./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--pt.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.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 3b154baf348652a9aadd484f41053a90df6581eb3d7346fd488d4cc05040e74b --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 23:23:04,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 23:23:04,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 23:23:04,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 23:23:04,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 23:23:04,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 23:23:04,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 23:23:04,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 23:23:04,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 23:23:04,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 23:23:04,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 23:23:04,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 23:23:04,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 23:23:04,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 23:23:04,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 23:23:04,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 23:23:04,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 23:23:04,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 23:23:04,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 23:23:04,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 23:23:04,626 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 23:23:04,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 23:23:04,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 23:23:04,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 23:23:04,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 23:23:04,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 23:23:04,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 23:23:04,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 23:23:04,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 23:23:04,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 23:23:04,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 23:23:04,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 23:23:04,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 23:23:04,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 23:23:04,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 23:23:04,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 23:23:04,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 23:23:04,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 23:23:04,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 23:23:04,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 23:23:04,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 23:23:04,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 23:23:04,647 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 23:23:04,678 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 23:23:04,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 23:23:04,679 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 23:23:04,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 23:23:04,680 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 23:23:04,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 23:23:04,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 23:23:04,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 23:23:04,681 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 23:23:04,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 23:23:04,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 23:23:04,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 23:23:04,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 23:23:04,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 23:23:04,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 23:23:04,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 23:23:04,684 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 23:23:04,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 23:23:04,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 23:23:04,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 23:23:04,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 23:23:04,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:23:04,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 23:23:04,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 23:23:04,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 23:23:04,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 23:23:04,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 23:23:04,686 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 23:23:04,686 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 23:23:04,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 23:23:04,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b154baf348652a9aadd484f41053a90df6581eb3d7346fd488d4cc05040e74b [2022-07-22 23:23:04,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 23:23:04,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 23:23:04,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 23:23:04,963 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 23:23:04,967 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 23:23:04,968 INFO L432 ainManager$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--pt.ko-main.cil.out.i [2022-07-22 23:23:05,028 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d161b7fd/89648ac632e84d7bb1aa4fe6ec810c01/FLAGb2ed885ea [2022-07-22 23:23:05,592 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 23:23:05,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2022-07-22 23:23:05,617 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d161b7fd/89648ac632e84d7bb1aa4fe6ec810c01/FLAGb2ed885ea [2022-07-22 23:23:05,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d161b7fd/89648ac632e84d7bb1aa4fe6ec810c01 [2022-07-22 23:23:05,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 23:23:05,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 23:23:05,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 23:23:05,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 23:23:05,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 23:23:05,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:23:05" (1/1) ... [2022-07-22 23:23:05,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c939dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:23:05, skipping insertion in model container [2022-07-22 23:23:05,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:23:05" (1/1) ... [2022-07-22 23:23:05,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 23:23:05,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:23:06,752 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--pt.ko-main.cil.out.i[119285,119298] [2022-07-22 23:23:06,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:23:06,851 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 23:23:07,025 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--pt.ko-main.cil.out.i[119285,119298] [2022-07-22 23:23:07,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:23:07,088 INFO L208 MainTranslator]: Completed translation [2022-07-22 23:23:07,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:23:07 WrapperNode [2022-07-22 23:23:07,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 23:23:07,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 23:23:07,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 23:23:07,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 23:23:07,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:23:07" (1/1) ... [2022-07-22 23:23:07,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:23:07" (1/1) ... [2022-07-22 23:23:07,267 INFO L137 Inliner]: procedures = 144, calls = 800, calls flagged for inlining = 49, calls inlined = 41, statements flattened = 1462 [2022-07-22 23:23:07,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 23:23:07,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 23:23:07,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 