./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 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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-?-3598765 [2022-07-21 10:40:06,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 10:40:06,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 10:40:06,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 10:40:06,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 10:40:06,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 10:40:06,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 10:40:06,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 10:40:06,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 10:40:06,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 10:40:06,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 10:40:06,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 10:40:06,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 10:40:06,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 10:40:06,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 10:40:06,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 10:40:06,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 10:40:06,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 10:40:06,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 10:40:06,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 10:40:06,888 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 10:40:06,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 10:40:06,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 10:40:06,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 10:40:06,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 10:40:06,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 10:40:06,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 10:40:06,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 10:40:06,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 10:40:06,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 10:40:06,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 10:40:06,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 10:40:06,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 10:40:06,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 10:40:06,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 10:40:06,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 10:40:06,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 10:40:06,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 10:40:06,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 10:40:06,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 10:40:06,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 10:40:06,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 10:40:06,909 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 10:40:06,938 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 10:40:06,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 10:40:06,939 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 10:40:06,939 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 10:40:06,940 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 10:40:06,941 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 10:40:06,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 10:40:06,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 10:40:06,943 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 10:40:06,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 10:40:06,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 10:40:06,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 10:40:06,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 10:40:06,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 10:40:06,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 10:40:06,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 10:40:06,945 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 10:40:06,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 10:40:06,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 10:40:06,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 10:40:06,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 10:40:06,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:40:06,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 10:40:06,947 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 10:40:06,947 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 10:40:06,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 10:40:06,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 10:40:06,948 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 10:40:06,948 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 10:40:06,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 10:40:06,949 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65cc93bea37c503291576929a444106bffa9d5b7b84b8d294ee7e7120b60ffa5 [2022-07-21 10:40:07,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 10:40:07,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 10:40:07,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 10:40:07,318 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 10:40:07,319 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 10:40:07,321 INFO L432 ainManager$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 [2022-07-21 10:40:07,390 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51b8e2900/4ec1b2ea51d34cb3a9c6f57f88741b3d/FLAGb71e1fe06 [2022-07-21 10:40:08,134 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 10:40:08,135 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 [2022-07-21 10:40:08,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51b8e2900/4ec1b2ea51d34cb3a9c6f57f88741b3d/FLAGb71e1fe06 [2022-07-21 10:40:08,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51b8e2900/4ec1b2ea51d34cb3a9c6f57f88741b3d [2022-07-21 10:40:08,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 10:40:08,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 10:40:08,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 10:40:08,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 10:40:08,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 10:40:08,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:40:08" (1/1) ... [2022-07-21 10:40:08,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207852e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:08, skipping insertion in model container [2022-07-21 10:40:08,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:40:08" (1/1) ... [2022-07-21 10:40:08,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 10:40:08,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:40:09,369 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] [2022-07-21 10:40:09,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:40:09,529 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 10:40:09,797 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] [2022-07-21 10:40:09,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:40:09,908 INFO L208 MainTranslator]: Completed translation [2022-07-21 10:40:09,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:09 WrapperNode [2022-07-21 10:40:09,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 10:40:09,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 10:40:09,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 10:40:09,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 10:40:09,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:09" (1/1) ... [2022-07-21 10:40:09,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:09" (1/1) ... [2022-07-21 10:40:10,081 INFO L137 Inliner]: procedures = 161, calls = 836, calls flagged for inlining = 53, calls inlined = 28, statements flattened = 1124 [2022-07-21 10:40:10,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 10:40:10,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 10:40:10,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 10:40:10,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 10:40:10,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:09" (1/1) ... [2022-07-21 10:40:10,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:09" (1/1) ... [2022-07-21 10:40:10,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:09" (1/1) ... [2022-07-21 10:40:10,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:09" (1/1) ... [2022-07-21 10:40:10,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:09" (1/1) ... [2022-07-21 10:40:10,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:09" (1/1) ... [2022-07-21 10:40:10,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:09" (1/1) ... [2022-07-21 10:40:10,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 10:40:10,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 10:40:10,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 10:40:10,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 10:40:10,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:09" (1/1) ... [2022-07-21 10:40:10,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:40:10,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:10,285 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) [2022-07-21 10:40:10,322 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 [2022-07-21 10:40:10,351 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2022-07-21 10:40:10,352 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2022-07-21 10:40:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure pf_getgeo [2022-07-21 10:40:10,352 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_getgeo [2022-07-21 10:40:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-07-21 10:40:10,352 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-07-21 10:40:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2022-07-21 10:40:10,352 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2022-07-21 10:40:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2022-07-21 10:40:10,353 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2022-07-21 10:40:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 10:40:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pf_mutex [2022-07-21 10:40:10,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pf_mutex [2022-07-21 10:40:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure pf_reset [2022-07-21 10:40:10,353 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_reset [2022-07-21 10:40:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 10:40:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2022-07-21 10:40:10,354 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2022-07-21 10:40:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure pf_wait [2022-07-21 10:40:10,354 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_wait [2022-07-21 10:40:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-07-21 10:40:10,354 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-07-21 10:40:10,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 10:40:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 10:40:10,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pf_mutex [2022-07-21 10:40:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pf_mutex [2022-07-21 10:40:10,355 INFO L130 BoogieDeclarations]: Found specification of procedure pf_check_events [2022-07-21 10:40:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_check_events [2022-07-21 10:40:10,355 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-07-21 10:40:10,356 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-07-21 10:40:10,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 10:40:10,356 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 10:40:10,356 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 10:40:10,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 10:40:10,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 10:40:10,356 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-07-21 10:40:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-07-21 10:40:10,357 INFO L130 BoogieDeclarations]: Found specification of procedure pf_req_sense [2022-07-21 10:40:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_req_sense [2022-07-21 10:40:10,357 INFO L130 BoogieDeclarations]: Found specification of procedure pf_completion [2022-07-21 10:40:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_completion [2022-07-21 10:40:10,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 10:40:10,358 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 10:40:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 10:40:10,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 10:40:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 10:40:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 10:40:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 10:40:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 10:40:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure pf_atapi [2022-07-21 10:40:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_atapi [2022-07-21 10:40:10,360 INFO L130 BoogieDeclarations]: Found specification of procedure pf_command [2022-07-21 10:40:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_command [2022-07-21 10:40:10,360 INFO L130 BoogieDeclarations]: Found specification of procedure pf_probe [2022-07-21 10:40:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_probe [2022-07-21 10:40:10,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 10:40:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure pf_identify [2022-07-21 10:40:10,362 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_identify [2022-07-21 10:40:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure pf_sleep [2022-07-21 10:40:10,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_sleep [2022-07-21 10:40:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure pf_mode_sense [2022-07-21 10:40:10,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_mode_sense [2022-07-21 10:40:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2022-07-21 10:40:10,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2022-07-21 10:40:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 10:40:10,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 10:40:10,364 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2022-07-21 10:40:10,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2022-07-21 10:40:10,364 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2022-07-21 10:40:10,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2022-07-21 10:40:10,364 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2022-07-21 10:40:10,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2022-07-21 10:40:10,365 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-07-21 10:40:10,365 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-07-21 10:40:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2022-07-21 10:40:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2022-07-21 10:40:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure pf_lock [2022-07-21 10:40:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_lock [2022-07-21 10:40:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 10:40:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure xl [2022-07-21 10:40:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure xl [2022-07-21 10:40:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 10:40:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 10:40:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2022-07-21 10:40:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2022-07-21 10:40:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ioctl [2022-07-21 10:40:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ioctl [2022-07-21 10:40:10,740 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 10:40:10,754 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 10:40:13,302 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 10:40:13,314 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 10:40:13,314 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-21 10:40:13,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:40:13 BoogieIcfgContainer [2022-07-21 10:40:13,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 10:40:13,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 10:40:13,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 10:40:13,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 10:40:13,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:40:08" (1/3) ... [2022-07-21 10:40:13,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0d99f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:40:13, skipping insertion in model container [2022-07-21 10:40:13,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:09" (2/3) ... [2022-07-21 10:40:13,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0d99f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:40:13, skipping insertion in model container [2022-07-21 10:40:13,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:40:13" (3/3) ... [2022-07-21 10:40:13,326 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2022-07-21 10:40:13,339 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 10:40:13,339 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 10:40:13,392 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 10:40:13,397 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@62e6ef61, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@77b348fc [2022-07-21 10:40:13,398 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 10:40:13,403 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) [2022-07-21 10:40:13,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-21 10:40:13,412 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:13,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:13,413 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:13,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:13,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1009188828, now seen corresponding path program 1 times [2022-07-21 10:40:13,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:13,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826922067] [2022-07-21 10:40:13,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:13,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:13,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:13,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:13,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826922067] [2022-07-21 10:40:13,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826922067] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:13,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:40:13,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:40:13,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504360887] [2022-07-21 10:40:13,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:13,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:13,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:13,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:13,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:40:13,853 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) [2022-07-21 10:40:14,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:14,108 INFO L93 Difference]: Finished difference Result 1439 states and 2086 transitions. [2022-07-21 10:40:14,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:14,110 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 [2022-07-21 10:40:14,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:14,127 INFO L225 Difference]: With dead ends: 1439 [2022-07-21 10:40:14,128 INFO L226 Difference]: Without dead ends: 910 [2022-07-21 10:40:14,136 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 [2022-07-21 10:40:14,139 INFO L413 NwaCegarLoop]: 1007 mSDtfsCounter, 542 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:14,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 1684 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 10:40:14,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-07-21 10:40:14,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 896. [2022-07-21 10:40:14,236 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) [2022-07-21 10:40:14,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1227 transitions. [2022-07-21 10:40:14,248 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1227 transitions. Word has length 16 [2022-07-21 10:40:14,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:14,251 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1227 transitions. [2022-07-21 10:40:14,251 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) [2022-07-21 10:40:14,251 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1227 transitions. [2022-07-21 10:40:14,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-21 10:40:14,255 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:14,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:14,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 10:40:14,256 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:14,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:14,257 INFO L85 PathProgramCache]: Analyzing trace with hash -395988183, now seen corresponding path program 1 times [2022-07-21 10:40:14,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:14,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910081924] [2022-07-21 10:40:14,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:14,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:14,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:14,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:14,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910081924] [2022-07-21 10:40:14,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910081924] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:14,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:40:14,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 10:40:14,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59960867] [2022-07-21 10:40:14,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:14,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:14,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:14,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:14,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:40:14,399 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) [2022-07-21 10:40:14,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:14,476 INFO L93 Difference]: Finished difference Result 1789 states and 2451 transitions. [2022-07-21 10:40:14,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:14,477 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 [2022-07-21 10:40:14,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:14,486 INFO L225 Difference]: With dead ends: 1789 [2022-07-21 10:40:14,487 INFO L226 Difference]: Without dead ends: 896 [2022-07-21 10:40:14,490 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 [2022-07-21 10:40:14,492 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 [2022-07-21 10:40:14,496 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] [2022-07-21 10:40:14,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2022-07-21 