93 Difference]: Finished difference Result 2152 states and 2933 transitions. [2022-07-13 23:46:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:46:27,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-07-13 23:46:27,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:46:27,483 INFO L225 Difference]: With dead ends: 2152 [2022-07-13 23:46:27,484 INFO L226 Difference]: Without dead ends: 1259 [2022-07-13 23:46:27,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:46:27,487 INFO L413 NwaCegarLoop]: 1124 mSDtfsCounter, 658 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:46:27,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1606 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:46:27,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2022-07-13 23:46:27,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1235. [2022-07-13 23:46:27,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 881 states have (on average 1.3280363223609535) internal successors, (1170), 898 states have internal predecessors, (1170), 258 states have call successors, (258), 96 states have call predecessors, (258), 95 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2022-07-13 23:46:27,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1680 transitions. [2022-07-13 23:46:27,575 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1680 transitions. Word has length 22 [2022-07-13 23:46:27,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:46:27,575 INFO L495 AbstractCegarLoop]: Abstraction has 1235 states and 1680 transitions. [2022-07-13 23:46:27,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:46:27,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1680 transitions. [2022-07-13 23:46:27,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-13 23:46:27,576 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:27,576 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] [2022-07-13 23:46:27,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 23:46:27,579 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:27,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:27,580 INFO L85 PathProgramCache]: Analyzing trace with hash -184420453, now seen corresponding path program 1 times [2022-07-13 23:46:27,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:27,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555538834] [2022-07-13 23:46:27,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:27,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:27,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:46:27,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:27,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555538834] [2022-07-13 23:46:27,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555538834] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:46:27,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:46:27,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:46:27,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095676419] [2022-07-13 23:46:27,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:46:27,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:46:27,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:27,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:46:27,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:46:27,636 INFO L87 Difference]: Start difference. First operand 1235 states and 1680 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 23:46:27,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:46:27,767 INFO L93 Difference]: Finished difference Result 2483 states and 3381 transitions. [2022-07-13 23:46:27,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:46:27,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-07-13 23:46:27,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:46:27,774 INFO L225 Difference]: With dead ends: 2483 [2022-07-13 23:46:27,774 INFO L226 Difference]: Without dead ends: 1251 [2022-07-13 23:46:27,781 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 [2022-07-13 23:46:27,783 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 10 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 23:46:27,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1394 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 23:46:27,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2022-07-13 23:46:27,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1237. [2022-07-13 23:46:27,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 883 states have (on average 1.3272933182332955) internal successors, (1172), 900 states have internal predecessors, (1172), 258 states have call successors, (258), 96 states have call predecessors, (258), 95 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2022-07-13 23:46:27,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 1682 transitions. [2022-07-13 23:46:27,828 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 1682 transitions. Word has length 25 [2022-07-13 23:46:27,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:46:27,828 INFO L495 AbstractCegarLoop]: Abstraction has 1237 states and 1682 transitions. [2022-07-13 23:46:27,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 23:46:27,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 1682 transitions. [2022-07-13 23:46:27,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-13 23:46:27,830 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:27,830 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] [2022-07-13 23:46:27,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 23:46:27,830 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:27,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:27,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1602018988, now seen corresponding path program 1 times [2022-07-13 23:46:27,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:27,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766653501] [2022-07-13 23:46:27,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:27,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:46:27,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:27,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766653501] [2022-07-13 23:46:27,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766653501] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:46:27,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191733824] [2022-07-13 23:46:27,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:27,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:27,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:46:27,943 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) [2022-07-13 23:46:27,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 23:46:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:28,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 23:46:28,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:46:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 23:46:28,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:46:28,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191733824] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:46:28,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:46:28,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-13 23:46:28,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623674035] [2022-07-13 23:46:28,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:46:28,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:46:28,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:28,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:46:28,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:46:28,291 INFO L87 Difference]: Start difference. First operand 1237 states and 1682 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 23:46:28,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:46:28,374 INFO L93 Difference]: Finished difference Result 2509 states and 3421 transitions. [2022-07-13 23:46:28,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:46:28,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-07-13 23:46:28,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:46:28,380 INFO L225 Difference]: With dead ends: 2509 [2022-07-13 23:46:28,380 INFO L226 Difference]: Without dead ends: 1275 [2022-07-13 23:46:28,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:46:28,384 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 16 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:46:28,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1405 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:46:28,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2022-07-13 23:46:28,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1241. [2022-07-13 23:46:28,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 887 states have (on average 1.3258173618940248) internal successors, (1176), 904 states have internal predecessors, (1176), 258 states have call successors, (258), 96 states have call predecessors, (258), 95 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2022-07-13 23:46:28,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1686 transitions. [2022-07-13 23:46:28,418 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1686 transitions. Word has length 29 [2022-07-13 23:46:28,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:46:28,418 INFO L495 AbstractCegarLoop]: Abstraction has 1241 states and 1686 transitions. [2022-07-13 23:46:28,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 23:46:28,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1686 transitions. [2022-07-13 23:46:28,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-13 23:46:28,419 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:28,419 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] [2022-07-13 23:46:28,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 23:46:28,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:28,637 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:28,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:28,638 INFO L85 PathProgramCache]: Analyzing trace with hash -400370473, now seen corresponding path program 1 times [2022-07-13 23:46:28,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:28,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165777009] [2022-07-13 23:46:28,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:28,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:28,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 23:46:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:28,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:46:28,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:28,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165777009] [2022-07-13 23:46:28,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165777009] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:46:28,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045096865] [2022-07-13 23:46:28,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:28,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:28,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:46:28,720 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) [2022-07-13 23:46:28,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 23:46:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:28,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:46:28,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:46:29,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 23:46:29,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:46:29,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045096865] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:46:29,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:46:29,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-13 23:46:29,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681296742] [2022-07-13 23:46:29,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:46:29,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:46:29,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:29,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:46:29,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:46:29,018 INFO L87 Difference]: Start difference. First operand 1241 states and 1686 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:46:29,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:46:29,085 INFO L93 Difference]: Finished difference Result 2783 states and 3848 transitions. [2022-07-13 23:46:29,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:46:29,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-07-13 23:46:29,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:46:29,094 INFO L225 Difference]: With dead ends: 2783 [2022-07-13 23:46:29,095 INFO L226 Difference]: Without dead ends: 1545 [2022-07-13 23:46:29,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:46:29,100 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 179 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:46:29,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1461 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:46:29,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2022-07-13 23:46:29,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1273. [2022-07-13 23:46:29,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1273 states, 911 states have (on average 1.3282107574094402) internal successors, (1210), 928 states have internal predecessors, (1210), 266 states have call successors, (266), 96 states have call predecessors, (266), 95 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2022-07-13 23:46:29,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1736 transitions. [2022-07-13 23:46:29,142 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1736 transitions. Word has length 34 [2022-07-13 23:46:29,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:46:29,142 INFO L495 AbstractCegarLoop]: Abstraction has 1273 states and 1736 transitions. [2022-07-13 23:46:29,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 23:46:29,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1736 transitions. [2022-07-13 23:46:29,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-13 23:46:29,145 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:29,146 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] [2022-07-13 23:46:29,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-13 23:46:29,363 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,SelfDestructingSolverStorable5 [2022-07-13 23:46:29,366 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:29,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:29,366 INFO L85 PathProgramCache]: Analyzing trace with hash 538936913, now seen corresponding path program 1 times [2022-07-13 23:46:29,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:29,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275214358] [2022-07-13 23:46:29,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:29,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:29,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 23:46:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:29,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 23:46:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:29,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 23:46:29,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:29,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275214358] [2022-07-13 23:46:29,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275214358] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:46:29,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087177788] [2022-07-13 23:46:29,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:29,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:29,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:46:29,496 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) [2022-07-13 23:46:29,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 23:46:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:29,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:46:29,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:46:29,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 23:46:29,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:46:29,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087177788] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:46:29,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:46:29,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-13 23:46:29,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098147311] [2022-07-13 23:46:29,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:46:29,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:46:29,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:29,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:46:29,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:46:29,764 INFO L87 Difference]: Start difference. First operand 1273 states and 1736 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 23:46:29,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:46:29,823 INFO L93 Difference]: Finished difference Result 1295 states and 1762 transitions. [2022-07-13 23:46:29,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:46:29,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-07-13 23:46:29,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:46:29,830 INFO L225 Difference]: With dead ends: 1295 [2022-07-13 23:46:29,830 INFO L226 Difference]: Without dead ends: 1284 [2022-07-13 23:46:29,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:46:29,831 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 697 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:46:29,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 727 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:46:29,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2022-07-13 23:46:29,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1273. [2022-07-13 23:46:29,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1273 states, 911 states have (on average 1.3271130625686058) internal successors, (1209), 928 states have internal predecessors, (1209), 266 states have call successors, (266), 96 states have call predecessors, (266), 95 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2022-07-13 23:46:29,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1735 transitions. [2022-07-13 23:46:29,865 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1735 transitions. Word has length 43 [2022-07-13 23:46:29,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:46:29,865 INFO L495 AbstractCegarLoop]: Abstraction has 1273 states and 1735 transitions. [2022-07-13 23:46:29,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 23:46:29,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1735 transitions. [2022-07-13 23:46:29,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-13 23:46:29,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:29,866 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] [2022-07-13 23:46:29,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 23:46:30,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:30,081 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:30,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:30,081 INFO L85 PathProgramCache]: Analyzing trace with hash 596195215, now seen corresponding path program 1 times [2022-07-13 23:46:30,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:30,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300992618] [2022-07-13 23:46:30,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:30,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:30,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 23:46:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:30,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 23:46:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:30,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 23:46:30,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:30,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300992618] [2022-07-13 23:46:30,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300992618] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:46:30,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158018179] [2022-07-13 23:46:30,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:30,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:30,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:46:30,157 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) [2022-07-13 23:46:30,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 23:46:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:30,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:46:30,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:46:30,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 23:46:30,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:46:30,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158018179] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:46:30,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:46:30,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-13 23:46:30,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366417599] [2022-07-13 23:46:30,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:46:30,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:46:30,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:30,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:46:30,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:46:30,448 INFO L87 Difference]: Start difference. First operand 1273 states and 1735 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 23:46:30,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:46:30,482 INFO L93 Difference]: Finished difference Result 1275 states and 1736 transitions. [2022-07-13 23:46:30,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:46:30,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-07-13 23:46:30,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:46:30,487 INFO L225 Difference]: With dead ends: 1275 [2022-07-13 23:46:30,487 INFO L226 Difference]: Without dead ends: 1272 [2022-07-13 23:46:30,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:46:30,488 INFO L413 NwaCegarLoop]: 699 mSDtfsCounter, 660 