23:23:07,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 23:23:07,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:23:07" (1/1) ... [2022-07-22 23:23:07,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:23:07" (1/1) ... [2022-07-22 23:23:07,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:23:07" (1/1) ... [2022-07-22 23:23:07,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:23:07" (1/1) ... [2022-07-22 23:23:07,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:23:07" (1/1) ... [2022-07-22 23:23:07,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:23:07" (1/1) ... [2022-07-22 23:23:07,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:23:07" (1/1) ... [2022-07-22 23:23:07,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 23:23:07,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 23:23:07,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 23:23:07,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 23:23:07,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:23:07" (1/1) ... [2022-07-22 23:23:07,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:23:07,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:23:07,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 23:23:07,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 23:23:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2022-07-22 23:23:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2022-07-22 23:23:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-07-22 23:23:07,476 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-07-22 23:23:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2022-07-22 23:23:07,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2022-07-22 23:23:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pt_mutex [2022-07-22 23:23:07,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pt_mutex [2022-07-22 23:23:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2022-07-22 23:23:07,477 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2022-07-22 23:23:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 23:23:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2022-07-22 23:23:07,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2022-07-22 23:23:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-07-22 23:23:07,477 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-07-22 23:23:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2022-07-22 23:23:07,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2022-07-22 23:23:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-22 23:23:07,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-22 23:23:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2022-07-22 23:23:07,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2022-07-22 23:23:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2022-07-22 23:23:07,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2022-07-22 23:23:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2022-07-22 23:23:07,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2022-07-22 23:23:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 23:23:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-22 23:23:07,479 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-22 23:23:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2022-07-22 23:23:07,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2022-07-22 23:23:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-22 23:23:07,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-22 23:23:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-22 23:23:07,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-22 23:23:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2022-07-22 23:23:07,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2022-07-22 23:23:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 23:23:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2022-07-22 23:23:07,481 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2022-07-22 23:23:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pt_mutex [2022-07-22 23:23:07,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pt_mutex [2022-07-22 23:23:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-22 23:23:07,482 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-22 23:23:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2022-07-22 23:23:07,482 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2022-07-22 23:23:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-22 23:23:07,482 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-22 23:23:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 23:23:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_17 [2022-07-22 23:23:07,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_17 [2022-07-22 23:23:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-22 23:23:07,483 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-22 23:23:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-22 23:23:07,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-22 23:23:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 23:23:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 23:23:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2022-07-22 23:23:07,485 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2022-07-22 23:23:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2022-07-22 23:23:07,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2022-07-22 23:23:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 23:23:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2022-07-22 23:23:07,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2022-07-22 23:23:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2022-07-22 23:23:07,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2022-07-22 23:23:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-07-22 23:23:07,487 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-07-22 23:23:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2022-07-22 23:23:07,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2022-07-22 23:23:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 23:23:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 23:23:07,488 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2022-07-22 23:23:07,488 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2022-07-22 23:23:07,488 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2022-07-22 23:23:07,489 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2022-07-22 23:23:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-22 23:23:07,489 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-22 23:23:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2022-07-22 23:23:07,489 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2022-07-22 23:23:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2022-07-22 23:23:07,489 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2022-07-22 23:23:07,490 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-07-22 23:23:07,490 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-07-22 23:23:07,490 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2022-07-22 23:23:07,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2022-07-22 23:23:07,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 23:23:07,490 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2022-07-22 23:23:07,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2022-07-22 23:23:07,491 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2022-07-22 23:23:07,491 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2022-07-22 23:23:07,491 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-22 23:23:07,492 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-22 23:23:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 23:23:07,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 23:23:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2022-07-22 23:23:07,493 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2022-07-22 23:23:07,822 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 