10:40:14,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 896. [2022-07-21 10:40:14,553 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) [2022-07-21 10:40:14,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1225 transitions. [2022-07-21 10:40:14,563 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1225 transitions. Word has length 18 [2022-07-21 10:40:14,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:14,564 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1225 transitions. [2022-07-21 10:40:14,564 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) [2022-07-21 10:40:14,564 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1225 transitions. [2022-07-21 10:40:14,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-21 10:40:14,570 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:14,570 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] [2022-07-21 10:40:14,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 10:40:14,571 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:14,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:14,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1972979261, now seen corresponding path program 1 times [2022-07-21 10:40:14,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:14,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876382034] [2022-07-21 10:40:14,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:14,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:14,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 10:40:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:14,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:14,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:14,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876382034] [2022-07-21 10:40:14,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876382034] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:14,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:40:14,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:40:14,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241566843] [2022-07-21 10:40:14,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:14,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:14,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:14,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:14,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:40:14,721 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) [2022-07-21 10:40:14,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:14,819 INFO L93 Difference]: Finished difference Result 2152 states and 2933 transitions. [2022-07-21 10:40:14,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:14,820 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 [2022-07-21 10:40:14,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:14,828 INFO L225 Difference]: With dead ends: 2152 [2022-07-21 10:40:14,828 INFO L226 Difference]: Without dead ends: 1259 [2022-07-21 10:40:14,834 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 [2022-07-21 10:40:14,836 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 [2022-07-21 10:40:14,838 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] [2022-07-21 10:40:14,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2022-07-21 10:40:14,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1235. [2022-07-21 10:40:14,886 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) [2022-07-21 10:40:14,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1680 transitions. [2022-07-21 10:40:14,894 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1680 transitions. Word has length 22 [2022-07-21 10:40:14,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:14,894 INFO L495 AbstractCegarLoop]: Abstraction has 1235 states and 1680 transitions. [2022-07-21 10:40:14,895 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) [2022-07-21 10:40:14,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1680 transitions. [2022-07-21 10:40:14,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-21 10:40:14,896 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:14,896 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] [2022-07-21 10:40:14,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 10:40:14,899 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:14,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:14,901 INFO L85 PathProgramCache]: Analyzing trace with hash -184420453, now seen corresponding path program 1 times [2022-07-21 10:40:14,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:14,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762148726] [2022-07-21 10:40:14,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:14,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:14,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:14,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:14,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762148726] [2022-07-21 10:40:14,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762148726] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:14,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:40:14,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:40:14,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380451269] [2022-07-21 10:40:14,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:14,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:14,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:14,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:14,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:40:14,992 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) [2022-07-21 10:40:15,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:15,170 INFO L93 Difference]: Finished difference Result 2483 states and 3381 transitions. [2022-07-21 10:40:15,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:15,171 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 [2022-07-21 10:40:15,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:15,179 INFO L225 Difference]: With dead ends: 2483 [2022-07-21 10:40:15,179 INFO L226 Difference]: Without dead ends: 1251 [2022-07-21 10:40:15,185 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 [2022-07-21 10:40:15,186 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 [2022-07-21 10:40:15,186 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] [2022-07-21 10:40:15,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2022-07-21 10:40:15,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1237. [2022-07-21 10:40:15,251 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) [2022-07-21 10:40:15,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 1682 transitions. [2022-07-21 10:40:15,260 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 1682 transitions. Word has length 25 [2022-07-21 10:40:15,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:15,261 INFO L495 AbstractCegarLoop]: Abstraction has 1237 states and 1682 transitions. [2022-07-21 10:40:15,261 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) [2022-07-21 10:40:15,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 1682 transitions. [2022-07-21 10:40:15,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-21 10:40:15,262 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:15,262 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] [2022-07-21 10:40:15,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 10:40:15,263 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:15,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:15,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1602018988, now seen corresponding path program 1 times [2022-07-21 10:40:15,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:15,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111037912] [2022-07-21 10:40:15,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:15,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:15,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:15,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:15,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111037912] [2022-07-21 10:40:15,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111037912] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:15,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26618679] [2022-07-21 10:40:15,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:15,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:15,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:15,367 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) [2022-07-21 10:40:15,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 10:40:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:15,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:40:15,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:15,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:15,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:15,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26618679] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:15,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:15,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-21 10:40:15,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680739361] [2022-07-21 10:40:15,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:15,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:15,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:15,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:15,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:15,743 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) [2022-07-21 10:40:15,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:15,820 INFO L93 Difference]: Finished difference Result 2509 states and 3421 transitions. [2022-07-21 10:40:15,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:15,821 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 [2022-07-21 10:40:15,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:15,829 INFO L225 Difference]: With dead ends: 2509 [2022-07-21 10:40:15,830 INFO L226 Difference]: Without dead ends: 1275 [2022-07-21 10:40:15,835 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 [2022-07-21 10:40:15,836 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 [2022-07-21 10:40:15,837 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] [2022-07-21 10:40:15,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2022-07-21 10:40:15,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1241. [2022-07-21 10:40:15,885 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) [2022-07-21 10:40:15,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1686 transitions. [2022-07-21 10:40:15,894 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1686 transitions. Word has length 29 [2022-07-21 10:40:15,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:15,894 INFO L495 AbstractCegarLoop]: Abstraction has 1241 states and 1686 transitions. [2022-07-21 10:40:15,894 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) [2022-07-21 10:40:15,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1686 transitions. [2022-07-21 10:40:15,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-21 10:40:15,896 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:15,896 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] [2022-07-21 10:40:15,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:16,111 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 [2022-07-21 10:40:16,112 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:16,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:16,112 INFO L85 PathProgramCache]: Analyzing trace with hash -400370473, now seen corresponding path program 1 times [2022-07-21 10:40:16,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:16,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110940084] [2022-07-21 10:40:16,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:16,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:16,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:16,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:16,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:16,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110940084] [2022-07-21 10:40:16,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110940084] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:16,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049537138] [2022-07-21 10:40:16,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:16,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:16,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:16,284 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) [2022-07-21 10:40:16,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 10:40:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:16,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:16,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:16,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:16,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:16,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049537138] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:16,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:16,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-21 10:40:16,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620913313] [2022-07-21 10:40:16,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:16,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:16,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:16,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:16,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:16,681 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) [2022-07-21 10:40:16,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:16,749 INFO L93 Difference]: Finished difference Result 2783 states and 3848 transitions. [2022-07-21 10:40:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:16,750 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 [2022-07-21 10:40:16,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:16,760 INFO L225 Difference]: With dead ends: 2783 [2022-07-21 10:40:16,761 INFO L226 Difference]: Without dead ends: 1545 [2022-07-21 10:40:16,767 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 [2022-07-21 10:40:16,768 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 [2022-07-21 10:40:16,768 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] [2022-07-21 10:40:16,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2022-07-21 10:40:16,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1273. [2022-07-21 10:40:16,819 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) [2022-07-21 10:40:16,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1736 transitions. [2022-07-21 10:40:16,828 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1736 transitions. Word has length 34 [2022-07-21 10:40:16,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:16,829 INFO L495 AbstractCegarLoop]: Abstraction has 1273 states and 1736 transitions. [2022-07-21 10:40:16,829 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) [2022-07-21 10:40:16,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1736 transitions. [2022-07-21 10:40:16,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-21 10:40:16,830 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:16,830 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:16,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:17,055 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 [2022-07-21 10:40:17,056 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:17,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:17,056 INFO L85 PathProgramCache]: Analyzing trace with hash 538936913, now seen corresponding path program 1 times [2022-07-21 10:40:17,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:17,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047424481] [2022-07-21 10:40:17,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:17,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:17,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:17,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:40:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:17,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:17,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:17,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047424481] [2022-07-21 10:40:17,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047424481] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:17,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943342835] [2022-07-21 10:40:17,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:17,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:17,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:17,183 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) [2022-07-21 10:40:17,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 10:40:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:17,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:17,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:17,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:40:17,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:17,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943342835] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:17,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:17,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-21 10:40:17,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337893200] [2022-07-21 10:40:17,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:17,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:17,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:17,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:17,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:17,539 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) [2022-07-21 10:40:17,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:17,609 INFO L93 Difference]: Finished difference Result 1295 states and 1762 transitions. [2022-07-21 10:40:17,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:17,610 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 [2022-07-21 10:40:17,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:17,618 INFO L225 Difference]: With dead ends: 1295 [2022-07-21 10:40:17,619 INFO L226 Difference]: Without dead ends: 1284 [2022-07-21 10:40:17,620 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 [2022-07-21 10:40:17,621 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 [2022-07-21 10:40:17,621 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] [2022-07-21 10:40:17,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2022-07-21 10:40:17,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1273. [2022-07-21 10:40:17,672 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) [2022-07-21 10:40:17,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1735 transitions. [2022-07-21 10:40:17,681 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1735 transitions. Word has length 43 [2022-07-21 10:40:17,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:17,682 INFO L495 AbstractCegarLoop]: Abstraction has 1273 states and 1735 transitions. [2022-07-21 10:40:17,682 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) [2022-07-21 10:40:17,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1735 transitions. [2022-07-21 10:40:17,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-21 10:40:17,684 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:17,685 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] [2022-07-21 10:40:17,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:17,899 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 [2022-07-21 10:40:17,900 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:17,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:17,900 INFO L85 PathProgramCache]: Analyzing trace with hash 596195215, now seen corresponding path program 1 times [2022-07-21 10:40:17,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:17,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308347847] [2022-07-21 10:40:17,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:17,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:18,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:18,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:40:18,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:18,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:18,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308347847] [2022-07-21 10:40:18,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308347847] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:18,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621748504] [2022-07-21 10:40:18,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:18,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:18,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:18,020 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) [2022-07-21 10:40:18,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 10:40:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:18,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:18,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:18,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:40:18,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:18,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621748504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:18,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:18,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-21 10:40:18,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906915644] [2022-07-21 10:40:18,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:18,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:18,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:18,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:18,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:18,400 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) [2022-07-21 10:40:18,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:18,454 INFO L93 Difference]: Finished difference Result 1275 states and 1736 transitions. [2022-07-21 10:40:18,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:18,454 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 [2022-07-21 10:40:18,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:18,462 INFO L225 Difference]: With dead ends: 1275 [2022-07-21 10:40:18,462 INFO L226 Difference]: Without dead ends: 1272 [2022-07-21 10:40:18,464 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 [2022-07-21 10:40:18,465 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 [2022-07-21 10:40:18,465 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] [2022-07-21 10:40:18,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2022-07-21 10:40:18,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1272. [2022-07-21 10:40:18,516 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) [2022-07-21 10:40:18,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1733 transitions. [2022-07-21 10:40:18,523 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1733 transitions. Word has length 43 [2022-07-21 