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:46:30,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 699 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:46:30,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2022-07-13 23:46:30,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1272. [2022-07-13 23:46:30,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 911 states have (on average 1.3260153677277717) internal successors, (1208), 927 states have internal predecessors, (1208), 265 states have call successors, (265), 96 states have call predecessors, (265), 95 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2022-07-13 23:46:30,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1733 transitions. [2022-07-13 23:46:30,522 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1733 transitions. Word has length 43 [2022-07-13 23:46:30,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:46:30,522 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 1733 transitions. [2022-07-13 23:46:30,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 23:46:30,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1733 transitions. [2022-07-13 23:46:30,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-13 23:46:30,523 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:30,523 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] [2022-07-13 23:46:30,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 23:46:30,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:30,741 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:30,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:30,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1301881938, now seen corresponding path program 1 times [2022-07-13 23:46:30,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:30,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828071873] [2022-07-13 23:46:30,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:30,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:30,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 23:46:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:30,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 23:46:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:30,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 23:46:30,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:30,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828071873] [2022-07-13 23:46:30,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828071873] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:46:30,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774862945] [2022-07-13 23:46:30,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:30,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:30,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:46:30,820 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) [2022-07-13 23:46:30,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 23:46:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:31,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 1115 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:46:31,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:46:31,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 23:46:31,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:46:31,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774862945] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:46:31,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:46:31,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-13 23:46:31,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221146911] [2022-07-13 23:46:31,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:46:31,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:46:31,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:31,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:46:31,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:46:31,130 INFO L87 Difference]: Start difference. First operand 1272 states and 1733 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 23:46:31,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:46:31,164 INFO L93 Difference]: Finished difference Result 1274 states and 1734 transitions. [2022-07-13 23:46:31,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:46:31,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2022-07-13 23:46:31,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:46:31,170 INFO L225 Difference]: With dead ends: 1274 [2022-07-13 23:46:31,170 INFO L226 Difference]: Without dead ends: 1271 [2022-07-13 23:46:31,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:46:31,172 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 657 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:46:31,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 697 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:46:31,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2022-07-13 23:46:31,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1271. [2022-07-13 23:46:31,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 911 states have (on average 1.3249176728869374) internal successors, (1207), 926 states have internal predecessors, (1207), 264 states have call successors, (264), 96 states have call predecessors, (264), 95 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2022-07-13 23:46:31,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1731 transitions. [2022-07-13 23:46:31,204 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1731 transitions. Word has length 44 [2022-07-13 23:46:31,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:46:31,205 INFO L495 AbstractCegarLoop]: Abstraction has 1271 states and 1731 transitions. [2022-07-13 23:46:31,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 23:46:31,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1731 transitions. [2022-07-13 23:46:31,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-13 23:46:31,205 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:31,206 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] [2022-07-13 23:46:31,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 23:46:31,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:31,424 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:31,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:31,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1703338738, now seen corresponding path program 1 times [2022-07-13 23:46:31,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:31,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332046127] [2022-07-13 23:46:31,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:31,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:31,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 23:46:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:31,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 23:46:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:31,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 23:46:31,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:31,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332046127] [2022-07-13 23:46:31,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332046127] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:46:31,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268185912] [2022-07-13 23:46:31,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:31,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:31,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:46:31,491 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) [2022-07-13 23:46:31,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 23:46:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:31,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:46:31,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:46:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 23:46:31,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:46:31,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268185912] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:46:31,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:46:31,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-13 23:46:31,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774400529] [2022-07-13 23:46:31,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:46:31,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:46:31,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:31,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:46:31,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:46:31,788 INFO L87 Difference]: Start difference. First operand 1271 states and 1731 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 23:46:31,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:46:31,824 INFO L93 Difference]: Finished difference Result 1273 states and 1732 transitions. [2022-07-13 23:46:31,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:46:31,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-07-13 23:46:31,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:46:31,830 INFO L225 Difference]: With dead ends: 1273 [2022-07-13 23:46:31,830 INFO L226 Difference]: Without dead ends: 1270 [2022-07-13 23:46:31,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:46:31,831 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 654 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:46:31,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 695 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:46:31,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2022-07-13 23:46:31,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1270. [2022-07-13 23:46:31,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 911 states have (on average 1.323819978046103) internal successors, (1206), 925 states have internal predecessors, (1206), 263 states have call successors, (263), 96 states have call predecessors, (263), 95 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2022-07-13 23:46:31,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1729 transitions. [2022-07-13 23:46:31,889 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1729 transitions. Word has length 45 [2022-07-13 23:46:31,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:46:31,889 INFO L495 AbstractCegarLoop]: Abstraction has 1270 states and 1729 transitions. [2022-07-13 23:46:31,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 23:46:31,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1729 transitions. [2022-07-13 23:46:31,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-13 23:46:31,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:31,889 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] [2022-07-13 23:46:31,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 23:46:32,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:32,104 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:32,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:32,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1263602517, now seen corresponding path program 1 times [2022-07-13 23:46:32,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:32,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489543726] [2022-07-13 23:46:32,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:32,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:32,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 23:46:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:32,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 23:46:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:32,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 23:46:32,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:32,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489543726] [2022-07-13 23:46:32,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489543726] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:46:32,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918272051] [2022-07-13 23:46:32,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:32,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:32,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:46:32,168 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) [2022-07-13 23:46:32,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 23:46:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:32,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:46:32,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:46:32,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 23:46:32,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:46:32,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918272051] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:46:32,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:46:32,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-13 23:46:32,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457833295] [2022-07-13 23:46:32,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:46:32,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:46:32,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:32,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:46:32,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:46:32,485 INFO L87 Difference]: Start difference. First operand 1270 states and 1729 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 23:46:32,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:46:32,534 INFO L93 Difference]: Finished difference Result 1480 states and 1999 transitions. [2022-07-13 23:46:32,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:46:32,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2022-07-13 23:46:32,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:46:32,540 INFO L225 Difference]: With dead ends: 1480 [2022-07-13 23:46:32,540 INFO L226 Difference]: Without dead ends: 1448 [2022-07-13 23:46:32,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:46:32,541 INFO L413 NwaCegarLoop]: 949 mSDtfsCounter, 589 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:46:32,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 1272 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:46:32,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2022-07-13 23:46:32,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1448. [2022-07-13 23:46:32,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1029 states have (on average 1.3129251700680271) internal successors, (1351), 1043 states have internal predecessors, (1351), 305 states have call successors, (305), 114 states have call predecessors, (305), 113 states have return successors, (304), 304 states have call predecessors, (304), 304 states have call successors, (304) [2022-07-13 23:46:32,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1960 transitions. [2022-07-13 23:46:32,583 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1960 transitions. Word has length 46 [2022-07-13 23:46:32,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:46:32,583 INFO L495 AbstractCegarLoop]: Abstraction has 1448 states and 1960 transitions. [2022-07-13 23:46:32,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 23:46:32,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1960 transitions. [2022-07-13 23:46:32,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-13 23:46:32,584 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:32,585 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 23:46:32,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-13 23:46:32,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:32,803 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:32,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:32,804 INFO L85 PathProgramCache]: Analyzing trace with hash 127015852, now seen corresponding path program 1 times [2022-07-13 23:46:32,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:32,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275218419] [2022-07-13 23:46:32,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:32,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:32,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 23:46:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:32,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 23:46:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:32,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-13 23:46:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:32,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 23:46:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:32,864 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 23:46:32,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:32,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275218419] [2022-07-13 23:46:32,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275218419] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:46:32,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776144774] [2022-07-13 23:46:32,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:32,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:32,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:46:32,880 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) [2022-07-13 23:46:32,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-13 23:46:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 23:46:33,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:46:33,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 23:46:33,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:46:33,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776144774] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:46:33,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:46:33,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-07-13 23:46:33,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709215414] [2022-07-13 23:46:33,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:46:33,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:46:33,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:33,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:46:33,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 23:46:33,165 INFO L87 Difference]: Start difference. First operand 1448 states and 1960 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-13 23:46:33,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:46:33,268 INFO L93 Difference]: Finished difference Result 3702 states and 4991 transitions. [2022-07-13 23:46:33,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:46:33,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 64 [2022-07-13 23:46:33,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:46:33,278 INFO L225 Difference]: With dead ends: 3702 [2022-07-13 23:46:33,278 INFO L226 Difference]: Without dead ends: 2257 [2022-07-13 23:46:33,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 23:46:33,284 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 614 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:46:33,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 1344 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:46:33,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2022-07-13 23:46:33,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2254. [2022-07-13 23:46:33,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2254 states, 1600 states have (on average 1.306875) internal successors, (2091), 1621 states have internal predecessors, (2091), 467 states have call successors, (467), 187 states have call predecessors, (467), 186 states have return successors, (466), 466 states have call predecessors, (466), 466 states have call successors, (466) [2022-07-13 23:46:33,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 3024 transitions. [2022-07-13 23:46:33,348 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 3024 transitions. Word has length 64 [2022-07-13 23:46:33,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:46:33,348 INFO L495 AbstractCegarLoop]: Abstraction has 2254 states and 3024 transitions. [2022-07-13 23:46:33,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-13 23:46:33,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 3024 transitions. [2022-07-13 23:46:33,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-13 23:46:33,351 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:33,351 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:46:33,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-13 23:46:33,579 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,SelfDestructingSolverStorable11 [2022-07-13 23:46:33,579 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:33,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:33,579 INFO L85 PathProgramCache]: Analyzing trace with hash -898697336, now seen corresponding path program 1 times [2022-07-13 23:46:33,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:33,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383594228] [2022-07-13 23:46:33,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:33,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 23:46:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 23:46:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 23:46:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:46:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 23:46:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:33,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:46:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:46:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:46:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:46:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:33,844 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 23:46:33,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:33,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383594228] [2022-07-13 23:46:33,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383594228] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:46:33,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783668513] [2022-07-13 23:46:33,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:33,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:33,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:46:33,846 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) [2022-07-13 23:46:33,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-13 23:46:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1795 