23:23:07,824 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 23:23:14,255 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 23:23:14,275 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 23:23:14,276 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-22 23:23:14,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:23:14 BoogieIcfgContainer [2022-07-22 23:23:14,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 23:23:14,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 23:23:14,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 23:23:14,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 23:23:14,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:23:05" (1/3) ... [2022-07-22 23:23:14,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65fcd74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:23:14, skipping insertion in model container [2022-07-22 23:23:14,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:23:07" (2/3) ... [2022-07-22 23:23:14,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65fcd74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:23:14, skipping insertion in model container [2022-07-22 23:23:14,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:23:14" (3/3) ... [2022-07-22 23:23:14,289 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2022-07-22 23:23:14,302 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 23:23:14,303 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 23:23:14,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 23:23:14,389 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@a590acf, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@569d6849 [2022-07-22 23:23:14,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 23:23:14,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 709 states, 502 states have (on average 1.3924302788844622) internal successors, (699), 524 states have internal predecessors, (699), 167 states have call successors, (167), 42 states have call predecessors, (167), 42 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) [2022-07-22 23:23:14,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-22 23:23:14,414 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:23:14,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:23:14,415 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:23:14,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:23:14,421 INFO L85 PathProgramCache]: Analyzing trace with hash -47262178, now seen corresponding path program 1 times [2022-07-22 23:23:14,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:23:14,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045283808] [2022-07-22 23:23:14,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:14,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:23:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:14,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:23:14,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:23:14,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045283808] [2022-07-22 23:23:14,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045283808] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:23:14,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:23:14,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 23:23:14,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505728433] [2022-07-22 23:23:14,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:23:14,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:23:14,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:23:14,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:23:14,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:23:14,921 INFO L87 Difference]: Start difference. First operand has 709 states, 502 states have (on average 1.3924302788844622) internal successors, (699), 524 states have internal predecessors, (699), 167 states have call successors, (167), 42 states have call predecessors, (167), 42 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2022-07-22 23:23:15,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:23:15,036 INFO L93 Difference]: Finished difference Result 1401 states and 2096 transitions. [2022-07-22 23:23:15,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:23:15,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 19 [2022-07-22 23:23:15,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:23:15,056 INFO L225 Difference]: With dead ends: 1401 [2022-07-22 23:23:15,056 INFO L226 Difference]: Without dead ends: 691 [2022-07-22 23:23:15,069 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 [2022-07-22 23:23:15,072 INFO L413 NwaCegarLoop]: 982 mSDtfsCounter, 973 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 982 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 [2022-07-22 23:23:15,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 982 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:23:15,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2022-07-22 23:23:15,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2022-07-22 23:23:15,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 486 states have (on average 1.3559670781893005) internal successors, (659), 502 states have internal predecessors, (659), 163 states have call successors, (163), 42 states have call predecessors, (163), 41 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2022-07-22 23:23:15,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 979 transitions. [2022-07-22 23:23:15,188 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 979 transitions. Word has length 19 [2022-07-22 23:23:15,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:23:15,190 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 979 transitions. [2022-07-22 23:23:15,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2022-07-22 23:23:15,191 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 979 transitions. [2022-07-22 23:23:15,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-22 23:23:15,197 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:23:15,197 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] [2022-07-22 23:23:15,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 23:23:15,198 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:23:15,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:23:15,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1604484427, now seen corresponding path program 1 times [2022-07-22 23:23:15,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:23:15,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725905230] [2022-07-22 23:23:15,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:15,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:23:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:15,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 23:23:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:15,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:23:15,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:23:15,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725905230] [2022-07-22 23:23:15,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725905230] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:23:15,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:23:15,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:23:15,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710161319] [2022-07-22 23:23:15,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:23:15,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:23:15,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:23:15,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:23:15,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:23:15,335 INFO L87 Difference]: Start difference. First operand 691 states and 979 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 23:23:15,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:23:15,704 INFO L93 Difference]: Finished difference Result 1711 states and 2411 transitions. [2022-07-22 