10:40:18,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:18,524 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 1733 transitions. [2022-07-21 10:40:18,524 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) [2022-07-21 10:40:18,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1733 transitions. [2022-07-21 10:40:18,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-21 10:40:18,525 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:18,526 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] [2022-07-21 10:40:18,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:18,735 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 [2022-07-21 10:40:18,736 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:18,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:18,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1301881938, now seen corresponding path program 1 times [2022-07-21 10:40:18,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:18,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310688754] [2022-07-21 10:40:18,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:18,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:18,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:18,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:40:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:18,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:18,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:18,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310688754] [2022-07-21 10:40:18,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310688754] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:18,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669489237] [2022-07-21 10:40:18,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:18,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:18,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:18,824 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) [2022-07-21 10:40:18,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 10:40:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:19,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 1115 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:19,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:19,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:40:19,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:19,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669489237] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:19,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:19,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-21 10:40:19,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77420591] [2022-07-21 10:40:19,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:19,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:19,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:19,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:19,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:19,194 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) [2022-07-21 10:40:19,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:19,242 INFO L93 Difference]: Finished difference Result 1274 states and 1734 transitions. [2022-07-21 10:40:19,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:19,243 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 [2022-07-21 10:40:19,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:19,251 INFO L225 Difference]: With dead ends: 1274 [2022-07-21 10:40:19,251 INFO L226 Difference]: Without dead ends: 1271 [2022-07-21 10:40:19,252 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 [2022-07-21 10:40:19,254 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 [2022-07-21 10:40:19,254 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] [2022-07-21 10:40:19,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2022-07-21 10:40:19,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1271. [2022-07-21 10:40:19,315 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) [2022-07-21 10:40:19,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1731 transitions. [2022-07-21 10:40:19,322 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1731 transitions. Word has length 44 [2022-07-21 10:40:19,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:19,322 INFO L495 AbstractCegarLoop]: Abstraction has 1271 states and 1731 transitions. [2022-07-21 10:40:19,323 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) [2022-07-21 10:40:19,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1731 transitions. [2022-07-21 10:40:19,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-21 10:40:19,324 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:19,324 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] [2022-07-21 10:40:19,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:19,546 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 [2022-07-21 10:40:19,547 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:19,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:19,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1703338738, now seen corresponding path program 1 times [2022-07-21 10:40:19,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:19,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258161406] [2022-07-21 10:40:19,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:19,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:19,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:19,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:40:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:19,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:19,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:19,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258161406] [2022-07-21 10:40:19,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258161406] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:19,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044142753] [2022-07-21 10:40:19,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:19,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:19,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:19,649 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) [2022-07-21 10:40:19,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 10:40:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:19,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:19,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:20,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:40:20,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:20,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044142753] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:20,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:20,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-21 10:40:20,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431195243] [2022-07-21 10:40:20,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:20,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:20,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:20,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:20,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:20,008 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) [2022-07-21 10:40:20,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:20,066 INFO L93 Difference]: Finished difference Result 1273 states and 1732 transitions. [2022-07-21 10:40:20,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:20,067 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 [2022-07-21 10:40:20,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:20,074 INFO L225 Difference]: With dead ends: 1273 [2022-07-21 10:40:20,075 INFO L226 Difference]: Without dead ends: 1270 [2022-07-21 10:40:20,076 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 [2022-07-21 10:40:20,077 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 [2022-07-21 10:40:20,077 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] [2022-07-21 10:40:20,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2022-07-21 10:40:20,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1270. [2022-07-21 10:40:20,146 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) [2022-07-21 10:40:20,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1729 transitions. [2022-07-21 10:40:20,152 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1729 transitions. Word has length 45 [2022-07-21 10:40:20,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:20,152 INFO L495 AbstractCegarLoop]: Abstraction has 1270 states and 1729 transitions. [2022-07-21 10:40:20,153 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) [2022-07-21 10:40:20,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1729 transitions. [2022-07-21 10:40:20,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-21 10:40:20,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:20,154 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] [2022-07-21 10:40:20,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:20,383 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 [2022-07-21 10:40:20,383 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:20,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:20,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1263602517, now seen corresponding path program 1 times [2022-07-21 10:40:20,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:20,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183303370] [2022-07-21 10:40:20,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:20,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:20,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:20,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:40:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:20,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:20,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:20,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183303370] [2022-07-21 10:40:20,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183303370] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:20,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130964920] [2022-07-21 10:40:20,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:20,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:20,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:20,476 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) [2022-07-21 10:40:20,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 10:40:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:20,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:20,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:20,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:40:20,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:20,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130964920] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:20,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:20,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-21 10:40:20,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433715191] [2022-07-21 10:40:20,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:20,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:20,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:20,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:20,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:20,848 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) [2022-07-21 10:40:20,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:20,922 INFO L93 Difference]: Finished difference Result 1480 states and 1999 transitions. [2022-07-21 10:40:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:20,923 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 [2022-07-21 10:40:20,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:20,936 INFO L225 Difference]: With dead ends: 1480 [2022-07-21 10:40:20,937 INFO L226 Difference]: Without dead ends: 1448 [2022-07-21 10:40:20,938 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 [2022-07-21 10:40:20,938 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 [2022-07-21 10:40:20,939 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] [2022-07-21 10:40:20,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2022-07-21 10:40:21,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1448. [2022-07-21 10:40:21,004 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) [2022-07-21 10:40:21,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1960 transitions. [2022-07-21 10:40:21,011 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1960 transitions. Word has length 46 [2022-07-21 10:40:21,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:21,012 INFO L495 AbstractCegarLoop]: Abstraction has 1448 states and 1960 transitions. [2022-07-21 10:40:21,013 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) [2022-07-21 10:40:21,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1960 transitions. [2022-07-21 10:40:21,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-21 10:40:21,014 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:21,015 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] [2022-07-21 10:40:21,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:21,230 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 [2022-07-21 10:40:21,230 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:21,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:21,231 INFO L85 PathProgramCache]: Analyzing trace with hash 127015852, now seen corresponding path program 1 times [2022-07-21 10:40:21,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:21,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214729051] [2022-07-21 10:40:21,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:21,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:21,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:21,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:40:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:21,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 10:40:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:21,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 10:40:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:21,317 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:21,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:21,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214729051] [2022-07-21 10:40:21,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214729051] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:21,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617197868] [2022-07-21 10:40:21,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:21,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:21,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:21,319 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) [2022-07-21 10:40:21,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-21 10:40:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:21,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:40:21,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:21,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:40:21,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:21,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617197868] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:21,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:21,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-07-21 10:40:21,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354520965] [2022-07-21 10:40:21,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:21,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:21,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:21,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:21,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 10:40:21,659 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) [2022-07-21 10:40:21,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:21,805 INFO L93 Difference]: Finished difference Result 3702 states and 4991 transitions. [2022-07-21 10:40:21,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:21,806 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 [2022-07-21 10:40:21,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:21,819 INFO L225 Difference]: With dead ends: 3702 [2022-07-21 10:40:21,819 INFO L226 Difference]: Without dead ends: 2257 [2022-07-21 10:40:21,826 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 [2022-07-21 10:40:21,826 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:21,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 1344 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 10:40:21,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2022-07-21 10:40:21,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2254. [2022-07-21 10:40:21,919 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) [2022-07-21 10:40:21,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 3024 transitions. [2022-07-21 10:40:21,931 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 3024 transitions. Word has length 64 [2022-07-21 10:40:21,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:21,931 INFO L495 AbstractCegarLoop]: Abstraction has 2254 states and 3024 transitions. [2022-07-21 10:40:21,931 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) [2022-07-21 10:40:21,932 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 3024 transitions. [2022-07-21 10:40:21,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-21 10:40:21,937 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:21,937 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] [2022-07-21 10:40:21,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:22,151 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 [2022-07-21 10:40:22,151 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:22,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:22,152 INFO L85 PathProgramCache]: Analyzing trace with hash -898697336, now seen corresponding path program 1 times [2022-07-21 10:40:22,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:22,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633508486] [2022-07-21 10:40:22,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:22,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:40:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 10:40:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 10:40:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 10:40:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:40:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:40:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:40:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:40:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:22,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:22,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633508486] [2022-07-21 10:40:22,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633508486] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:22,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987253667] [2022-07-21 10:40:22,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:22,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:22,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:22,494 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) [2022-07-21 10:40:22,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-21 10:40:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:22,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 1795 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:22,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:22,950 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-21 10:40:22,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:22,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987253667] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:22,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:22,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2022-07-21 10:40:22,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534715537] [2022-07-21 10:40:22,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:22,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:22,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:22,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:22,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:40:22,953 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) [2022-07-21 10:40:23,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:23,053 INFO L93 Difference]: Finished difference Result 4533 states and 6169 transitions. [2022-07-21 10:40:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:23,054 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 [2022-07-21 10:40:23,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:23,069 INFO L225 Difference]: With dead ends: 4533 [2022-07-21 10:40:23,069 INFO L226 Difference]: Without dead ends: 2282 [2022-07-21 10:40:23,080 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 [2022-07-21 10:40:23,081 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 [2022-07-21 10:40:23,081 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] [2022-07-21 10:40:23,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2022-07-21 10:40:23,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2261. [2022-07-21 10:40:23,190 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) [2022-07-21 10:40:23,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 3031 transitions. [2022-07-21 10:40:23,201 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 3031 transitions. Word has length 123 [2022-07-21 10:40:23,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:23,201 INFO L495 AbstractCegarLoop]: Abstraction has 2261 states and 3031 transitions. [2022-07-21 10:40:23,202 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) [2022-07-21 10:40:23,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 3031 transitions. [2022-07-21 10:40:23,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-21 10:40:23,207 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:23,208 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] [2022-07-21 10:40:23,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:23,427 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 [2022-07-21 10:40:23,427 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:23,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:23,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1298455087, now seen corresponding path program 1 times [2022-07-21 10:40:23,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:23,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114276181] [2022-07-21 10:40:23,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:23,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:40:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 10:40:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 10:40:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 