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:46:34,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:46:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 23:46:34,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:46:34,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783668513] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:46:34,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:46:34,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2022-07-13 23:46:34,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950715301] [2022-07-13 23:46:34,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:46:34,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:46:34,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:34,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:46:34,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-13 23:46:34,191 INFO L87 Difference]: Start difference. First operand 2254 states and 3024 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-13 23:46:34,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:46:34,252 INFO L93 Difference]: Finished difference Result 4533 states and 6169 transitions. [2022-07-13 23:46:34,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:46:34,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2022-07-13 23:46:34,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:46:34,261 INFO L225 Difference]: With dead ends: 4533 [2022-07-13 23:46:34,261 INFO L226 Difference]: Without dead ends: 2282 [2022-07-13 23:46:34,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-13 23:46:34,268 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 3 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1325 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 [2022-07-13 23:46:34,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1325 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:46:34,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2022-07-13 23:46:34,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2261. [2022-07-13 23:46:34,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 1607 states have (on average 1.3055382700684506) internal successors, (2098), 1628 states have internal predecessors, (2098), 467 states have call successors, (467), 187 states have call predecessors, (467), 186 states have return successors, (466), 466 states have call predecessors, (466), 466 states have call successors, (466) [2022-07-13 23:46:34,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 3031 transitions. [2022-07-13 23:46:34,334 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 3031 transitions. Word has length 123 [2022-07-13 23:46:34,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:46:34,334 INFO L495 AbstractCegarLoop]: Abstraction has 2261 states and 3031 transitions. [2022-07-13 23:46:34,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-13 23:46:34,335 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 3031 transitions. [2022-07-13 23:46:34,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-13 23:46:34,337 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:34,338 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:46:34,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-13 23:46:34,556 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,SelfDestructingSolverStorable12 [2022-07-13 23:46:34,557 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:34,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:34,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1298455087, now seen corresponding path program 1 times [2022-07-13 23:46:34,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:34,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538950280] [2022-07-13 23:46:34,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:34,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 23:46:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 23:46:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 23:46:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:46:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 23:46:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:46:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:46:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:46:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:46:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 23:46:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:46:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:46:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:46:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:46:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:34,848 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-13 23:46:34,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:34,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538950280] [2022-07-13 23:46:34,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538950280] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:46:34,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727567856] [2022-07-13 23:46:34,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:34,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:34,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:46:34,850 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) [2022-07-13 23:46:34,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-13 23:46:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:35,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 2220 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:46:35,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:46:35,277 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-07-13 23:46:35,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:46:35,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727567856] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:46:35,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:46:35,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2022-07-13 23:46:35,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119481400] [2022-07-13 23:46:35,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:46:35,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:46:35,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:35,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:46:35,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-13 23:46:35,279 INFO L87 Difference]: Start difference. First operand 2261 states and 3031 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-13 23:46:35,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:46:35,461 INFO L93 Difference]: Finished difference Result 4547 states and 6174 transitions. [2022-07-13 23:46:35,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:46:35,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 173 [2022-07-13 23:46:35,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:46:35,470 INFO L225 Difference]: With dead ends: 4547 [2022-07-13 23:46:35,470 INFO L226 Difference]: Without dead ends: 2289 [2022-07-13 23:46:35,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-13 23:46:35,478 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 3 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 23:46:35,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1327 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 23:46:35,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2022-07-13 23:46:35,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 2268. [2022-07-13 23:46:35,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2268 states, 1614 states have (on average 1.3042131350681536) internal successors, (2105), 1635 states have internal predecessors, (2105), 467 states have call successors, (467), 187 states have call predecessors, (467), 186 states have return successors, (466), 466 states have call predecessors, (466), 466 states have call successors, (466) [2022-07-13 23:46:35,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 3038 transitions. [2022-07-13 23:46:35,563 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 3038 transitions. Word has length 173 [2022-07-13 23:46:35,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:46:35,563 INFO L495 AbstractCegarLoop]: Abstraction has 2268 states and 3038 transitions. [2022-07-13 23:46:35,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-13 23:46:35,564 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 3038 transitions. [2022-07-13 23:46:35,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-13 23:46:35,566 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:35,566 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:46:35,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-13 23:46:35,784 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,SelfDestructingSolverStorable13 [2022-07-13 23:46:35,784 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:35,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:35,785 INFO L85 PathProgramCache]: Analyzing trace with hash -390488655, now seen corresponding path program 1 times [2022-07-13 23:46:35,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:35,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015181177] [2022-07-13 23:46:35,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:35,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:35,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 23:46:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:35,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 23:46:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:35,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 23:46:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:35,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:46:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:35,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 23:46:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:35,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:46:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:46:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:46:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:46:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 23:46:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:46:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:46:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:46:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:46:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,108 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-13 23:46:36,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:36,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015181177] [2022-07-13 23:46:36,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015181177] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:46:36,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853236094] [2022-07-13 23:46:36,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:36,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:36,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:46:36,111 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) [2022-07-13 23:46:36,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-13 23:46:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:36,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:46:36,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:46:36,668 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-13 23:46:36,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 23:46:36,851 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-13 23:46:36,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853236094] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 23:46:36,851 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 23:46:36,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-07-13 23:46:36,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382299256] [2022-07-13 23:46:36,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 23:46:36,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 23:46:36,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:36,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 23:46:36,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-13 23:46:36,853 INFO L87 Difference]: Start difference. First operand 2268 states and 3038 transitions. Second operand has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 9 states have internal predecessors, (172), 2 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-13 23:46:50,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:46:50,903 INFO L93 Difference]: Finished difference Result 5681 states and 8129 transitions. [2022-07-13 23:46:50,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 23:46:50,909 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 9 states have internal predecessors, (172), 2 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) Word has length 173 [2022-07-13 23:46:50,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:46:50,925 INFO L225 Difference]: With dead ends: 5681 [2022-07-13 23:46:50,926 INFO L226 Difference]: Without dead ends: 3416 [2022-07-13 23:46:50,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-07-13 23:46:50,936 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 905 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 4502 mSolverCounterSat, 649 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 5151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 649 IncrementalHoareTripleChecker+Valid, 4502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-07-13 23:46:50,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 2200 Invalid, 5151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [649 Valid, 4502 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2022-07-13 23:46:50,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3416 states. [2022-07-13 23:46:51,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3416 to 2368. [2022-07-13 23:46:51,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2368 states, 1707 states have (on average 1.3034563561804335) internal successors, (2225), 1728 states have internal predecessors, (2225), 467 states have call successors, (467), 187 states have call predecessors, (467), 193 states have return successors, (494), 473 states have call predecessors, (494), 466 states have call successors, (494) [2022-07-13 23:46:51,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2368 states to 2368 states and 3186 transitions. [2022-07-13 23:46:51,046 INFO L78 Accepts]: Start accepts. Automaton has 2368 states and 3186 transitions. Word has length 173 [2022-07-13 23:46:51,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:46:51,046 INFO L495 AbstractCegarLoop]: Abstraction has 2368 states and 3186 transitions. [2022-07-13 23:46:51,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 9 states have internal predecessors, (172), 2 states have call successors, (45), 6 states have call predecessors, (45), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-13 23:46:51,047 INFO L276 IsEmpty]: Start isEmpty. Operand 2368 states and 3186 transitions. [2022-07-13 23:46:51,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-13 23:46:51,050 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:46:51,050 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:46:51,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-07-13 23:46:51,263 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,SelfDestructingSolverStorable14 [2022-07-13 23:46:51,263 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:46:51,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:46:51,264 INFO L85 PathProgramCache]: Analyzing trace with hash -706170954, now seen corresponding path program 1 times [2022-07-13 23:46:51,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:46:51,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429272206] [2022-07-13 23:46:51,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:51,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:46:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:46:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 23:46:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 23:46:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 23:46:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 23:46:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:46:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:46:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:46:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 23:46:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:46:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:46:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:46:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:46:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 23:46:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:46:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:46:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:46:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 23:46:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 23:46:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:46:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:46:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:46:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:51,833 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-07-13 23:46:51,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:46:51,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429272206] [2022-07-13 23:46:51,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429272206] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:46:51,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590508131] [2022-07-13 23:46:51,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:46:51,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:46:51,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:46:51,836 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) [2022-07-13 23:46:51,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-13 23:46:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:46:52,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 2702 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:46:52,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:46:52,439 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-07-13 23:46:52,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 23:46:52,752 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-07-13 23:46:52,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590508131] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 23:46:52,752 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 23:46:52,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-07-13 23:46:52,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778900070] [2022-07-13 23:46:52,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 23:46:52,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 23:46:52,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:46:52,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 23:46:52,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-13 23:46:52,754 INFO L87 Difference]: Start difference. First operand 2368 states and 3186 transitions. Second operand has 14 states, 14 states have (on average 13.857142857142858) internal successors, (194), 9 states have internal predecessors, (194), 5 states have call successors, (64), 6 states have call predecessors, (64), 3 states have return successors, (58), 6 states have call predecessors, (58), 5 states have call successors, (58) [2022-07-13 23:47:00,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:47:00,957 INFO L93 Difference]: Finished difference Result 6076 states and 8756 transitions. [2022-07-13 23:47:00,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 23:47:00,957 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 13.857142857142858) internal successors, (194), 9 states have internal predecessors, (194), 5 states have call successors, (64), 6 states have call predecessors, (64), 3 states have return successors, (58), 6 states have call predecessors, (58), 5 states have call successors, (58) Word has length 251 [2022-07-13 23:47:00,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:47:00,995 INFO L225 Difference]: With dead ends: 6076 [2022-07-13 23:47:00,996 INFO L226 Difference]: Without dead ends: 3711 [2022-07-13 23:47:01,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 572 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-07-13 23:47:01,019 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 1103 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 3226 mSolverCounterSat, 865 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 4091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 865 IncrementalHoareTripleChecker+Valid, 3226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-07-13 23:47:01,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 1891 Invalid, 4091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [865 Valid, 3226 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-07-13 23:47:01,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3711 states. [2022-07-13 23:47:01,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3711 to 2649. [2022-07-13 23:47:01,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2649 states, 1919 states have (on average 1.3011985409067222) internal successors, (2497), 1933 states have internal predecessors, (2497), 536 states have call successors, (536), 187 states have call predecessors, (536), 193 states have return successors, (563), 549 states have call predecessors, (563), 535 states have call successors, (563) [2022-07-13 23:47:01,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 3596 transitions. [2022-07-13 23:47:01,145 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 3596 transitions. Word has length 251 [2022-07-13 23:47:01,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:47:01,146 INFO L495 AbstractCegarLoop]: Abstraction has 2649 states and 3596 transitions. [2022-07-13 23:47:01,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.857142857142858) internal successors, (194), 9 states have internal predecessors, (194), 5 states have call successors, (64), 6 states have call predecessors, (64), 3 states