23:23:15,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:23:15,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-07-22 23:23:15,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:23:15,712 INFO L225 Difference]: With dead ends: 1711 [2022-07-22 23:23:15,713 INFO L226 Difference]: Without dead ends: 1023 [2022-07-22 23:23:15,716 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 [2022-07-22 23:23:15,718 INFO L413 NwaCegarLoop]: 1267 mSDtfsCounter, 466 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:23:15,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 2207 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 23:23:15,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2022-07-22 23:23:15,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 995. [2022-07-22 23:23:15,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 702 states have (on average 1.3532763532763532) internal successors, (950), 724 states have internal predecessors, (950), 228 states have call successors, (228), 65 states have call predecessors, (228), 64 states have return successors, (222), 222 states have call predecessors, (222), 222 states have call successors, (222) [2022-07-22 23:23:15,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1400 transitions. [2022-07-22 23:23:15,770 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1400 transitions. Word has length 21 [2022-07-22 23:23:15,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:23:15,770 INFO L495 AbstractCegarLoop]: Abstraction has 995 states and 1400 transitions. [2022-07-22 23:23:15,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 23:23:15,771 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1400 transitions. [2022-07-22 23:23:15,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-22 23:23:15,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:23:15,772 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] [2022-07-22 23:23:15,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 23:23:15,772 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:23:15,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:23:15,773 INFO L85 PathProgramCache]: Analyzing trace with hash 317112764, now seen corresponding path program 1 times [2022-07-22 23:23:15,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:23:15,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336743425] [2022-07-22 23:23:15,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:15,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:23:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:15,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 23:23:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:15,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:23:15,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:23:15,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336743425] [2022-07-22 23:23:15,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336743425] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:23:15,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:23:15,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:23:15,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118222587] [2022-07-22 23:23:15,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:23:15,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:23:15,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:23:15,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:23:15,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:23:15,879 INFO L87 Difference]: Start difference. First operand 995 states and 1400 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-07-22 23:23:20,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:23:22,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:23:23,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:23:23,576 INFO L93 Difference]: Finished difference Result 2555 states and 3603 transitions. [2022-07-22 23:23:23,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:23:23,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 25 [2022-07-22 23:23:23,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:23:23,596 INFO L225 Difference]: With dead ends: 2555 [2022-07-22 23:23:23,596 INFO L226 Difference]: Without dead ends: 1563 [2022-07-22 23:23:23,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:23:23,602 INFO L413 NwaCegarLoop]: 1523 mSDtfsCounter, 1080 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 467 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-22 23:23:23,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 2199 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [467 Valid, 888 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-07-22 23:23:23,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2022-07-22 23:23:23,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1559. [2022-07-22 23:23:23,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1100 states have (on average 1.3536363636363635) internal successors, (1489), 1130 states have internal predecessors, (1489), 357 states have call successors, (357), 102 states have call predecessors, (357), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-22 23:23:23,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2197 transitions. [2022-07-22 23:23:23,707 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2197 transitions. Word has length 25 [2022-07-22 23:23:23,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:23:23,707 INFO L495 AbstractCegarLoop]: Abstraction has 1559 states and 2197 transitions. [2022-07-22 23:23:23,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-07-22 23:23:23,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2197 transitions. [2022-07-22 23:23:23,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-22 23:23:23,708 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:23:23,709 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] [2022-07-22 23:23:23,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 23:23:23,709 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:23:23,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:23:23,710 INFO L85 PathProgramCache]: Analyzing trace with hash -781514518, now seen corresponding path program 1 times [2022-07-22 23:23:23,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:23:23,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184167777] [2022-07-22 23:23:23,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:23,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:23:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:23,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:23:23,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:23:23,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184167777] [2022-07-22 23:23:23,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184167777] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:23:23,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:23:23,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:23:23,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585751476] [2022-07-22 23:23:23,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:23:23,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:23:23,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:23:23,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:23:23,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:23:23,800 INFO L87 Difference]: Start difference. First operand 1559 states and 2197 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-07-22 23:23:23,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:23:23,940 INFO L93 Difference]: Finished difference Result 3141 states and 4431 transitions. [2022-07-22 23:23:23,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:23:23,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 24 [2022-07-22 23:23:23,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:23:23,951 INFO L225 Difference]: With dead ends: 3141 [2022-07-22 23:23:23,952 INFO L226 Difference]: Without dead ends: 1585 [2022-07-22 23:23:23,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:23:23,960 