10:40:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:40:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:40:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:40:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:40:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 10:40:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:40:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:40:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:40:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:40:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:23,917 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-21 10:40:23,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:23,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114276181] [2022-07-21 10:40:23,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114276181] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:23,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432216894] [2022-07-21 10:40:23,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:23,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:23,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:23,920 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) [2022-07-21 10:40:23,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-21 10:40:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:24,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 2220 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:24,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:24,453 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-07-21 10:40:24,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:24,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432216894] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:24,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:24,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2022-07-21 10:40:24,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347541220] [2022-07-21 10:40:24,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:24,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:24,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:24,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:24,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:40:24,456 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) [2022-07-21 10:40:24,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:24,723 INFO L93 Difference]: Finished difference Result 4547 states and 6174 transitions. [2022-07-21 10:40:24,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:24,724 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 [2022-07-21 10:40:24,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:24,738 INFO L225 Difference]: With dead ends: 4547 [2022-07-21 10:40:24,738 INFO L226 Difference]: Without dead ends: 2289 [2022-07-21 10:40:24,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:40:24,749 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 3 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:24,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1327 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 10:40:24,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2022-07-21 10:40:24,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 2268. [2022-07-21 10:40:24,868 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) [2022-07-21 10:40:24,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 3038 transitions. [2022-07-21 10:40:24,881 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 3038 transitions. Word has length 173 [2022-07-21 10:40:24,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:24,881 INFO L495 AbstractCegarLoop]: Abstraction has 2268 states and 3038 transitions. [2022-07-21 10:40:24,882 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) [2022-07-21 10:40:24,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 3038 transitions. [2022-07-21 10:40:24,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-21 10:40:24,890 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:24,890 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] [2022-07-21 10:40:24,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:25,103 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 [2022-07-21 10:40:25,104 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:25,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:25,104 INFO L85 PathProgramCache]: Analyzing trace with hash -390488655, now seen corresponding path program 1 times [2022-07-21 10:40:25,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:25,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973847682] [2022-07-21 10:40:25,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:25,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:40:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 10:40:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 10:40:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 10:40:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:40:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:40:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:40:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:40:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 10:40:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:40:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:40:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:40:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:40:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:25,574 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-21 10:40:25,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:25,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973847682] [2022-07-21 10:40:25,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973847682] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:25,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720226597] [2022-07-21 10:40:25,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:25,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:25,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:25,579 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) [2022-07-21 10:40:25,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-21 10:40:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:26,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:26,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:26,216 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-21 10:40:26,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:40:26,451 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-21 10:40:26,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720226597] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:40:26,452 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:40:26,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-07-21 10:40:26,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314580281] [2022-07-21 10:40:26,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:40:26,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 10:40:26,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:26,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 10:40:26,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-21 10:40:26,454 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) [2022-07-21 10:40:41,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:41,634 INFO L93 Difference]: Finished difference Result 5681 states and 8129 transitions. [2022-07-21 10:40:41,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 10:40:41,636 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 [2022-07-21 10:40:41,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:41,660 INFO L225 Difference]: With dead ends: 5681 [2022-07-21 10:40:41,660 INFO L226 Difference]: Without dead ends: 3416 [2022-07-21 10:40:41,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-07-21 10:40:41,673 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 905 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 4509 mSolverCounterSat, 648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 5157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 4509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:41,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 2200 Invalid, 5157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [648 Valid, 4509 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2022-07-21 10:40:41,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3416 states. [2022-07-21 10:40:41,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3416 to 2368. [2022-07-21 10:40:41,829 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) [2022-07-21 10:40:41,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2368 states to 2368 states and 3186 transitions. [2022-07-21 10:40:41,840 INFO L78 Accepts]: Start accepts. Automaton has 2368 states and 3186 transitions. Word has length 173 [2022-07-21 10:40:41,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:41,841 INFO L495 AbstractCegarLoop]: Abstraction has 2368 states and 3186 transitions. [2022-07-21 10:40:41,841 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) [2022-07-21 10:40:41,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2368 states and 3186 transitions. [2022-07-21 10:40:41,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-21 10:40:41,847 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:41,847 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] [2022-07-21 10:40:41,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:42,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-21 10:40:42,072 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:42,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:42,072 INFO L85 PathProgramCache]: Analyzing trace with hash -706170954, now seen corresponding path program 1 times [2022-07-21 10:40:42,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:42,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137117297] [2022-07-21 10:40:42,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:42,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:40:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:40:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 10:40:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:40:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 10:40:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:40:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:40:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:40:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:40:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:40:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 10:40:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:40:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 10:40:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:40:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:40:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:40:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:40:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:42,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:40:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:40:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:40:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 10:40:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,827 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-07-21 10:40:42,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:42,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137117297] [2022-07-21 10:40:42,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137117297] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:42,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49554495] [2022-07-21 10:40:42,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:42,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:42,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:42,832 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) [2022-07-21 10:40:42,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-21 10:40:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:43,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 2702 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:43,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:43,563 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-07-21 10:40:43,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:40:43,936 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-07-21 10:40:43,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49554495] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:40:43,937 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:40:43,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-07-21 10:40:43,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551202214] [2022-07-21 10:40:43,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:40:43,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 10:40:43,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:43,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 10:40:43,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-21 10:40:43,940 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) [2022-07-21 10:40:53,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:53,710 INFO L93 Difference]: Finished difference Result 6076 states and 8756 transitions. [2022-07-21 10:40:53,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 10:40:53,710 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 [2022-07-21 10:40:53,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:53,738 INFO L225 Difference]: With dead ends: 6076 [2022-07-21 10:40:53,738 INFO L226 Difference]: Without dead ends: 3711 [2022-07-21 10:40:53,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 572 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-07-21 10:40:53,750 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 1125 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 3099 mSolverCounterSat, 882 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 3981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 882 IncrementalHoareTripleChecker+Valid, 3099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:53,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 1865 Invalid, 3981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [882 Valid, 3099 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-07-21 10:40:53,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3711 states. [2022-07-21 10:40:53,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3711 to 2649. [2022-07-21 10:40:53,898 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) [2022-07-21 10:40:53,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 3596 transitions. [2022-07-21 10:40:53,913 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 3596 transitions. Word has length 251 [2022-07-21 10:40:53,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:53,913 INFO L495 AbstractCegarLoop]: Abstraction has 2649 states and 3596 transitions. [2022-07-21 10:40:53,913 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) [2022-07-21 10:40:53,914 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 3596 transitions. [2022-07-21 10:40:53,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-21 10:40:53,921 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:53,921 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] [2022-07-21 10:40:53,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:54,135 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 [2022-07-21 10:40:54,136 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:54,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:54,136 INFO L85 PathProgramCache]: Analyzing trace with hash -231589981, now seen corresponding path program 1 times [2022-07-21 10:40:54,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:54,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964024893] [2022-07-21 10:40:54,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:54,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:40:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:40:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:40:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:40:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 10:40:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:40:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:40:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:40:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:40:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:40:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:40:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 10:40:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:40:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:40:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:40:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:40:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:40:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:40:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:40:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 10:40:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:54,817 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-07-21 10:40:54,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:54,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964024893] [2022-07-21 10:40:54,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964024893] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:54,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520293193] [2022-07-21 10:40:54,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:54,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:54,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:54,819 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) [2022-07-21 10:40:54,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-21 10:40:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:55,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 2675 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:40:55,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:55,596 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-21 10:40:55,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:55,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520293193] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:55,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:55,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 11 [2022-07-21 10:40:55,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766589775] [2022-07-21 10:40:55,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:55,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:55,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:55,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:55,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-21 10:40:55,600 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) [2022-07-21 10:40:55,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:55,719 INFO L93 Difference]: Finished difference Result 5298 states and 7195 transitions. [2022-07-21 10:40:55,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:55,720 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 [2022-07-21 10:40:55,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:55,746 INFO L225 Difference]: With dead ends: 5298 [2022-07-21 10:40:55,746 INFO L226 Difference]: Without dead ends: 2652 [2022-07-21 10:40:55,758 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 [2022-07-21 10:40:55,759 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 [2022-07-21 10:40:55,760 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] [2022-07-21 10:40:55,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2022-07-21 10:40:55,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 2652. [2022-07-21 10:40:55,917 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) [2022-07-21 10:40:55,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 3599 transitions. [2022-07-21 10:40:55,929 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 3599 transitions. Word has length 253 [2022-07-21 10:40:55,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:55,929 INFO L495 AbstractCegarLoop]: Abstraction has 2652 states and 3599 transitions. [2022-07-21 10:40:55,930 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) [2022-07-21 10:40:55,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 3599 transitions. [2022-07-21 10:40:55,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-21 10:40:55,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:55,937 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] [2022-07-21 10:40:55,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:56,149 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 [2022-07-21 10:40:56,150 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:56,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:56,150 INFO L85 PathProgramCache]: Analyzing trace with hash 642075621, now seen corresponding path program 1 times [2022-07-21 10:40:56,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:56,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793387216] [2022-07-21 10:40:56,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:56,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:40:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:40:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:40:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:40:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 10:40:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:40:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:40:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:40:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:40:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:40:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:40:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 10:40:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:40:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:40:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:40:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:40:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:40:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:40:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:40:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 10:40:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,776 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-07-21 10:40:56,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:56,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793387216] [2022-07-21 10:40:56,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793387216] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:56,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295120572] [2022-07-21 10:40:56,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:56,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:56,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:56,778 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) [2022-07-21 10:40:56,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-21 