have return successors, (58), 6 states have call predecessors, (58), 5 states have call successors, (58) [2022-07-13 23:47:01,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 3596 transitions. [2022-07-13 23:47:01,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-13 23:47:01,173 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:47:01,173 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:47:01,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-13 23:47:01,399 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,SelfDestructingSolverStorable15 [2022-07-13 23:47:01,400 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:47:01,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:47:01,400 INFO L85 PathProgramCache]: Analyzing trace with hash -231589981, now seen corresponding path program 1 times [2022-07-13 23:47:01,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:47:01,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436725024] [2022-07-13 23:47:01,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:01,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:47:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:47:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 23:47:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-13 23:47:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 23:47:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:47:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:47:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 23:47:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 23:47:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:47:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:47:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 23:47:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:47:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 23:47:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 23:47:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:47:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:47:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-07-13 23:47:01,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:47:01,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436725024] [2022-07-13 23:47:01,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436725024] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:47:01,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175282937] [2022-07-13 23:47:01,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:01,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:01,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:47:01,952 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) [2022-07-13 23:47:01,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-13 23:47:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:02,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 2675 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 23:47:02,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:47:02,581 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-13 23:47:02,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:47:02,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175282937] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:47:02,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:47:02,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 11 [2022-07-13 23:47:02,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924929077] [2022-07-13 23:47:02,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:47:02,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:47:02,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:47:02,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:47:02,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-13 23:47:02,583 INFO L87 Difference]: Start difference. First operand 2649 states and 3596 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 23:47:02,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:47:02,665 INFO L93 Difference]: Finished difference Result 5298 states and 7195 transitions. [2022-07-13 23:47:02,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:47:02,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 253 [2022-07-13 23:47:02,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:47:02,683 INFO L225 Difference]: With dead ends: 5298 [2022-07-13 23:47:02,683 INFO L226 Difference]: Without dead ends: 2652 [2022-07-13 23:47:02,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-13 23:47:02,691 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 0 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:47:02,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1327 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:47:02,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2022-07-13 23:47:02,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 2652. [2022-07-13 23:47:02,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2652 states, 1922 states have (on average 1.3007284079084287) internal successors, (2500), 1936 states have internal predecessors, (2500), 536 states have call successors, (536), 187 states have call predecessors, (536), 193 states have return successors, (563), 549 states have call predecessors, (563), 535 states have call successors, (563) [2022-07-13 23:47:02,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 3599 transitions. [2022-07-13 23:47:02,784 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 3599 transitions. Word has length 253 [2022-07-13 23:47:02,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:47:02,784 INFO L495 AbstractCegarLoop]: Abstraction has 2652 states and 3599 transitions. [2022-07-13 23:47:02,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 23:47:02,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 3599 transitions. [2022-07-13 23:47:02,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-13 23:47:02,789 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:47:02,789 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:47:02,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-13 23:47:03,004 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,SelfDestructingSolverStorable16 [2022-07-13 23:47:03,005 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:47:03,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:47:03,005 INFO L85 PathProgramCache]: Analyzing trace with hash 642075621, now seen corresponding path program 1 times [2022-07-13 23:47:03,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:47:03,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631043409] [2022-07-13 23:47:03,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:03,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:47:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:47:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 23:47:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-13 23:47:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 23:47:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:47:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:47:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 23:47:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 23:47:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:47:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:47:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 23:47:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:47:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 23:47:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 23:47:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:47:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:47:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:03,493 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-07-13 23:47:03,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:47:03,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631043409] [2022-07-13 23:47:03,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631043409] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:47:03,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569583872] [2022-07-13 23:47:03,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:03,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:03,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:47:03,506 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) [2022-07-13 23:47:03,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-13 23:47:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 2680 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:47:04,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:47:04,159 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-13 23:47:04,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:47:04,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569583872] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:47:04,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:47:04,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-13 23:47:04,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105331789] [2022-07-13 23:47:04,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:47:04,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:47:04,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:47:04,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:47:04,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-13 23:47:04,161 INFO L87 Difference]: Start difference. First operand 2652 states and 3599 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 23:47:04,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:47:04,303 INFO L93 Difference]: Finished difference Result 5310 states and 7207 transitions. [2022-07-13 23:47:04,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 23:47:04,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 253 [2022-07-13 23:47:04,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:47:04,312 INFO L225 Difference]: With dead ends: 5310 [2022-07-13 23:47:04,312 INFO L226 Difference]: Without dead ends: 2652 [2022-07-13 23:47:04,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-13 23:47:04,319 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 3 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1988 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 [2022-07-13 23:47:04,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1988 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:47:04,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2022-07-13 23:47:04,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 2652. [2022-07-13 23:47:04,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2652 states, 1922 states have (on average 1.2991675338189386) internal successors, (2497), 1936 states have internal predecessors, (2497), 536 states have call successors, (536), 187 states have call predecessors, (536), 193 states have return successors, (563), 549 states have call predecessors, (563), 535 states have call successors, (563) [2022-07-13 23:47:04,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 3596 transitions. [2022-07-13 23:47:04,405 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 3596 transitions. Word has length 253 [2022-07-13 23:47:04,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:47:04,405 INFO L495 AbstractCegarLoop]: Abstraction has 2652 states and 3596 transitions. [2022-07-13 23:47:04,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 23:47:04,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 3596 transitions. [2022-07-13 23:47:04,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-13 23:47:04,409 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:47:04,410 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:47:04,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-13 23:47:04,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:04,627 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:47:04,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:47:04,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1301349854, now seen corresponding path program 1 times [2022-07-13 23:47:04,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:47:04,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614132129] [2022-07-13 23:47:04,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:04,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:47:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:47:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 23:47:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 23:47:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-13 23:47:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 23:47:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:47:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 23:47:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 23:47:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:47:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:47:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 23:47:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:04,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:05,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:05,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:05,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:05,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:47:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:05,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:05,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 23:47:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:05,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:05,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 23:47:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:05,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:05,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:47:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:05,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:47:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:05,086 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-07-13 23:47:05,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:47:05,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614132129] [2022-07-13 23:47:05,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614132129] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:47:05,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436139221] [2022-07-13 23:47:05,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:05,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:05,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:47:05,097 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) [2022-07-13 23:47:05,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-13 23:47:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:05,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 2709 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 23:47:05,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:47:05,804 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-13 23:47:05,804 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:47:05,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436139221] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:47:05,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:47:05,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2022-07-13 23:47:05,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692369542] [2022-07-13 23:47:05,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:47:05,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:47:05,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:47:05,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:47:05,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-13 23:47:05,811 INFO L87 Difference]: Start difference. First operand 2652 states and 3596 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 23:47:05,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:47:05,928 INFO L93 Difference]: Finished difference Result 5340 states and 7246 transitions. [2022-07-13 23:47:05,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:47:05,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 257 [2022-07-13 23:47:05,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:47:05,936 INFO L225 Difference]: With dead ends: 5340 [2022-07-13 23:47:05,937 INFO L226 Difference]: Without dead ends: 2691 [2022-07-13 23:47:05,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-13 23:47:05,946 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 9 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:47:05,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1315 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:47:05,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2022-07-13 23:47:06,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2661. [2022-07-13 23:47:06,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 1931 states have (on average 1.2977731745209735) internal successors, (2506), 1945 states have internal predecessors, (2506), 536 states have call successors, (536), 187 states have call predecessors, (536), 193 states have return successors, (563), 549 states have call predecessors, (563), 535 states have call successors, (563) [2022-07-13 23:47:06,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3605 transitions. [2022-07-13 23:47:06,038 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3605 transitions. Word has length 257 [2022-07-13 23:47:06,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:47:06,038 INFO L495 AbstractCegarLoop]: Abstraction has 2661 states and 3605 transitions. [2022-07-13 23:47:06,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 23:47:06,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3605 transitions. [2022-07-13 23:47:06,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-07-13 23:47:06,045 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:47:06,045 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:47:06,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-13 23:47:06,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:06,260 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:47:06,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:47:06,260 INFO L85 PathProgramCache]: Analyzing trace with hash -290026580, now seen corresponding path program 1 times [2022-07-13 23:47:06,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:47:06,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077501483] [2022-07-13 23:47:06,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:06,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:47:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:47:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 23:47:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 23:47:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:47:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 23:47:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 23:47:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:06,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:47:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 23:47:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 23:47:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:47:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:47:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 23:47:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:47:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 23:47:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 23:47:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:47:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:47:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:06,798 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-07-13 23:47:06,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:47:06,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077501483] [2022-07-13 23:47:06,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077501483] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:47:06,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829501001] [2022-07-13 23:47:06,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:06,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:06,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:47:06,824 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) [2022-07-13 23:47:06,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-13 23:47:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:07,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 2732 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:47:07,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:47:07,592 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-13 23:47:07,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 23:47:07,937 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-13 23:47:07,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829501001] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 23:47:07,937 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 23:47:07,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 17 [2022-07-13 23:47:07,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592220328] [2022-07-13 23:47:07,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 23:47:07,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-13 23:47:07,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:47:07,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-13 23:47:07,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-07-13 23:47:07,940 INFO L87 Difference]: Start difference. First operand 2661 states and 3605 transitions. Second operand has 17 states, 17 states have (on average 12.529411764705882) internal successors, (213), 11 states have internal predecessors, (213), 6 states have call successors, (59), 7 states have call predecessors, (59), 4 states have return successors, (54), 7 states have call predecessors, (54), 6 states have call successors, (54) [2022-07-13 23:47:22,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:47:22,945 INFO L93 Difference]: Finished difference Result 6845 states and 9986 transitions. [2022-07-13 23:47:22,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-13 23:47:22,945 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 12.529411764705882) internal successors, (213), 