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 12 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:23:23,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1949 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:23:23,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2022-07-22 23:23:24,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1561. [2022-07-22 23:23:24,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1102 states have (on average 1.352994555353902) internal successors, (1491), 1132 states have internal predecessors, (1491), 357 states have call successors, (357), 102 states have call predecessors, (357), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-22 23:23:24,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2199 transitions. [2022-07-22 23:23:24,026 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2199 transitions. Word has length 24 [2022-07-22 23:23:24,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:23:24,026 INFO L495 AbstractCegarLoop]: Abstraction has 1561 states and 2199 transitions. [2022-07-22 23:23:24,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-07-22 23:23:24,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2199 transitions. [2022-07-22 23:23:24,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-22 23:23:24,028 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:23:24,028 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] [2022-07-22 23:23:24,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 23:23:24,028 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:23:24,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:23:24,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1053558324, now seen corresponding path program 1 times [2022-07-22 23:23:24,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:23:24,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552572102] [2022-07-22 23:23:24,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:24,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:23:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:24,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 23:23:24,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:23:24,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552572102] [2022-07-22 23:23:24,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552572102] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:23:24,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:23:24,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:23:24,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84957765] [2022-07-22 23:23:24,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:23:24,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:23:24,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:23:24,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:23:24,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:23:24,135 INFO L87 Difference]: Start difference. First operand 1561 states and 2199 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) [2022-07-22 23:23:24,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:23:24,211 INFO L93 Difference]: Finished difference Result 3572 states and 5113 transitions. [2022-07-22 23:23:24,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:23:24,211 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 [2022-07-22 23:23:24,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:23:24,225 INFO L225 Difference]: With dead ends: 3572 [2022-07-22 23:23:24,226 INFO L226 Difference]: Without dead ends: 2014 [2022-07-22 23:23:24,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:23:24,234 INFO L413 NwaCegarLoop]: 1341 mSDtfsCounter, 259 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2364 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:23:24,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 2364 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:23:24,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2022-07-22 23:23:24,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1573. [2022-07-22 23:23:24,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1114 states have (on average 1.35278276481149) internal successors, (1507), 1144 states have internal predecessors, (1507), 357 states have call successors, (357), 102 states have call predecessors, (357), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-22 23:23:24,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2215 transitions. [2022-07-22 23:23:24,310 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2215 transitions. Word has length 29 [2022-07-22 23:23:24,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:23:24,310 INFO L495 AbstractCegarLoop]: Abstraction has 1573 states and 2215 transitions. [2022-07-22 23:23:24,310 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) [2022-07-22 23:23:24,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2215 transitions. [2022-07-22 23:23:24,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-22 23:23:24,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:23:24,311 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] [2022-07-22 23:23:24,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 23:23:24,312 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:23:24,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:23:24,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1747046649, now seen corresponding path program 1 times [2022-07-22 23:23:24,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:23:24,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678148986] [2022-07-22 23:23:24,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:24,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:23:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:24,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:23:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:24,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:23:24,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:23:24,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678148986] [2022-07-22 23:23:24,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678148986] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:23:24,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490061852] [2022-07-22 23:23:24,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:24,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:23:24,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:23:24,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:23:24,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 23:23:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:24,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:23:24,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:23:24,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 23:23:24,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:23:24,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490061852] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:23:24,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:23:24,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-22 23:23:24,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541818615] [2022-07-22 23:23:24,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:23:24,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:23:24,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:23:24,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:23:24,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:23:24,792 INFO L87 Difference]: Start difference. First operand 1573 states and 2215 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-07-22 23:23:24,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:23:24,918 INFO L93 Difference]: Finished difference Result 1595 states and 2241 transitions. [2022-07-22 23:23:24,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:23:24,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 35 [2022-07-22 23:23:24,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:23:24,934 INFO L225 Difference]: With dead ends: 1595 [2022-07-22 23:23:24,934 INFO L226 Difference]: Without dead ends: 1584 [2022-07-22 23:23:24,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:23:24,944 INFO L413 NwaCegarLoop]: 991 mSDtfsCounter, 974 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 1004 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 [2022-07-22 23:23:24,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 1004 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:23:24,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2022-07-22 23:23:25,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1573. [2022-07-22 23:23:25,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1114 states have (on average 1.3509874326750448) internal successors, (1505), 1144 states have internal predecessors, (1505), 357 states have call successors, (357), 102 states have call predecessors, (357), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-22 23:23:25,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2213 transitions. [2022-07-22 23:23:25,022 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2213 transitions. Word has length 35 [2022-07-22 23:23:25,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:23:25,024 INFO L495 AbstractCegarLoop]: Abstraction has 1573 states and 2213 transitions. [2022-07-22 23:23:25,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-07-22 23:23:25,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2213 transitions. [2022-07-22 23:23:25,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-22 23:23:25,026 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:23:25,026 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] [2022-07-22 23:23:25,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 23:23:25,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-22 23:23:25,250 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:23:25,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:23:25,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1804304951, now seen corresponding path program 1 times [2022-07-22 23:23:25,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:23:25,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206647870] [2022-07-22 23:23:25,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:25,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:23:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:25,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:23:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:25,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:23:25,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:23:25,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206647870] [2022-07-22 23:23:25,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206647870] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:23:25,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050592117] [2022-07-22 23:23:25,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:25,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:23:25,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:23:25,349 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:23:25,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 23:23:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:25,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:23:25,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:23:25,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 23:23:25,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:23:25,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050592117] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:23:25,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:23:25,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-22 23:23:25,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451676463] [2022-07-22 23:23:25,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:23:25,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:23:25,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:23:25,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:23:25,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:23:25,772 INFO L87 Difference]: Start difference. First operand 1573 states and 2213 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-07-22 23:23:25,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:23:25,833 INFO L93 Difference]: Finished difference Result 1575 states and 2214 transitions. [2022-07-22 23:23:25,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:23:25,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 35 [2022-07-22 23:23:25,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:23:25,845 INFO L225 Difference]: With dead ends: 1575 [2022-07-22 23:23:25,846 INFO L226 Difference]: Without dead ends: 1572 [2022-07-22 23:23:25,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:23:25,848 INFO L413 NwaCegarLoop]: 976 mSDtfsCounter, 945 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 976 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 [2022-07-22 23:23:25,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 976 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:23:25,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2022-07-22 23:23:25,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1572. [2022-07-22 23:23:25,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1114 states have (on average 1.3500897666068223) internal successors, (1504), 1143 states have internal predecessors, (1504), 356 states have call successors, (356), 102 states have call predecessors, (356), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-22 23:23:25,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2211 transitions. [2022-07-22 23:23:25,950 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2211 transitions. Word has length 35 [2022-07-22 23:23:25,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:23:25,950 INFO L495 AbstractCegarLoop]: Abstraction has 1572 states and 2211 transitions. [2022-07-22 23:23:25,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-07-22 23:23:25,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2211 transitions. [2022-07-22 23:23:25,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-22 23:23:25,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:23:25,952 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] [2022-07-22 23:23:25,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 23:23:26,177 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,SelfDestructingSolverStorable6 [2022-07-22 23:23:26,177 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:23:26,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:23:26,178 INFO L85 PathProgramCache]: Analyzing trace with hash 98495690, now seen corresponding path program 1 times [2022-07-22 23:23:26,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:23:26,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714289823] [2022-07-22 23:23:26,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:26,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:23:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:26,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:23:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:26,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:23:26,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:23:26,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714289823] [2022-07-22 23:23:26,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714289823] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:23:26,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613732623] [2022-07-22 23:23:26,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:26,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:23:26,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:23:26,300 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:23:26,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 23:23:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:26,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:23:26,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:23:26,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 