10:40:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:57,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 2680 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:57,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:57,535 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-21 10:40:57,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:57,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295120572] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:57,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:57,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-21 10:40:57,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788696354] [2022-07-21 10:40:57,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:57,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:40:57,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:57,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:40:57,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-21 10:40:57,537 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) [2022-07-21 10:40:57,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:57,668 INFO L93 Difference]: Finished difference Result 5310 states and 7207 transitions. [2022-07-21 10:40:57,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:40:57,669 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 [2022-07-21 10:40:57,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:57,680 INFO L225 Difference]: With dead ends: 5310 [2022-07-21 10:40:57,680 INFO L226 Difference]: Without dead ends: 2652 [2022-07-21 10:40:57,690 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 [2022-07-21 10:40:57,691 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 [2022-07-21 10:40:57,691 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] [2022-07-21 10:40:57,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2022-07-21 10:40:57,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 2652. [2022-07-21 10:40:57,853 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) [2022-07-21 10:40:57,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 3596 transitions. [2022-07-21 10:40:57,864 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 3596 transitions. Word has length 253 [2022-07-21 10:40:57,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:57,865 INFO L495 AbstractCegarLoop]: Abstraction has 2652 states and 3596 transitions. [2022-07-21 10:40:57,865 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) [2022-07-21 10:40:57,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 3596 transitions. [2022-07-21 10:40:57,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-21 10:40:57,873 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:57,873 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] [2022-07-21 10:40:57,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:58,087 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 [2022-07-21 10:40:58,088 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:58,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:58,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1301349854, now seen corresponding path program 1 times [2022-07-21 10:40:58,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:58,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576342339] [2022-07-21 10:40:58,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:58,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:40:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:40:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:40:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 10:40:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 10:40:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:40:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:40:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:40:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:40:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:40:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:40:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 10:40:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:40:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:40:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:40:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:40:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:40:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:40:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:40:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:40:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 10:40:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:58,624 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-07-21 10:40:58,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:58,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576342339] [2022-07-21 10:40:58,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576342339] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:58,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058224302] [2022-07-21 10:40:58,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:58,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:58,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:58,627 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) [2022-07-21 10:40:58,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-21 10:40:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:59,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 2709 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:40:59,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:59,432 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-21 10:40:59,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:59,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058224302] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:59,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:59,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2022-07-21 10:40:59,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720574863] [2022-07-21 10:40:59,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:59,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:59,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:59,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:59,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:40:59,435 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) [2022-07-21 10:40:59,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:59,562 INFO L93 Difference]: Finished difference Result 5340 states and 7246 transitions. [2022-07-21 10:40:59,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:59,563 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 [2022-07-21 10:40:59,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:59,574 INFO L225 Difference]: With dead ends: 5340 [2022-07-21 10:40:59,575 INFO L226 Difference]: Without dead ends: 2691 [2022-07-21 10:40:59,585 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 [2022-07-21 10:40:59,585 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 [2022-07-21 10:40:59,586 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] [2022-07-21 10:40:59,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2022-07-21 10:40:59,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2661. [2022-07-21 10:40:59,704 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) [2022-07-21 10:40:59,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3605 transitions. [2022-07-21 10:40:59,715 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3605 transitions. Word has length 257 [2022-07-21 10:40:59,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:59,715 INFO L495 AbstractCegarLoop]: Abstraction has 2661 states and 3605 transitions. [2022-07-21 10:40:59,716 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) [2022-07-21 10:40:59,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3605 transitions. [2022-07-21 10:40:59,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-07-21 10:40:59,723 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:59,723 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] [2022-07-21 10:40:59,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:59,943 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 [2022-07-21 10:40:59,944 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:59,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:59,944 INFO L85 PathProgramCache]: Analyzing trace with hash -290026580, now seen corresponding path program 1 times [2022-07-21 10:40:59,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:59,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183242288] [2022-07-21 10:40:59,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:59,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:41:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:41:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:41:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 10:41:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 10:41:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:41:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 10:41:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:41:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:41:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:41:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:41:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 10:41:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:41:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:41:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:41:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:41:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:41:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 10:41:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:00,579 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-07-21 10:41:00,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:41:00,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183242288] [2022-07-21 10:41:00,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183242288] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:41:00,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817471347] [2022-07-21 10:41:00,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:00,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:41:00,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:41:00,581 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) [2022-07-21 10:41:00,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-21 10:41:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:01,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 2732 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:41:01,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:41:01,448 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-21 10:41:01,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:41:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-21 10:41:01,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817471347] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:41:01,787 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:41:01,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 17 [2022-07-21 10:41:01,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397436204] [2022-07-21 10:41:01,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:41:01,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-21 10:41:01,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:41:01,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-21 10:41:01,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-07-21 10:41:01,790 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) [2022-07-21 10:41:18,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:41:18,422 INFO L93 Difference]: Finished difference Result 6845 states and 9986 transitions. [2022-07-21 10:41:18,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 10:41:18,423 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 [2022-07-21 10:41:18,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:41:18,441 INFO L225 Difference]: With dead ends: 6845 [2022-07-21 10:41:18,442 INFO L226 Difference]: Without dead ends: 4187 [2022-07-21 10:41:18,454 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 [2022-07-21 10:41:18,455 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 958 mSDsluCounter, 2033 mSDsCounter, 0 mSdLazyCounter, 6115 mSolverCounterSat, 722 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 6837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 6115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-07-21 10:41:18,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 2682 Invalid, 6837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [722 Valid, 6115 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2022-07-21 10:41:18,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4187 states. [2022-07-21 10:41:18,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4187 to 3063. [2022-07-21 10:41:18,639 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) [2022-07-21 10:41:18,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3063 states to 3063 states and 4181 transitions. [2022-07-21 10:41:18,652 INFO L78 Accepts]: Start accepts. Automaton has 3063 states and 4181 transitions. Word has length 264 [2022-07-21 10:41:18,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:41:18,652 INFO L495 AbstractCegarLoop]: Abstraction has 3063 states and 4181 transitions. [2022-07-21 10:41:18,653 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) [2022-07-21 10:41:18,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3063 states and 4181 transitions. [2022-07-21 10:41:18,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-07-21 10:41:18,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:41:18,662 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] [2022-07-21 10:41:18,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-21 10:41:18,875 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 [2022-07-21 10:41:18,876 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:41:18,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:41:18,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1053836754, now seen corresponding path program 1 times [2022-07-21 10:41:18,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:41:18,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140600746] [2022-07-21 10:41:18,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:18,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:41:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:41:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:41:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 10:41:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 10:41:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 10:41:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 10:41:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:41:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:41:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 10:41:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:41:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:19,466 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-07-21 10:41:19,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:41:19,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140600746] [2022-07-21 10:41:19,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140600746] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:41:19,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452634742] [2022-07-21 10:41:19,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:19,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:41:19,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:41:19,469 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) [2022-07-21 10:41:19,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-21 10:41:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:20,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 2848 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:41:20,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:41:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-07-21 10:41:20,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:41:20,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452634742] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:41:20,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:41:20,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2022-07-21 10:41:20,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015132456] [2022-07-21 10:41:20,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:41:20,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:41:20,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:41:20,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:41:20,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-07-21 10:41:20,459 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) [2022-07-21 10:41:20,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:41:20,613 INFO L93 Difference]: Finished difference Result 6129 states and 8365 transitions. [2022-07-21 10:41:20,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:41:20,614 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 [2022-07-21 10:41:20,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:41:20,633 INFO L225 Difference]: With dead ends: 6129 [2022-07-21 10:41:20,633 INFO L226 Difference]: Without dead ends: 2991 [2022-07-21 10:41:20,643 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 [2022-07-21 10:41:20,645 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 [2022-07-21 10:41:20,645 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] [2022-07-21 10:41:20,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2022-07-21 10:41:20,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2973. [2022-07-21 10:41:20,856 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) [2022-07-21 10:41:20,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2973 states to 2973 states and 4049 transitions. [2022-07-21 10:41:20,868 INFO L78 Accepts]: Start accepts. Automaton has 2973 states and 4049 transitions. Word has length 303 [2022-07-21 10:41:20,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:41:20,869 INFO L495 AbstractCegarLoop]: Abstraction has 2973 states and 4049 transitions. [2022-07-21 10:41:20,869 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) [2022-07-21 10:41:20,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2973 states and 4049 transitions. [2022-07-21 10:41:20,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-07-21 10:41:20,876 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:41:20,876 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] [2022-07-21 10:41:20,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-21 10:41:21,095 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 [2022-07-21 10:41:21,096 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:41:21,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:41:21,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1100862756, now seen corresponding path program 1 times [2022-07-21 10:41:21,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:41:21,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645349676] [2022-07-21 10:41:21,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:21,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:41:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 10:41:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 10:41:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:41:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 10:41:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 10:41:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 10:41:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:21,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:41:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:21,634 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-07-21 10:41:21,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:41:21,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645349676] [2022-07-21 10:41:21,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645349676] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:41:21,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046953619] [2022-07-21 10:41:21,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:21,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:41:21,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:41:21,637 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) [2022-07-21 10:41:21,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-21 10:41:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:22,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 2901 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:41:22,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:41:22,757 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-07-21 10:41:22,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:41:22,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046953619] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:41:22,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:41:22,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 11 [2022-07-21 10:41:22,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140085873] [2022-07-21 10:41:22,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:41:22,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:41:22,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:41:22,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:41:22,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-21 10:41:22,760 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) [2022-07-21 10:41:22,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:41:22,985 INFO L93 Difference]: Finished difference Result 8556 states and 11586 transitions. [2022-07-21 10:41:22,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:41:22,986 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 [2022-07-21 10:41:22,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:41:23,013 INFO L225 Difference]: With dead ends: 8556 [2022-07-21 10:41:23,014 INFO L226 Difference]: Without dead ends: 5577 [2022-07-21 10:41:23,025 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 [2022-07-21 10:41:23,026 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 [2022-07-21 10:41:23,026 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] [2022-07-21 10:41:23,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5577 states. [2022-07-21 10:41:23,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5577 to 4814. [2022-07-21 10:41:23,355 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) [2022-07-21 10:41:23,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4814 states to 4814 states and 6488 transitions. [2022-07-21 10:41:23,374 INFO L78 Accepts]: Start accepts. Automaton has 4814 states and 6488 transitions. Word has length 301 [2022-07-21 10:41:23,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:41:23,374 INFO L495 AbstractCegarLoop]: Abstraction has 4814 states and 6488 transitions. [2022-07-21 10:41:23,375 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) [2022-07-21 10:41:23,375 INFO L276 IsEmpty]: Start isEmpty. Operand 4814 states and 6488 transitions. [2022-07-21 10:41:23,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-07-21 10:41:23,383 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:41:23,383 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] [2022-07-21 10:41:23,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-21 10:41:23,603 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 [2022-07-21 10:41:23,603 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:41:23,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:41:23,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1451902732, now seen corresponding path program 1 times [2022-07-21 10:41:23,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:41:23,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591654820] [2022-07-21 10:41:23,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:23,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:41:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:23,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 10:41:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:23,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:41:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:23,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 10:41:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:41:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:23,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 10:41:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:23,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 10:41:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:23,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:23,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:23,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:23,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:23,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:41:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:24,161 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 9 proven. 