11 states have internal predecessors, (213), 6 states have call successors, (59), 7 states have call predecessors, (59), 4 states have return successors, (54), 7 states have call predecessors, (54), 6 states have call successors, (54) Word has length 264 [2022-07-13 23:47:22,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:47:22,985 INFO L225 Difference]: With dead ends: 6845 [2022-07-13 23:47:22,985 INFO L226 Difference]: Without dead ends: 4187 [2022-07-13 23:47:23,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 600 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2022-07-13 23:47:23,020 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 964 mSDsluCounter, 2033 mSDsCounter, 0 mSdLazyCounter, 6001 mSolverCounterSat, 728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 2676 SdHoareTripleChecker+Invalid, 6729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 728 IncrementalHoareTripleChecker+Valid, 6001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-07-13 23:47:23,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 2676 Invalid, 6729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [728 Valid, 6001 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2022-07-13 23:47:23,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4187 states. [2022-07-13 23:47:23,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4187 to 3063. [2022-07-13 23:47:23,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3063 states, 2228 states have (on average 1.2935368043087971) internal successors, (2882), 2242 states have internal predecessors, (2882), 624 states have call successors, (624), 194 states have call predecessors, (624), 210 states have return successors, (675), 640 states have call predecessors, (675), 623 states have call successors, (675) [2022-07-13 23:47:23,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3063 states to 3063 states and 4181 transitions. [2022-07-13 23:47:23,275 INFO L78 Accepts]: Start accepts. Automaton has 3063 states and 4181 transitions. Word has length 264 [2022-07-13 23:47:23,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:47:23,275 INFO L495 AbstractCegarLoop]: Abstraction has 3063 states and 4181 transitions. [2022-07-13 23:47:23,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 12.529411764705882) internal successors, (213), 11 states have internal predecessors, (213), 6 states have call successors, (59), 7 states have call predecessors, (59), 4 states have return successors, (54), 7 states have call predecessors, (54), 6 states have call successors, (54) [2022-07-13 23:47:23,276 INFO L276 IsEmpty]: Start isEmpty. Operand 3063 states and 4181 transitions. [2022-07-13 23:47:23,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-07-13 23:47:23,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:47:23,282 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:47:23,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-13 23:47:23,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:23,496 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:47:23,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:47:23,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1053836754, now seen corresponding path program 1 times [2022-07-13 23:47:23,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:47:23,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26463386] [2022-07-13 23:47:23,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:23,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:47:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:47:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 23:47:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 23:47:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 23:47:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 23:47:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 23:47:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-13 23:47:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-13 23:47:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-13 23:47:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 23:47:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:23,873 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-07-13 23:47:23,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:47:23,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26463386] [2022-07-13 23:47:23,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26463386] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:47:23,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479093921] [2022-07-13 23:47:23,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:23,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:23,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:47:23,901 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) [2022-07-13 23:47:23,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-13 23:47:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:24,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 2848 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:47:24,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:47:24,725 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-07-13 23:47:24,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:47:24,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479093921] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:47:24,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:47:24,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2022-07-13 23:47:24,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801835543] [2022-07-13 23:47:24,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:47:24,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:47:24,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:47:24,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:47:24,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-07-13 23:47:24,727 INFO L87 Difference]: Start difference. First operand 3063 states and 4181 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-13 23:47:24,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:47:24,821 INFO L93 Difference]: Finished difference Result 6129 states and 8365 transitions. [2022-07-13 23:47:24,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 23:47:24,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 303 [2022-07-13 23:47:24,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:47:24,833 INFO L225 Difference]: With dead ends: 6129 [2022-07-13 23:47:24,833 INFO L226 Difference]: Without dead ends: 2991 [2022-07-13 23:47:24,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-07-13 23:47:24,840 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 1 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:47:24,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1990 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:47:24,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2022-07-13 23:47:24,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2973. [2022-07-13 23:47:24,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2973 states, 2159 states have (on average 1.2945808244557666) internal successors, (2795), 2176 states have internal predecessors, (2795), 603 states have call successors, (603), 194 states have call predecessors, (603), 210 states have return successors, (651), 616 states have call predecessors, (651), 602 states have call successors, (651) [2022-07-13 23:47:24,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2973 states to 2973 states and 4049 transitions. [2022-07-13 23:47:24,949 INFO L78 Accepts]: Start accepts. Automaton has 2973 states and 4049 transitions. Word has length 303 [2022-07-13 23:47:24,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:47:24,949 INFO L495 AbstractCegarLoop]: Abstraction has 2973 states and 4049 transitions. [2022-07-13 23:47:24,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-13 23:47:24,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2973 states and 4049 transitions. [2022-07-13 23:47:24,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-07-13 23:47:24,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:47:24,956 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:47:24,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-13 23:47:25,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:25,168 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:47:25,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:47:25,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1100862756, now seen corresponding path program 1 times [2022-07-13 23:47:25,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:47:25,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854900510] [2022-07-13 23:47:25,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:25,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:47:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:47:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 23:47:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 23:47:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-13 23:47:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 23:47:25,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-13 23:47:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 23:47:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:25,558 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-07-13 23:47:25,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:47:25,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854900510] [2022-07-13 23:47:25,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854900510] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:47:25,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696881839] [2022-07-13 23:47:25,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:25,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:25,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:47:25,560 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) [2022-07-13 23:47:25,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-13 23:47:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:26,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 2901 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:47:26,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:47:26,414 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-07-13 23:47:26,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:47:26,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696881839] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:47:26,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:47:26,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 11 [2022-07-13 23:47:26,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823367949] [2022-07-13 23:47:26,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:47:26,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:47:26,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:47:26,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:47:26,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-13 23:47:26,416 INFO L87 Difference]: Start difference. First operand 2973 states and 4049 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-13 23:47:26,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:47:26,584 INFO L93 Difference]: Finished difference Result 8556 states and 11586 transitions. [2022-07-13 23:47:26,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:47:26,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 301 [2022-07-13 23:47:26,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:47:26,605 INFO L225 Difference]: With dead ends: 8556 [2022-07-13 23:47:26,605 INFO L226 Difference]: Without dead ends: 5577 [2022-07-13 23:47:26,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-13 23:47:26,614 INFO L413 NwaCegarLoop]: 1136 mSDtfsCounter, 616 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:47:26,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 1772 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:47:26,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5577 states. [2022-07-13 23:47:26,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5577 to 4814. [2022-07-13 23:47:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4814 states, 3488 states have (on average 1.2875573394495412) internal successors, (4491), 3512 states have internal predecessors, (4491), 975 states have call successors, (975), 327 states have call predecessors, (975), 350 states have return successors, (1022), 998 states have call predecessors, (1022), 974 states have call successors, (1022) [2022-07-13 23:47:26,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4814 states to 4814 states and 6488 transitions. [2022-07-13 23:47:26,869 INFO L78 Accepts]: Start accepts. Automaton has 4814 states and 6488 transitions. Word has length 301 [2022-07-13 23:47:26,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:47:26,870 INFO L495 AbstractCegarLoop]: Abstraction has 4814 states and 6488 transitions. [2022-07-13 23:47:26,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-07-13 23:47:26,870 INFO L276 IsEmpty]: Start isEmpty. Operand 4814 states and 6488 transitions. [2022-07-13 23:47:26,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-07-13 23:47:26,877 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:47:26,878 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:47:26,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-13 23:47:27,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:27,092 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:47:27,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:47:27,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1451902732, now seen corresponding path program 1 times [2022-07-13 23:47:27,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:47:27,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963709791] [2022-07-13 23:47:27,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:27,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:47:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 23:47:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 23:47:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 23:47:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-13 23:47:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-13 23:47:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-13 23:47:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:27,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 23:47:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:27,559 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 9 proven. 22 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-07-13 23:47:27,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:47:27,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963709791] [2022-07-13 23:47:27,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963709791] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:47:27,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348807912] [2022-07-13 23:47:27,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:27,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:27,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:47:27,562 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) [2022-07-13 23:47:27,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-13 23:47:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:28,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 3050 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 23:47:28,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:47:28,548 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-07-13 23:47:28,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:47:28,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348807912] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:47:28,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:47:28,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2022-07-13 23:47:28,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537470141] [2022-07-13 23:47:28,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:47:28,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:47:28,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:47:28,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:47:28,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-07-13 23:47:28,550 INFO L87 Difference]: Start difference. First operand 4814 states and 6488 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-13 23:47:28,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:47:28,746 INFO L93 Difference]: Finished difference Result 10532 states and 14317 transitions. [2022-07-13 23:47:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 23:47:28,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 305 [2022-07-13 23:47:28,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:47:28,765 INFO L225 Difference]: With dead ends: 10532 [2022-07-13 23:47:28,765 INFO L226 Difference]: Without dead ends: 5721 [2022-07-13 23:47:28,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-07-13 23:47:28,777 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 142 mSDsluCounter, 2286 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:47:28,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 3102 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:47:28,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5721 states. [2022-07-13 23:47:28,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5721 to 4856. [2022-07-13 23:47:28,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4856 states, 3527 states have (on average 1.2843776580663453) internal successors, (4530), 3536 states have internal predecessors, (4530), 975 states have call successors, (975), 327 states have call predecessors, (975), 353 states have return successors, (1043), 1016 states have call predecessors, (1043), 974 states have call successors, (1043) [2022-07-13 23:47:28,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4856 states to 4856 states and 6548 transitions. [2022-07-13 23:47:28,985 INFO L78 Accepts]: Start accepts. Automaton has 4856 states and 6548 transitions. Word has length 305 [2022-07-13 23:47:28,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:47:28,985 INFO L495 AbstractCegarLoop]: Abstraction has 4856 states and 6548 transitions. [2022-07-13 23:47:28,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-13 23:47:28,985 INFO L276 IsEmpty]: Start isEmpty. Operand 4856 states and 6548 transitions. [2022-07-13 23:47:28,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2022-07-13 23:47:28,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:47:28,992 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:47:29,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-13 23:47:29,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:29,208 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:47:29,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:47:29,209 INFO L85 PathProgramCache]: Analyzing trace with hash 442468550, now seen corresponding path program 1 times [2022-07-13 23:47:29,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:47:29,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153624192] [2022-07-13 23:47:29,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:29,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:47:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:47:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 23:47:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:47:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:47:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:47:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-13 23:47:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 23:47:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-13 23:47:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-07-13 23:47:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-13 23:47:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-07-13 23:47:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 23:47:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:29,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:30,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:30,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:30,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:30,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:30,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:30,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:30,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:30,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:30,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:30,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:30,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:30,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:30,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:30,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1115 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2022-07-13 23:47:30,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:47:30,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153624192] [2022-07-13 23:47:30,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153624192] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:47:30,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275403422] [2022-07-13 23:47:30,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:30,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:30,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:47:30,060 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) [2022-07-13 23:47:30,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-13 23:47:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:31,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 4414 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 23:47:31,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:47:31,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1115 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1069 trivial. 