22 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-07-21 10:41:24,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:41:24,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591654820] [2022-07-21 10:41:24,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591654820] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:41:24,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160486210] [2022-07-21 10:41:24,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:24,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:41:24,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:41:24,164 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) [2022-07-21 10:41:24,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-21 10:41:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:25,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 3050 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 10:41:25,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:41:25,164 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-07-21 10:41:25,164 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:41:25,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160486210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:41:25,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:41:25,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2022-07-21 10:41:25,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988452857] [2022-07-21 10:41:25,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:41:25,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:41:25,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:41:25,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:41:25,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-07-21 10:41:25,166 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) [2022-07-21 10:41:25,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:41:25,399 INFO L93 Difference]: Finished difference Result 10532 states and 14317 transitions. [2022-07-21 10:41:25,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 10:41:25,400 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 [2022-07-21 10:41:25,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:41:25,425 INFO L225 Difference]: With dead ends: 10532 [2022-07-21 10:41:25,425 INFO L226 Difference]: Without dead ends: 5721 [2022-07-21 10:41:25,441 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 [2022-07-21 10:41:25,442 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 [2022-07-21 10:41:25,442 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] [2022-07-21 10:41:25,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5721 states. [2022-07-21 10:41:25,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5721 to 4856. [2022-07-21 10:41:25,778 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) [2022-07-21 10:41:25,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4856 states to 4856 states and 6548 transitions. [2022-07-21 10:41:25,797 INFO L78 Accepts]: Start accepts. Automaton has 4856 states and 6548 transitions. Word has length 305 [2022-07-21 10:41:25,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:41:25,797 INFO L495 AbstractCegarLoop]: Abstraction has 4856 states and 6548 transitions. [2022-07-21 10:41:25,797 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) [2022-07-21 10:41:25,797 INFO L276 IsEmpty]: Start isEmpty. Operand 4856 states and 6548 transitions. [2022-07-21 10:41:25,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2022-07-21 10:41:25,806 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:41:25,807 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, 1, 1] [2022-07-21 10:41:25,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-21 10:41:26,023 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 [2022-07-21 10:41:26,024 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:41:26,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:41:26,024 INFO L85 PathProgramCache]: Analyzing trace with hash 250111231, now seen corresponding path program 1 times [2022-07-21 10:41:26,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:41:26,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791313412] [2022-07-21 10:41:26,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:26,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:41:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:41:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:41:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:41:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:41:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 10:41:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:41:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:41:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-21 10:41:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-21 10:41:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-21 10:41:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-21 10:41:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:41:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1115 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2022-07-21 10:41:27,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:41:27,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791313412] [2022-07-21 10:41:27,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791313412] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:41:27,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426727302] [2022-07-21 10:41:27,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:27,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:41:27,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:41:27,111 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) [2022-07-21 10:41:27,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-21 10:41:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:28,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 4430 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:41:28,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:41:28,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1115 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1069 trivial. 0 not checked. [2022-07-21 10:41:28,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:41:28,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426727302] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:41:28,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:41:28,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2022-07-21 10:41:28,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923866812] [2022-07-21 10:41:28,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:41:28,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:41:28,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:41:28,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:41:28,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-07-21 10:41:28,372 INFO L87 Difference]: Start difference. First operand 4856 states and 6548 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2022-07-21 10:41:28,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:41:28,654 INFO L93 Difference]: Finished difference Result 9775 states and 13258 transitions. [2022-07-21 10:41:28,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:41:28,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 498 [2022-07-21 10:41:28,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:41:28,678 INFO L225 Difference]: With dead ends: 9775 [2022-07-21 10:41:28,678 INFO L226 Difference]: Without dead ends: 4922 [2022-07-21 10:41:28,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-07-21 10:41:28,694 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 [2022-07-21 10:41:28,694 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] [2022-07-21 10:41:28,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4922 states. [2022-07-21 10:41:28,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4922 to 4868. [2022-07-21 10:41:28,957 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) [2022-07-21 10:41:28,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4868 states to 4868 states and 6560 transitions. [2022-07-21 10:41:28,975 INFO L78 Accepts]: Start accepts. Automaton has 4868 states and 6560 transitions. Word has length 498 [2022-07-21 10:41:28,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:41:28,976 INFO L495 AbstractCegarLoop]: Abstraction has 4868 states and 6560 transitions. [2022-07-21 10:41:28,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2022-07-21 10:41:28,976 INFO L276 IsEmpty]: Start isEmpty. Operand 4868 states and 6560 transitions. [2022-07-21 10:41:28,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2022-07-21 10:41:28,985 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:41:28,986 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] [2022-07-21 10:41:29,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-21 10:41:29,211 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 [2022-07-21 10:41:29,212 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:41:29,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:41:29,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1020209356, now seen corresponding path program 1 times [2022-07-21 10:41:29,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:41:29,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531368170] [2022-07-21 10:41:29,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:29,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:41:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:41:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:41:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:41:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:41:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:41:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 10:41:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 10:41:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:41:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-21 10:41:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-07-21 10:41:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-21 10:41:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:29,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-21 10:41:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:41:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:30,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:30,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 1144 trivial. 0 not checked. [2022-07-21 10:41:30,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:41:30,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531368170] [2022-07-21 10:41:30,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531368170] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:41:30,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560038076] [2022-07-21 10:41:30,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:30,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:41:30,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:41:30,249 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) [2022-07-21 10:41:30,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-21 10:41:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:31,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 4494 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:41:31,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:41:31,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1178 trivial. 0 not checked. [2022-07-21 10:41:31,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:41:31,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560038076] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:41:31,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:41:31,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2022-07-21 10:41:31,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258816598] [2022-07-21 10:41:31,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:41:31,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:41:31,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:41:31,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:41:31,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-07-21 10:41:31,708 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) [2022-07-21 10:41:31,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:41:31,958 INFO L93 Difference]: Finished difference Result 9907 states and 13438 transitions. [2022-07-21 10:41:31,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:41:31,959 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 [2022-07-21 10:41:31,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:41:31,984 INFO L225 Difference]: With dead ends: 9907 [2022-07-21 10:41:31,984 INFO L226 Difference]: Without dead ends: 5042 [2022-07-21 10:41:31,999 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 [2022-07-21 10:41:32,000 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 [2022-07-21 10:41:32,000 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] [2022-07-21 10:41:32,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5042 states. [2022-07-21 10:41:32,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5042 to 4880. [2022-07-21 10:41:32,256 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) [2022-07-21 10:41:32,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4880 states to 4880 states and 6572 transitions. [2022-07-21 10:41:32,274 INFO L78 Accepts]: Start accepts. Automaton has 4880 states and 6572 transitions. Word has length 511 [2022-07-21 10:41:32,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:41:32,275 INFO L495 AbstractCegarLoop]: Abstraction has 4880 states and 6572 transitions. [2022-07-21 10:41:32,275 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) [2022-07-21 10:41:32,275 INFO L276 IsEmpty]: Start isEmpty. Operand 4880 states and 6572 transitions. [2022-07-21 10:41:32,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2022-07-21 10:41:32,284 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:41:32,285 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] [2022-07-21 10:41:32,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-21 10:41:32,499 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 [2022-07-21 10:41:32,500 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:41:32,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:41:32,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1364662616, now seen corresponding path program 1 times [2022-07-21 10:41:32,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:41:32,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846563660] [2022-07-21 10:41:32,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:32,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:41:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:32,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:41:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:32,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:41:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:32,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:41:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:32,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:32,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:32,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:41:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:32,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 10:41:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:32,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:32,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:41:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:32,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 10:41:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:32,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:41:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:32,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:41:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-07-21 10:41:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-21 10:41:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2022-07-21 10:41:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-21 10:41:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:41:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:41:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:41:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 10:41:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:33,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1295 backedges. 2 proven. 79 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2022-07-21 10:41:33,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:41:33,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846563660] [2022-07-21 10:41:33,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846563660] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:41:33,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808246619] [2022-07-21 10:41:33,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:33,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:41:33,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:41:33,564 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) [2022-07-21 10:41:33,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-21 10:41:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:35,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 4532 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:41:35,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:41:35,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1295 backedges. 222 proven. 1 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2022-07-21 10:41:35,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:41:35,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1295 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2022-07-21 10:41:35,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808246619] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:41:35,932 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:41:35,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2022-07-21 10:41:35,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842150949] [2022-07-21 10:41:35,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:41:35,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-21 10:41:35,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:41:35,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-21 10:41:35,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-07-21 10:41:35,936 INFO L87 Difference]: Start difference. First operand 4880 states and 6572 transitions. Second operand has 16 states, 16 states have (on average 14.5625) internal successors, (233), 9 states have internal predecessors, (233), 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) [2022-07-21 10:41:50,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:41:50,445 INFO L93 Difference]: Finished difference Result 12653 states and 18614 transitions. [2022-07-21 10:41:50,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 10:41:50,446 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.5625) internal successors, (233), 9 states have internal predecessors, (233), 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 520 [2022-07-21 10:41:50,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:41:50,485 INFO L225 Difference]: With dead ends: 12653 [2022-07-21 10:41:50,486 INFO L226 Difference]: Without dead ends: 7776 [2022-07-21 10:41:50,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1222 GetRequests, 1196 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=594, Unknown=0, NotChecked=0, Total=756 [2022-07-21 10:41:50,506 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 1113 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 4268 mSolverCounterSat, 832 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 5100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 4268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-07-21 10:41:50,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 2183 Invalid, 5100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [832 Valid, 4268 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2022-07-21 10:41:50,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7776 states. [2022-07-21 10:41:50,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7776 to 5102. [2022-07-21 10:41:50,842 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) [2022-07-21 10:41:50,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5102 states to 5102 states and 6884 transitions. [2022-07-21 10:41:50,862 INFO L78 Accepts]: Start accepts. Automaton has 5102 states and 6884 transitions. Word has length 520 [2022-07-21 10:41:50,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:41:50,862 INFO L495 AbstractCegarLoop]: Abstraction has 5102 states and 6884 transitions. [2022-07-21 10:41:50,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.5625) internal successors, (233), 9 states have internal predecessors, (233), 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) [2022-07-21 10:41:50,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5102 states and 6884 transitions. [2022-07-21 10:41:50,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2022-07-21 10:41:50,873 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:41:50,873 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] [2022-07-21 10:41:50,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-21 10:41:51,087 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 [2022-07-21 10:41:51,088 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:41:51,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:41:51,088 INFO L85 PathProgramCache]: Analyzing trace with hash 235644442, now seen corresponding path program 1 times [2022-07-21 10:41:51,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:41:51,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731422348] [2022-07-21 10:41:51,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:51,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:41:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:41:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:41:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:41:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:41:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 10:41:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:41:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 10:41:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:41:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 10:41:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:41:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 10:41:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:41:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:41:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 10:41:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:41:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 10:41:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:41:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 10:41:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 10:41:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:41:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:41:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 10:41:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:41:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 10:41:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:41:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 10:41:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-07-21 10:41:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-07-21 10:41:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-07-21 10:41:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:51,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-21 10:41:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:41:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:41:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 10:41:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:41:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 10:41:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:41:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 10:41:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 10:41:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:41:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:41:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:41:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:41:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 10:41:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:41:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 10:41:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:41:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 10:41:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:52,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2247 backedges. 2 proven. 108 refuted. 0 times theorem prover too weak. 2137 trivial. 0 not checked. [2022-07-21 10:41:52,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:41:52,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731422348] [2022-07-21 10:41:52,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731422348] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:41:52,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091954472] [2022-07-21 10:41:52,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:52,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:41:52,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:41:52,318 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) [2022-07-21 10:41:52,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-21 10:41:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:53,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 4992 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 10:41:53,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:41:54,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2247 backedges. 626 proven. 34 refuted. 0 times theorem prover too weak. 1587 trivial. 0 not checked. [2022-07-21 10:41:54,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:41:54,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2247 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 2211 trivial. 0 not checked. [2022-07-21 10:41:54,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091954472] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:41:54,906 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:41:54,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 18 [2022-07-21 10:41:54,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099650640] [2022-07-21 10:41:54,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:41:54,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 10:41:54,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:41:54,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 10:41:54,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-07-21 10:41:54,909 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) [2022-07-21 10:42:11,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:42:11,834 INFO L93 Difference]: Finished difference Result 12353 states and 17642 transitions. [2022-07-21 10:42:11,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-21 10:42:11,835 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 [2022-07-21 10:42:11,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:42:11,876 INFO L225 Difference]: With dead ends: 12353 [2022-07-21 10:42:11,876 INFO L226 Difference]: Without dead ends: 7122 [2022-07-21 10:42:11,900 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 [2022-07-21 10:42:11,901 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 1317 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 6013 mSolverCounterSat, 970 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 2697 SdHoareTripleChecker+Invalid, 6983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 970 IncrementalHoareTripleChecker+Valid, 6013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-07-21 10:42:11,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 2697 Invalid, 6983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [970 Valid, 6013 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2022-07-21 10:42:11,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7122 states. [2022-07-21 10:42:12,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7122 to 5168. [2022-07-21 10:42:12,252 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) [2022-07-21 10:42:12,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 6956 transitions. [2022-07-21 10:42:12,274 INFO L78 Accepts]: Start accepts. Automaton has 5168 states and 6956 transitions. Word has length 621 [2022-07-21 10:42:12,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:42:12,275 INFO L495 AbstractCegarLoop]: Abstraction has 5168 states and 6956 transitions. [2022-07-21 10:42:12,275 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) [2022-07-21 10:42:12,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5168 states and 6956 transitions. [2022-07-21 10:42:12,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2022-07-21 10:42:12,286 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:42:12,287 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, 1, 1] [2022-07-21 10:42:12,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-07-21 10:42:12,503 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 [2022-07-21 10:42:12,504 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:42:12,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:42:12,504 INFO L85 PathProgramCache]: Analyzing trace with hash 750877261, now seen corresponding path program 1 times [2022-07-21 10:42:12,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:42:12,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777847933] [2022-07-21 10:42:12,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:42:12,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:42:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:12,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:12,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:42:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:12,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:42:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:42:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 10:42:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:42:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 10:42:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:42:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 10:42:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:42:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 10:42:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 10:42:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:42:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:42:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 10:42:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:42:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:42:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 10:42:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:42:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:42:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:42:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 10:42:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:42:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 10:42:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:42:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 10:42:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2022-07-21 10:42:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-21 10:42:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-21 10:42:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2022-07-21 10:42:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:42:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:42:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 10:42:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:42:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:42:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 10:42:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:42:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:42:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:42:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 10:42:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:42:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 10:42:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:42:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 10:42:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1974 trivial. 0 not checked. [2022-07-21 10:42:13,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:42:13,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777847933] [2022-07-21 10:42:13,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777847933] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:42:13,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133327642] [2022-07-21 10:42:13,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:42:13,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:42:13,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:42:13,984 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) [2022-07-21 10:42:13,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-21 10:42:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:15,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 5230 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 10:42:15,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:42:15,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 637 proven. 0 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2022-07-21 10:42:15,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:42:15,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133327642] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:42:15,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:42:15,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-07-21 10:42:15,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209130253] [2022-07-21 10:42:15,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:42:15,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 10:42:15,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:42:15,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 10:42:15,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-07-21 10:42:15,764 INFO L87 Difference]: Start difference. First operand 5168 states and 6956 transitions. Second operand has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 5 states have internal predecessors, (181), 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) [2022-07-21 10:42:16,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:42:16,162 INFO L93 Difference]: Finished difference Result 10738 states and 14578 transitions. [2022-07-21 10:42:16,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 10:42:16,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 5 states have internal predecessors, (181), 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 632 [2022-07-21 10:42:16,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:42:16,187 INFO L225 Difference]: With dead ends: 10738 [2022-07-21 10:42:16,187 INFO L226 Difference]: Without dead ends: 5573 [2022-07-21 10:42:16,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 836 GetRequests, 820 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-07-21 10:42:16,203 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 21 mSDsluCounter, 2619 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3280 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:42:16,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 3280 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:42:16,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5573 states. [2022-07-21 10:42:16,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5573 to 5504. [2022-07-21 10:42:16,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5504 states, 4061 states have (on average 1.2765328736764343) internal successors, (5184), 4064 states have internal predecessors, (5184), 1083 states have call successors, (1083), 327 states have call predecessors, (1083), 359 states have return successors, (1163), 1130 states have call predecessors, (1163), 1082 states have call successors, (1163) [2022-07-21 10:42:16,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5504 states to 5504 states and 7430 transitions. [2022-07-21 10:42:16,547 INFO L78 Accepts]: Start accepts. Automaton has 5504 states and 7430 transitions. Word has length 632 [2022-07-21 10:42:16,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:42:16,548 INFO L495 AbstractCegarLoop]: Abstraction has 5504 states and 7430 transitions. [2022-07-21 10:42:16,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 5 states have internal predecessors, (181), 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) [2022-07-21 10:42:16,549 INFO L276 IsEmpty]: Start isEmpty. Operand 5504 states and 7430 transitions. [2022-07-21 10:42:16,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2022-07-21 10:42:16,561 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:42:16,562 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] [2022-07-21 10:42:16,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-07-21 10:42:16,776 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 [2022-07-21 10:42:16,777 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:42:16,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:42:16,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1190478930, now seen corresponding path program 1 times [2022-07-21 10:42:16,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:42:16,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35172396] [2022-07-21 10:42:16,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:42:16,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:42:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:42:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:42:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:42:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 10:42:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:42:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 10:42:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:42:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 10:42:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:42:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 10:42:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 10:42:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:42:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:42:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 10:42:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:42:17,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:42:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 10:42:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:42:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:42:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:42:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 10:42:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:42:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 10:42:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:42:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 10:42:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-21 10:42:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-07-21 10:42:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-07-21 10:42:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-07-21 10:42:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:42:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:42:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 10:42:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:42:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:42:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 10:42:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:42:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:42:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:42:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 10:42:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:42:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 10:42:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:42:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 10:42:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:17,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1974 trivial. 0 not checked. [2022-07-21 10:42:17,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:42:17,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35172396] [2022-07-21 10:42:17,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35172396] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:42:17,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408455701] [2022-07-21 10:42:17,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:42:17,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:42:17,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:42:17,988 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) [2022-07-21 10:42:18,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-21 10:42:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:19,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 5214 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 10:42:19,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:42:19,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 637 proven. 