0 not checked. [2022-07-13 23:47:31,219 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:47:31,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275403422] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:47:31,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:47:31,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2022-07-13 23:47:31,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539687740] [2022-07-13 23:47:31,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:47:31,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:47:31,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:47:31,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:47:31,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-07-13 23:47:31,221 INFO L87 Difference]: Start difference. First operand 4856 states and 6548 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-13 23:47:31,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:47:31,392 INFO L93 Difference]: Finished difference Result 9775 states and 13258 transitions. [2022-07-13 23:47:31,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:47:31,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 496 [2022-07-13 23:47:31,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:47:31,410 INFO L225 Difference]: With dead ends: 9775 [2022-07-13 23:47:31,410 INFO L226 Difference]: Without dead ends: 4922 [2022-07-13 23:47:31,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 640 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-07-13 23:47:31,421 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 10 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:47:31,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1289 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:47:31,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4922 states. [2022-07-13 23:47:31,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4922 to 4868. [2022-07-13 23:47:31,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4868 states, 3539 states have (on average 1.2834133936140153) internal successors, (4542), 3548 states have internal predecessors, (4542), 975 states have call successors, (975), 327 states have call predecessors, (975), 353 states have return successors, (1043), 1016 states have call predecessors, (1043), 974 states have call successors, (1043) [2022-07-13 23:47:31,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4868 states to 4868 states and 6560 transitions. [2022-07-13 23:47:31,676 INFO L78 Accepts]: Start accepts. Automaton has 4868 states and 6560 transitions. Word has length 496 [2022-07-13 23:47:31,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:47:31,676 INFO L495 AbstractCegarLoop]: Abstraction has 4868 states and 6560 transitions. [2022-07-13 23:47:31,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-13 23:47:31,676 INFO L276 IsEmpty]: Start isEmpty. Operand 4868 states and 6560 transitions. [2022-07-13 23:47:31,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2022-07-13 23:47:31,682 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:47:31,682 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 13, 13, 13, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:47:31,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-13 23:47:31,895 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,SelfDestructingSolverStorable23 [2022-07-13 23:47:31,896 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:47:31,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:47:31,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1020209356, now seen corresponding path program 1 times [2022-07-13 23:47:31,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:47:31,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880183329] [2022-07-13 23:47:31,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:31,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:47:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:47:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 23:47:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 23:47:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:47:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 23:47:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-13 23:47:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 23:47:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 23:47:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-13 23:47:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-07-13 23:47:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-13 23:47:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-13 23:47:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 23:47:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:32,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 1144 trivial. 0 not checked. [2022-07-13 23:47:32,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:47:32,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880183329] [2022-07-13 23:47:32,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880183329] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:47:32,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605611993] [2022-07-13 23:47:32,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:32,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:32,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:47:32,616 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) [2022-07-13 23:47:32,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-13 23:47:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:34,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 4494 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:47:34,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:47:34,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1178 trivial. 0 not checked. [2022-07-13 23:47:34,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:47:34,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605611993] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:47:34,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:47:34,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2022-07-13 23:47:34,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296329550] [2022-07-13 23:47:34,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:47:34,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:47:34,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:47:34,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:47:34,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-07-13 23:47:34,040 INFO L87 Difference]: Start difference. First operand 4868 states and 6560 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-13 23:47:34,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:47:34,221 INFO L93 Difference]: Finished difference Result 9907 states and 13438 transitions. [2022-07-13 23:47:34,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 23:47:34,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 511 [2022-07-13 23:47:34,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:47:34,238 INFO L225 Difference]: With dead ends: 9907 [2022-07-13 23:47:34,238 INFO L226 Difference]: Without dead ends: 5042 [2022-07-13 23:47:34,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 658 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-07-13 23:47:34,250 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 27 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:47:34,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1957 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:47:34,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5042 states. [2022-07-13 23:47:34,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5042 to 4880. [2022-07-13 23:47:34,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4880 states, 3551 states have (on average 1.2824556462968177) internal successors, (4554), 3554 states have internal predecessors, (4554), 975 states have call successors, (975), 327 states have call predecessors, (975), 353 states have return successors, (1043), 1016 states have call predecessors, (1043), 974 states have call successors, (1043) [2022-07-13 23:47:34,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4880 states to 4880 states and 6572 transitions. [2022-07-13 23:47:34,435 INFO L78 Accepts]: Start accepts. Automaton has 4880 states and 6572 transitions. Word has length 511 [2022-07-13 23:47:34,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:47:34,435 INFO L495 AbstractCegarLoop]: Abstraction has 4880 states and 6572 transitions. [2022-07-13 23:47:34,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-13 23:47:34,435 INFO L276 IsEmpty]: Start isEmpty. Operand 4880 states and 6572 transitions. [2022-07-13 23:47:34,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2022-07-13 23:47:34,442 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:47:34,442 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 13, 13, 13, 13, 13, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:47:34,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-13 23:47:34,667 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,SelfDestructingSolverStorable24 [2022-07-13 23:47:34,668 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:47:34,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:47:34,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1489594991, now seen corresponding path program 1 times [2022-07-13 23:47:34,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:47:34,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179522534] [2022-07-13 23:47:34,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:34,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:47:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:34,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:47:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:34,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 23:47:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:34,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 23:47:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:34,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:34,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:34,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:34,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:47:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:34,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 23:47:34,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:34,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:34,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:47:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:34,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:34,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 23:47:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:34,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 23:47:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 23:47:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:35,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-13 23:47:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-13 23:47:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-07-13 23:47:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-07-13 23:47:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 23:47:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 23:47:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 23:47:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 23:47:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:47:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:35,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1295 backedges. 2 proven. 79 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2022-07-13 23:47:35,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:47:35,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179522534] [2022-07-13 23:47:35,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179522534] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:47:35,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311373240] [2022-07-13 23:47:35,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:35,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:35,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:47:35,468 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) [2022-07-13 23:47:35,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-13 23:47:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:36,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 4548 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:47:36,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:47:36,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1295 backedges. 222 proven. 1 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2022-07-13 23:47:36,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 23:47:37,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1295 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2022-07-13 23:47:37,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311373240] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 23:47:37,583 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 23:47:37,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2022-07-13 23:47:37,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210285671] [2022-07-13 23:47:37,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 23:47:37,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-13 23:47:37,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:47:37,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-13 23:47:37,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-07-13 23:47:37,585 INFO L87 Difference]: Start difference. First operand 4880 states and 6572 transitions. Second operand has 16 states, 16 states have (on average 14.6875) internal successors, (235), 9 states have internal predecessors, (235), 6 states have call successors, (75), 9 states have call predecessors, (75), 2 states have return successors, (65), 6 states have call predecessors, (65), 6 states have call successors, (65) [2022-07-13 23:47:48,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:47:48,115 INFO L93 Difference]: Finished difference Result 12653 states and 18614 transitions. [2022-07-13 23:47:48,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-13 23:47:48,115 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.6875) internal successors, (235), 9 states have internal predecessors, (235), 6 states have call successors, (75), 9 states have call predecessors, (75), 2 states have return successors, (65), 6 states have call predecessors, (65), 6 states have call successors, (65) Word has length 522 [2022-07-13 23:47:48,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:47:48,141 INFO L225 Difference]: With dead ends: 12653 [2022-07-13 23:47:48,141 INFO L226 Difference]: Without dead ends: 7776 [2022-07-13 23:47:48,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1227 GetRequests, 1201 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=594, Unknown=0, NotChecked=0, Total=756 [2022-07-13 23:47:48,155 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 1234 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 4034 mSolverCounterSat, 898 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 2030 SdHoareTripleChecker+Invalid, 4932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 898 IncrementalHoareTripleChecker+Valid, 4034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:47:48,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 2030 Invalid, 4932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [898 Valid, 4034 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2022-07-13 23:47:48,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7776 states. [2022-07-13 23:47:48,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7776 to 5102. [2022-07-13 23:47:48,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5102 states, 3737 states have (on average 1.2828472036392828) internal successors, (4794), 3740 states have internal predecessors, (4794), 1011 states have call successors, (1011), 327 states have call predecessors, (1011), 353 states have return successors, (1079), 1052 states have call predecessors, (1079), 1010 states have call successors, (1079) [2022-07-13 23:47:48,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5102 states to 5102 states and 6884 transitions. [2022-07-13 23:47:48,398 INFO L78 Accepts]: Start accepts. Automaton has 5102 states and 6884 transitions. Word has length 522 [2022-07-13 23:47:48,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:47:48,398 INFO L495 AbstractCegarLoop]: Abstraction has 5102 states and 6884 transitions. [2022-07-13 23:47:48,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.6875) internal successors, (235), 9 states have internal predecessors, (235), 6 states have call successors, (75), 9 states have call predecessors, (75), 2 states have return successors, (65), 6 states have call predecessors, (65), 6 states have call successors, (65) [2022-07-13 23:47:48,398 INFO L276 IsEmpty]: Start isEmpty. Operand 5102 states and 6884 transitions. [2022-07-13 23:47:48,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2022-07-13 23:47:48,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:47:48,407 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:47:48,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-13 23:47:48,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-13 23:47:48,620 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:47:48,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:47:48,620 INFO L85 PathProgramCache]: Analyzing trace with hash 235644442, now seen corresponding path program 1 times [2022-07-13 23:47:48,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:47:48,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347439340] [2022-07-13 23:47:48,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:48,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:47:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:47:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 23:47:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 23:47:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:47:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 23:47:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:47:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 23:47:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:47:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 23:47:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 23:47:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:48,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-13 23:47:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:47:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:47:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:47:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 23:47:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 23:47:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 23:47:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-13 23:47:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 23:47:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:47:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:47:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:47:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 23:47:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 23:47:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 23:47:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-13 23:47:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-07-13 23:47:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-07-13 23:47:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-07-13 23:47:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-13 23:47:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:47:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:47:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:47:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 23:47:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 23:47:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 23:47:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-13 23:47:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 23:47:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:47:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:47:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:47:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:47:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:47:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 23:47:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 23:47:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:47:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 23:47:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-13 23:47:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:49,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2247 backedges. 2 proven. 108 refuted. 0 times theorem prover too weak. 2137 trivial. 0 not checked. [2022-07-13 23:47:49,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:47:49,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347439340] [2022-07-13 23:47:49,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347439340] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:47:49,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698080644] [2022-07-13 23:47:49,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:47:49,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:47:49,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:47:49,588 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) [2022-07-13 23:47:49,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-13 23:47:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:47:51,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 4992 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 23:47:51,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:47:51,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2247 backedges. 626 proven. 34 refuted. 0 times theorem prover too weak. 1587 trivial. 0 not checked. [2022-07-13 23:47:51,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 23:47:51,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2247 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 2211 trivial. 0 not checked. [2022-07-13 23:47:51,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698080644] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 23:47:51,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 23:47:51,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 18 [2022-07-13 23:47:51,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900668868] [2022-07-13 23:47:51,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 23:47:51,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-13 23:47:51,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:47:51,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-13 23:47:51,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-07-13 23:47:51,934 INFO L87 Difference]: Start difference. First operand 5102 states and 6884 transitions. Second operand has 18 states, 18 states have (on average 14.444444444444445) internal successors, (260), 11 states have internal predecessors, (260), 8 states have call successors, (81), 9 states have call predecessors, (81), 3 states have return successors, (73), 8 states have call predecessors, (73), 8 states have call successors, (73) [2022-07-13 23:48:10,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:48:10,860 INFO L93 Difference]: Finished difference Result 12353 states and 17642 transitions. [2022-07-13 23:48:10,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-13 23:48:10,861 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 14.444444444444445) internal successors, (260), 11 states have internal predecessors, (260), 8 states have call successors, (81), 9 states have call predecessors, (81), 3 states have return successors, (73), 8 states have call predecessors, (73), 8 states have call successors, (73) Word has length 621 [2022-07-13 23:48:10,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:48:10,910 INFO L225 Difference]: With dead ends: 12353 [2022-07-13 23:48:10,910 INFO L226 Difference]: Without dead ends: 7122 [2022-07-13 23:48:10,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1470 GetRequests, 1438 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 23:48:10,931 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 969 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 6877 mSolverCounterSat, 603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 3005 SdHoareTripleChecker+Invalid, 7480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 603 IncrementalHoareTripleChecker+Valid, 6877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-07-13 23:48:10,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 3005 Invalid, 7480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [603 Valid, 6877 Invalid, 0 Unknown, 0 Unchecked, 18.3s Time] [2022-07-13 23:48:10,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7122 states. [2022-07-13 23:48:11,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7122 to 5168. [2022-07-13 23:48:11,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5168 states, 3791 states have (on average 1.27723555790029) internal successors, (4842), 3794 states have internal predecessors, (4842), 1023 states have call successors, (1023), 327 states have call predecessors, (1023), 353 states have return successors, (1091), 1064 states have call predecessors, (1091), 1022 states have call successors, (1091) [2022-07-13 23:48:11,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 6956 transitions. [2022-07-13 23:48:11,255 INFO L78 Accepts]: Start accepts. Automaton has 5168 states and 6956 transitions. Word has length 621 [2022-07-13 23:48:11,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:48:11,255 INFO L495 AbstractCegarLoop]: Abstraction has 5168 states and 6956 transitions. [2022-07-13 23:48:11,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.444444444444445) internal successors, (260), 11 states have internal predecessors, (260), 8 states have call successors, (81), 9 states have call predecessors, (81), 3 states have return successors, (73), 8 states have call predecessors, (73), 8 states have call successors, (73) [2022-07-13 23:48:11,256 INFO L276 IsEmpty]: Start isEmpty. Operand 5168 states and 6956 transitions. [2022-07-13 23:48:11,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2022-07-13 23:48:11,265 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:48:11,265 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 13, 13, 13, 13, 13, 12, 12, 12, 9, 9, 9, 9, 9, 8, 8, 8, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:48:11,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-07-13 23:48:11,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:48:11,480 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:48:11,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:48:11,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1190478930, now seen corresponding path program 1 times [2022-07-13 23:48:11,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:48:11,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637416186] [2022-07-13 23:48:11,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:48:11,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:48:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 23:48:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:48:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:48:11,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 23:48:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:48:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 23:48:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:48:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 23:48:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:48:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 23:48:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-13 23:48:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:11,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:11,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 23:48:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:48:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:48:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:48:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:48:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 23:48:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:48:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:48:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:48:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:48:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 23:48:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 23:48:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-13 23:48:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 23:48:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-13 23:48:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-07-13 23:48:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-07-13 23:48:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-07-13 23:48:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 23:48:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:48:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:48:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:48:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:48:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 23:48:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:48:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:48:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:48:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:48:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 23:48:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 23:48:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-13 23:48:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 23:48:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:12,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1974 trivial. 0 not checked. [2022-07-13 23:48:12,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:48:12,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637416186] [2022-07-13 23:48:12,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637416186] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:48:12,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812414616] [2022-07-13 23:48:12,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:48:12,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:48:12,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:48:12,378 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 23:48:12,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-13 23:48:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:14,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 5214 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 23:48:14,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:48:14,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 637 proven. 0 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2022-07-13 23:48:14,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:48:14,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812414616] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:48:14,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:48:14,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-07-13 23:48:14,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082086451] [2022-07-13 23:48:14,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:48:14,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 23:48:14,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:48:14,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 23:48:14,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-07-13 23:48:14,142 INFO L87 Difference]: Start difference. First operand 5168 states and 6956 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 3 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2022-07-13 23:48:14,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:48:14,369 INFO L93 Difference]: Finished difference Result 10699 states and 14515 transitions. [2022-07-13 23:48:14,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 23:48:14,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 3 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 630 [2022-07-13 23:48:14,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:48:14,385 INFO L225 Difference]: With dead ends: 10699 [2022-07-13 23:48:14,386 INFO L226 Difference]: Without dead ends: 5528 [2022-07-13 23:48:14,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 818 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-07-13 23:48:14,397 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 15 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 3272 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:48:14,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 3272 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:48:14,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5528 states. [2022-07-13 23:48:14,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5528 to 5498. [2022-07-13 23:48:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5498 states, 4055 states have (on average 1.2769420468557338) internal successors, (5178), 4061 states have internal predecessors, (5178), 1083 states have call successors, (1083), 327 states have call predecessors, (1083), 359 states have return successors, (1160), 1127 states have call predecessors, (1160), 1082 states have call successors, (1160) [2022-07-13 23:48:14,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5498 states to 5498 states and 7421 transitions. [2022-07-13 23:48:14,616 INFO L78 Accepts]: Start accepts. Automaton has 5498 states and 7421 transitions. Word has length 630 [2022-07-13 23:48:14,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:48:14,617 INFO L495 AbstractCegarLoop]: Abstraction has 5498 states and 7421 transitions. [2022-07-13 23:48:14,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 3 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2022-07-13 23:48:14,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5498 states and 7421 transitions. [2022-07-13 23:48:14,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2022-07-13 23:48:14,625 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:48:14,625 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 13, 13, 13, 13, 13, 12, 12, 12, 9, 9, 9, 9, 9, 8, 8, 8, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:48:14,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-07-13 23:48:14,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-13 23:48:14,839 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:48:14,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:48:14,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1866619799, now seen corresponding path program 1 times [2022-07-13 23:48:14,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:48:14,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894096869] [2022-07-13 23:48:14,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:48:14,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:48:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 23:48:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:48:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:48:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 23:48:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:48:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 23:48:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:48:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 23:48:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:48:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-13 23:48:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-13 23:48:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 23:48:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:48:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:48:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:48:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:48:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 23:48:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:48:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:48:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:48:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:48:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 23:48:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 23:48:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-13 23:48:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 23:48:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-13 23:48:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2022-07-13 23:48:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2022-07-13 23:48:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-07-13 23:48:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 23:48:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:48:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:48:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:48:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:48:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 23:48:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:48:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:48:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:48:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:48:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 23:48:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 23:48:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-13 23:48:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 23:48:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1954 trivial. 0 not checked. [2022-07-13 23:48:15,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:48:15,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894096869] [2022-07-13 23:48:15,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894096869] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:48:15,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:48:15,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 23:48:15,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128907321] [2022-07-13 23:48:15,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:48:15,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 23:48:15,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:48:15,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 23:48:15,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-13 23:48:15,818 INFO L87 Difference]: Start difference. First operand 5498 states and 7421 transitions. Second operand has 10 states, 10 states have (on average 17.1) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (41), 9 states have call predecessors, (41), 2 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-13 23:48:24,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:48:24,058 INFO L93 Difference]: Finished difference Result 12899 states and 18158 transitions. [2022-07-13 23:48:24,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 23:48:24,059 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (41), 9 states have call predecessors, (41), 2 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 633 [2022-07-13 23:48:24,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:48:24,086 INFO L225 Difference]: With dead ends: 12899 [2022-07-13 23:48:24,087 INFO L226 Difference]: Without dead ends: 7404 [2022-07-13 23:48:24,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-07-13 23:48:24,100 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 1076 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 2330 mSolverCounterSat, 816 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 3146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 816 IncrementalHoareTripleChecker+Valid, 2330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-07-13 23:48:24,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 1589 Invalid, 3146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [816 Valid, 2330 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-07-13 23:48:24,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7404 states. [2022-07-13 23:48:24,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7404 to 5450. [2022-07-13 23:48:24,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 4007 states have (on average 1.2667831295233343) internal successors, (5076), 4013 states have internal predecessors, (5076), 1083 states have call successors, (1083), 327 states have call predecessors, (1083), 359 states have return successors, (1160), 1127 states have call predecessors, (1160), 1082 states have call successors, (1160) [2022-07-13 23:48:24,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 7319 transitions. [2022-07-13 23:48:24,361 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 7319 transitions. Word has length 633 [2022-07-13 23:48:24,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:48:24,361 INFO L495 AbstractCegarLoop]: Abstraction has 5450 states and 7319 transitions. [2022-07-13 23:48:24,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (41), 9 states have call predecessors, (41), 2 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-13 23:48:24,362 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 7319 transitions. [2022-07-13 23:48:24,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2022-07-13 23:48:24,369 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:48:24,370 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 13, 13, 13, 13, 13, 12, 12, 12, 9, 9, 9, 9, 9, 8, 8, 8, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:48:24,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-13 23:48:24,370 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:48:24,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:48:24,370 INFO L85 PathProgramCache]: Analyzing trace with hash -2022416364, now seen corresponding path program 1 times [2022-07-13 23:48:24,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:48:24,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226804208] [2022-07-13 23:48:24,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:48:24,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:48:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 23:48:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:48:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:48:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 23:48:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:48:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 23:48:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 23:48:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 23:48:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 23:48:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-13 23:48:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-13 23:48:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 23:48:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:48:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:48:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:48:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:48:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 23:48:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:48:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:48:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:48:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:48:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 23:48:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 23:48:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-13 23:48:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 23:48:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:24,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-07-13 23:48:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2022-07-13 23:48:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-07-13 23:48:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-07-13 23:48:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 23:48:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:48:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:48:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:48:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:48:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 23:48:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:48:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:48:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:48:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 23:48:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 23:48:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 23:48:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-13 23:48:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 23:48:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:25,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2022-07-13 23:48:25,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:48:25,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226804208] [2022-07-13 23:48:25,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226804208] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:48:25,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647089840] [2022-07-13 23:48:25,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:48:25,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:48:25,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:48:25,412 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 23:48:25,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-13 23:48:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:27,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 5234 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:48:27,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:48:27,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 972 proven. 