0 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2022-07-21 10:42:19,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:42:19,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408455701] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:42:19,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:42:19,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-07-21 10:42:19,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045288104] [2022-07-21 10:42:19,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:42:19,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 10:42:19,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:42:19,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 10:42:19,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-07-21 10:42:19,885 INFO L87 Difference]: Start difference. First operand 5504 states and 7430 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) [2022-07-21 10:42:20,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:42:20,137 INFO L93 Difference]: Finished difference Result 11047 states and 14965 transitions. [2022-07-21 10:42:20,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 10:42:20,138 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 [2022-07-21 10:42:20,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:42:20,156 INFO L225 Difference]: With dead ends: 11047 [2022-07-21 10:42:20,156 INFO L226 Difference]: Without dead ends: 5540 [2022-07-21 10:42:20,170 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 [2022-07-21 10:42:20,171 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 16 mSDsluCounter, 2601 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3256 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:42:20,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 3256 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:42:20,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5540 states. [2022-07-21 10:42:20,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5540 to 5510. [2022-07-21 10:42:20,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5510 states, 4067 states have (on average 1.276124907794443) internal successors, (5190), 4067 states have internal predecessors, (5190), 1083 states have call successors, (1083), 327 states have call predecessors, (1083), 359 states have return successors, (1160), 1133 states have call predecessors, (1160), 1082 states have call successors, (1160) [2022-07-21 10:42:20,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5510 states to 5510 states and 7433 transitions. [2022-07-21 10:42:20,572 INFO L78 Accepts]: Start accepts. Automaton has 5510 states and 7433 transitions. Word has length 630 [2022-07-21 10:42:20,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:42:20,573 INFO L495 AbstractCegarLoop]: Abstraction has 5510 states and 7433 transitions. [2022-07-21 10:42:20,573 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) [2022-07-21 10:42:20,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5510 states and 7433 transitions. [2022-07-21 10:42:20,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2022-07-21 10:42:20,595 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:42:20,596 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] [2022-07-21 10:42:20,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-07-21 10:42:20,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-07-21 10:42:20,812 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:42:20,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:42:20,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1866619799, now seen corresponding path program 1 times [2022-07-21 10:42:20,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:42:20,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384073308] [2022-07-21 10:42:20,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:42:20,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:42:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:42:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:42:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:42:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 10:42:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:42:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 10:42:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 10:42:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 10:42:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:42:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 10:42:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 10:42:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:42:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:42:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 10:42:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:42:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:42:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 10:42:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:42:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:42:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:42:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 10:42:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:42:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 10:42:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:42:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 10:42:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-21 10:42:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2022-07-21 10:42:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2022-07-21 10:42:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-07-21 10:42:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:42:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:42:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 10:42:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:42:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:42:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 10:42:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:42:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:42:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:42:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 10:42:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:42:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 10:42:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:42:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 10:42:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:21,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1954 trivial. 0 not checked. [2022-07-21 10:42:21,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:42:21,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384073308] [2022-07-21 10:42:21,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384073308] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:42:21,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:42:21,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 10:42:21,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253557890] [2022-07-21 10:42:21,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:42:21,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 10:42:21,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:42:21,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 10:42:21,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 10:42:21,963 INFO L87 Difference]: Start difference. First operand 5510 states and 7433 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) [2022-07-21 10:42:27,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:42:27,537 INFO L93 Difference]: Finished difference Result 12935 states and 18194 transitions. [2022-07-21 10:42:27,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 10:42:27,538 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 [2022-07-21 10:42:27,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:42:27,572 INFO L225 Difference]: With dead ends: 12935 [2022-07-21 10:42:27,572 INFO L226 Difference]: Without dead ends: 7428 [2022-07-21 10:42:27,591 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 [2022-07-21 10:42:27,591 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 1470 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 1192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 2619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1192 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-21 10:42:27,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1291 Invalid, 2619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1192 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-21 10:42:27,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7428 states. [2022-07-21 10:42:27,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7428 to 5462. [2022-07-21 10:42:27,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 4019 states have (on average 1.2659865638218462) internal successors, (5088), 4019 states have internal predecessors, (5088), 1083 states have call successors, (1083), 327 states have call predecessors, (1083), 359 states have return successors, (1160), 1133 states have call predecessors, (1160), 1082 states have call successors, (1160) [2022-07-21 10:42:27,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 7331 transitions. [2022-07-21 10:42:27,921 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 7331 transitions. Word has length 633 [2022-07-21 10:42:27,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:42:27,922 INFO L495 AbstractCegarLoop]: Abstraction has 5462 states and 7331 transitions. [2022-07-21 10:42:27,922 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) [2022-07-21 10:42:27,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 7331 transitions. [2022-07-21 10:42:27,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2022-07-21 10:42:27,933 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:42:27,934 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, 1, 1] [2022-07-21 10:42:27,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-21 10:42:27,934 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:42:27,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:42:27,935 INFO L85 PathProgramCache]: Analyzing trace with hash 593002611, now seen corresponding path program 1 times [2022-07-21 10:42:27,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:42:27,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292159628] [2022-07-21 10:42:27,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:42:27,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:42:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:42:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:42:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:42:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 10:42:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:42:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 10:42:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:42:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:42:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 10:42:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:42:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 10:42:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:42:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:42:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 10:42:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:42:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:42:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 10:42:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:42:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:42:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:42:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 10:42:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:42:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 10:42:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:42:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 10:42:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-21 10:42:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-21 10:42:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2022-07-21 10:42:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-07-21 10:42:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:42:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:42:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 10:42:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:28,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:42:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:42:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 10:42:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:42:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:42:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:42:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 10:42:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:42:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 10:42:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:42:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 10:42:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:29,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2022-07-21 10:42:29,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:42:29,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292159628] [2022-07-21 10:42:29,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292159628] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:42:29,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349418215] [2022-07-21 10:42:29,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:42:29,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:42:29,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:42:29,111 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) [2022-07-21 10:42:29,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-07-21 10:42:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:31,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 5250 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:42:31,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:42:31,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 972 proven. 3 refuted. 0 times theorem prover too weak. 1019 trivial. 0 not checked. [2022-07-21 10:42:31,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:42:32,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 24 proven. 75 refuted. 0 times theorem prover too weak. 1895 trivial. 0 not checked. [2022-07-21 10:42:32,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349418215] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:42:32,185 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:42:32,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 4, 4] total 16 [2022-07-21 10:42:32,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660884458] [2022-07-21 10:42:32,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:42:32,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-21 10:42:32,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:42:32,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-21 10:42:32,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-07-21 10:42:32,188 INFO L87 Difference]: Start difference. First operand 5462 states and 7331 transitions. Second operand has 16 states, 16 states have (on average 17.1875) internal successors, (275), 8 states have internal predecessors, (275), 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) [2022-07-21 10:42:49,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:42:49,558 INFO L93 Difference]: Finished difference Result 14255 states and 20876 transitions. [2022-07-21 10:42:49,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-21 10:42:49,559 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 17.1875) internal successors, (275), 8 states have internal predecessors, (275), 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 637 [2022-07-21 10:42:49,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:42:49,603 INFO L225 Difference]: With dead ends: 14255 [2022-07-21 10:42:49,603 INFO L226 Difference]: Without dead ends: 8544 [2022-07-21 10:42:49,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1503 GetRequests, 1473 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=237, Invalid=755, Unknown=0, NotChecked=0, Total=992 [2022-07-21 10:42:49,630 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 1105 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 4931 mSolverCounterSat, 889 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 5820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 889 IncrementalHoareTripleChecker+Valid, 4931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-07-21 10:42:49,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1131 Valid, 2372 Invalid, 5820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [889 Valid, 4931 Invalid, 0 Unknown, 0 Unchecked, 16.5s Time] [2022-07-21 10:42:49,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8544 states. [2022-07-21 10:42:50,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8544 to 5858. [2022-07-21 10:42:50,147 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) [2022-07-21 10:42:50,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 8015 transitions. [2022-07-21 10:42:50,167 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 8015 transitions. Word has length 637 [2022-07-21 10:42:50,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:42:50,168 INFO L495 AbstractCegarLoop]: Abstraction has 5858 states and 8015 transitions. [2022-07-21 10:42:50,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 17.1875) internal successors, (275), 8 states have internal predecessors, (275), 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) [2022-07-21 10:42:50,168 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 8015 transitions. [2022-07-21 10:42:50,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2022-07-21 10:42:50,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:42:50,183 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] [2022-07-21 10:42:50,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-07-21 10:42:50,399 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 [2022-07-21 10:42:50,400 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:42:50,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:42:50,400 INFO L85 PathProgramCache]: Analyzing trace with hash -870372578, now seen corresponding path program 1 times [2022-07-21 10:42:50,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:42:50,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928595856] [2022-07-21 10:42:50,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:42:50,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:42:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:42:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:42:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:42:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 10:42:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:42:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 10:42:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:42:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:42:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 10:42:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:42:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:50,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 10:42:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:42:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:42:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 10:42:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:42:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:42:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 10:42:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:42:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:42:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:42:51,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 10:42:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:42:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:42:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:42:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 10:42:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 10:42:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-07-21 10:42:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-07-21 10:42:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-07-21 10:42:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-07-21 10:42:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:42:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:42:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 10:42:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 10:42:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:42:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 10:42:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:42:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 10:42:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:42:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:42:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:42:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 10:42:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 10:42:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:42:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:42:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:42:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 10:42:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 10:42:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:51,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2409 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2405 trivial. 0 not checked. [2022-07-21 10:42:51,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:42:51,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928595856] [2022-07-21 10:42:51,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928595856] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:42:51,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337837462] [2022-07-21 10:42:51,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:42:51,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:42:51,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:42:51,780 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) [2022-07-21 10:42:51,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-07-21 10:42:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:54,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 5544 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 10:42:54,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:42:54,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2409 backedges. 1201 proven. 0 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2022-07-21 10:42:54,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:42:54,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337837462] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:42:54,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:42:54,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2022-07-21 10:42:54,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567273123] [2022-07-21 10:42:54,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:42:54,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:42:54,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:42:54,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:42:54,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-07-21 10:42:54,460 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) [2022-07-21 10:42:54,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:42:54,746 INFO L93 Difference]: Finished difference Result 5858 states and 8015 transitions. [2022-07-21 10:42:54,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:42:54,747 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 [2022-07-21 10:42:54,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:42:54,749 INFO L225 Difference]: With dead ends: 5858 [2022-07-21 10:42:54,749 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 10:42:54,759 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 [2022-07-21 10:42:54,760 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 [2022-07-21 10:42:54,760 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] [2022-07-21 10:42:54,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 10:42:54,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 10:42:54,761 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) [2022-07-21 10:42:54,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 10:42:54,762 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 661 [2022-07-21 10:42:54,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:42:54,763 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 10:42:54,763 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) [2022-07-21 10:42:54,764 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 10:42:54,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 10:42:54,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 10:42:54,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2022-07-21 10:42:54,967 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 [2022-07-21 10:42:54,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.