3 refuted. 0 times theorem prover too weak. 1019 trivial. 0 not checked. [2022-07-13 23:48:27,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 23:48:28,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 24 proven. 75 refuted. 0 times theorem prover too weak. 1895 trivial. 0 not checked. [2022-07-13 23:48:28,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647089840] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 23:48:28,184 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 23:48:28,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 4, 4] total 16 [2022-07-13 23:48:28,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147222478] [2022-07-13 23:48:28,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 23:48:28,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-13 23:48:28,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:48:28,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-13 23:48:28,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-07-13 23:48:28,186 INFO L87 Difference]: Start difference. First operand 5450 states and 7319 transitions. Second operand has 16 states, 16 states have (on average 17.0625) internal successors, (273), 8 states have internal predecessors, (273), 7 states have call successors, (94), 9 states have call predecessors, (94), 3 states have return successors, (86), 8 states have call predecessors, (86), 7 states have call successors, (86) [2022-07-13 23:48:41,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:48:41,031 INFO L93 Difference]: Finished difference Result 14219 states and 20840 transitions. [2022-07-13 23:48:41,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-13 23:48:41,031 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 17.0625) internal successors, (273), 8 states have internal predecessors, (273), 7 states have call successors, (94), 9 states have call predecessors, (94), 3 states have return successors, (86), 8 states have call predecessors, (86), 7 states have call successors, (86) Word has length 635 [2022-07-13 23:48:41,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:48:41,064 INFO L225 Difference]: With dead ends: 14219 [2022-07-13 23:48:41,064 INFO L226 Difference]: Without dead ends: 8520 [2022-07-13 23:48:41,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1498 GetRequests, 1468 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=237, Invalid=755, Unknown=0, NotChecked=0, Total=992 [2022-07-13 23:48:41,081 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 1157 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 4498 mSolverCounterSat, 944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 2244 SdHoareTripleChecker+Invalid, 5442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 944 IncrementalHoareTripleChecker+Valid, 4498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-07-13 23:48:41,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 2244 Invalid, 5442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [944 Valid, 4498 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2022-07-13 23:48:41,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8520 states. [2022-07-13 23:48:41,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8520 to 5846. [2022-07-13 23:48:41,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5846 states, 4235 states have (on average 1.2807556080283353) internal successors, (5424), 4241 states have internal predecessors, (5424), 1239 states have call successors, (1239), 327 states have call predecessors, (1239), 371 states have return successors, (1340), 1295 states have call predecessors, (1340), 1238 states have call successors, (1340) [2022-07-13 23:48:41,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 8003 transitions. [2022-07-13 23:48:41,399 INFO L78 Accepts]: Start accepts. Automaton has 5846 states and 8003 transitions. Word has length 635 [2022-07-13 23:48:41,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:48:41,399 INFO L495 AbstractCegarLoop]: Abstraction has 5846 states and 8003 transitions. [2022-07-13 23:48:41,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 17.0625) internal successors, (273), 8 states have internal predecessors, (273), 7 states have call successors, (94), 9 states have call predecessors, (94), 3 states have return successors, (86), 8 states have call predecessors, (86), 7 states have call successors, (86) [2022-07-13 23:48:41,400 INFO L276 IsEmpty]: Start isEmpty. Operand 5846 states and 8003 transitions. [2022-07-13 23:48:41,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2022-07-13 23:48:41,408 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:48:41,409 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 13, 13, 13, 13, 13, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:48:41,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-07-13 23:48:41,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:48:41,624 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:48:41,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:48:41,625 INFO L85 PathProgramCache]: Analyzing trace with hash -65291215, now seen corresponding path program 1 times [2022-07-13 23:48:41,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:48:41,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795551176] [2022-07-13 23:48:41,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:48:41,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:48:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:41,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:41,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 23:48:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 23:48:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:48:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 23:48:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:48:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 23:48:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 23:48:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 23:48:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:48:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 23:48:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-13 23:48:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 23:48:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:48:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:48:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:48:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:48:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 23:48:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:48:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 23:48:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:48:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:48:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:48:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 23:48:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 23:48:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-13 23:48:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 23:48:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-07-13 23:48:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-07-13 23:48:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2022-07-13 23:48:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-07-13 23:48:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 23:48:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:48:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:48:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:48:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:48:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 23:48:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:48:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 23:48:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:48:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:48:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:48:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 23:48:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 23:48:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-13 23:48:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 23:48:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:42,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2399 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2395 trivial. 0 not checked. [2022-07-13 23:48:42,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:48:42,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795551176] [2022-07-13 23:48:42,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795551176] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:48:42,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142626436] [2022-07-13 23:48:42,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:48:42,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:48:42,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:48:42,723 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 23:48:42,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-07-13 23:48:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:44,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 5540 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 23:48:44,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:48:44,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2399 backedges. 691 proven. 0 refuted. 0 times theorem prover too weak. 1708 trivial. 0 not checked. [2022-07-13 23:48:44,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:48:44,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142626436] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:48:44,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:48:44,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-07-13 23:48:44,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297183596] [2022-07-13 23:48:44,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:48:44,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 23:48:44,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:48:44,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 23:48:44,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-07-13 23:48:44,745 INFO L87 Difference]: Start difference. First operand 5846 states and 8003 transitions. Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 5 states have internal predecessors, (173), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-13 23:48:45,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:48:45,030 INFO L93 Difference]: Finished difference Result 11746 states and 16144 transitions. [2022-07-13 23:48:45,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 23:48:45,030 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 5 states have internal predecessors, (173), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) Word has length 658 [2022-07-13 23:48:45,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:48:45,050 INFO L225 Difference]: With dead ends: 11746 [2022-07-13 23:48:45,051 INFO L226 Difference]: Without dead ends: 5903 [2022-07-13 23:48:45,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 850 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-07-13 23:48:45,064 INFO L413 NwaCegarLoop]: 664 mSDtfsCounter, 16 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 3292 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:48:45,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 3292 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:48:45,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5903 states. [2022-07-13 23:48:45,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5903 to 5858. [2022-07-13 23:48:45,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 4247 states have (on average 1.2799623263480104) internal successors, (5436), 4247 states have internal predecessors, (5436), 1239 states have call successors, (1239), 327 states have call predecessors, (1239), 371 states have return successors, (1340), 1301 states have call predecessors, (1340), 1238 states have call successors, (1340) [2022-07-13 23:48:45,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 8015 transitions. [2022-07-13 23:48:45,432 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 8015 transitions. Word has length 658 [2022-07-13 23:48:45,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:48:45,433 INFO L495 AbstractCegarLoop]: Abstraction has 5858 states and 8015 transitions. [2022-07-13 23:48:45,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 5 states have internal predecessors, (173), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (39), 4 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-13 23:48:45,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 8015 transitions. [2022-07-13 23:48:45,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2022-07-13 23:48:45,444 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:48:45,445 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 18, 18, 18, 13, 13, 13, 13, 13, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:48:45,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-07-13 23:48:45,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-07-13 23:48:45,661 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:48:45,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:48:45,661 INFO L85 PathProgramCache]: Analyzing trace with hash -870372578, now seen corresponding path program 1 times [2022-07-13 23:48:45,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 23:48:45,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883992553] [2022-07-13 23:48:45,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:48:45,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 23:48:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:45,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:45,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 23:48:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 23:48:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-13 23:48:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 23:48:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 23:48:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 23:48:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 23:48:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 23:48:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 23:48:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-13 23:48:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-13 23:48:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 23:48:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:48:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:48:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:48:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:48:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 23:48:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:48:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 23:48:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:48:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:48:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:48:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 23:48:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 23:48:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-13 23:48:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 23:48:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-07-13 23:48:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-07-13 23:48:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-07-13 23:48:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-07-13 23:48:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 23:48:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:48:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:48:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 23:48:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 23:48:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 23:48:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 23:48:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 23:48:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 23:48:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 23:48:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 23:48:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 23:48:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 23:48:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 23:48:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 23:48:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 23:48:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 23:48:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-13 23:48:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 23:48:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:46,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2409 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2405 trivial. 0 not checked. [2022-07-13 23:48:46,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 23:48:46,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883992553] [2022-07-13 23:48:46,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883992553] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 23:48:46,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364504906] [2022-07-13 23:48:46,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:48:46,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:48:46,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:48:46,608 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 23:48:46,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-07-13 23:48:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:48:48,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 5544 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 23:48:48,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:48:49,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2409 backedges. 1201 proven. 0 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2022-07-13 23:48:49,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:48:49,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364504906] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:48:49,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 23:48:49,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2022-07-13 23:48:49,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770832951] [2022-07-13 23:48:49,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:48:49,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:48:49,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 23:48:49,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:48:49,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-07-13 23:48:49,117 INFO L87 Difference]: Start difference. First operand 5858 states and 8015 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 3 states have call successors, (61), 3 states have call predecessors, (61), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-07-13 23:48:49,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:48:49,339 INFO L93 Difference]: Finished difference Result 5858 states and 8015 transitions. [2022-07-13 23:48:49,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:48:49,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 3 states have call successors, (61), 3 states have call predecessors, (61), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 661 [2022-07-13 23:48:49,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:48:49,342 INFO L225 Difference]: With dead ends: 5858 [2022-07-13 23:48:49,342 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 23:48:49,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 869 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-07-13 23:48:49,352 INFO L413 NwaCegarLoop]: 915 mSDtfsCounter, 206 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:48:49,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 1504 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 23:48:49,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 23:48:49,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 23:48:49,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-07-13 23:48:49,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 23:48:49,356 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 661 [2022-07-13 23:48:49,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:48:49,356 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 23:48:49,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 3 states have call successors, (61), 3 states have call predecessors, (61), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-07-13 23:48:49,356 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 23:48:49,356 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 23:48:49,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 23:48:49,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-07-13 23:48:49,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 23:48:49,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.