23:23:26,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:23:26,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613732623] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:23:26,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:23:26,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-22 23:23:26,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110936871] [2022-07-22 23:23:26,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:23:26,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:23:26,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:23:26,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:23:26,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:23:26,713 INFO L87 Difference]: Start difference. First operand 1572 states and 2211 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2022-07-22 23:23:26,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:23:26,774 INFO L93 Difference]: Finished difference Result 1574 states and 2212 transitions. [2022-07-22 23:23:26,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:23:26,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 36 [2022-07-22 23:23:26,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:23:26,785 INFO L225 Difference]: With dead ends: 1574 [2022-07-22 23:23:26,785 INFO L226 Difference]: Without dead ends: 1571 [2022-07-22 23:23:26,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:23:26,787 INFO L413 NwaCegarLoop]: 974 mSDtfsCounter, 942 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 974 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 [2022-07-22 23:23:26,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 974 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:23:26,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2022-07-22 23:23:26,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1571. [2022-07-22 23:23:26,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1114 states have (on average 1.3491921005385996) internal successors, (1503), 1142 states have internal predecessors, (1503), 355 states have call successors, (355), 102 states have call predecessors, (355), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-22 23:23:26,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2209 transitions. [2022-07-22 23:23:26,854 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2209 transitions. Word has length 36 [2022-07-22 23:23:26,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:23:26,854 INFO L495 AbstractCegarLoop]: Abstraction has 1571 states and 2209 transitions. [2022-07-22 23:23:26,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2022-07-22 23:23:26,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2209 transitions. [2022-07-22 23:23:26,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 23:23:26,856 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:23:26,856 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] [2022-07-22 23:23:26,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 23:23:27,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:23:27,077 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:23:27,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:23:27,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1241978982, now seen corresponding path program 1 times [2022-07-22 23:23:27,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:23:27,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468681111] [2022-07-22 23:23:27,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:27,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:23:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:27,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:23:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:27,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:23:27,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:23:27,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468681111] [2022-07-22 23:23:27,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468681111] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:23:27,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810559115] [2022-07-22 23:23:27,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:27,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:23:27,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:23:27,205 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:23:27,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 23:23:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:27,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:23:27,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:23:27,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 23:23:27,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:23:27,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810559115] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:23:27,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:23:27,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-22 23:23:27,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396180999] [2022-07-22 23:23:27,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:23:27,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:23:27,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:23:27,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:23:27,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:23:27,652 INFO L87 Difference]: Start difference. First operand 1571 states and 2209 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2022-07-22 23:23:27,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:23:27,714 INFO L93 Difference]: Finished difference Result 1573 states and 2210 transitions. [2022-07-22 23:23:27,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:23:27,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 37 [2022-07-22 23:23:27,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:23:27,724 INFO L225 Difference]: With dead ends: 1573 [2022-07-22 23:23:27,725 INFO L226 Difference]: Without dead ends: 1570 [2022-07-22 23:23:27,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:23:27,728 INFO L413 NwaCegarLoop]: 972 mSDtfsCounter, 939 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 972 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 [2022-07-22 23:23:27,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 972 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:23:27,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-07-22 23:23:27,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1570. [2022-07-22 23:23:27,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1114 states have (on average 1.3482944344703771) internal successors, (1502), 1141 states have internal predecessors, (1502), 354 states have call successors, (354), 102 states have call predecessors, (354), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-22 23:23:27,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 2207 transitions. [2022-07-22 23:23:27,799 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 2207 transitions. Word has length 37 [2022-07-22 23:23:27,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:23:27,800 INFO L495 AbstractCegarLoop]: Abstraction has 1570 states and 2207 transitions. [2022-07-22 23:23:27,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2022-07-22 23:23:27,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 2207 transitions. [2022-07-22 23:23:27,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-22 23:23:27,801 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:23:27,801 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] [2022-07-22 23:23:27,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 23:23:28,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:23:28,020 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:23:28,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:23:28,020 INFO L85 PathProgramCache]: Analyzing trace with hash 152984013, now seen corresponding path program 1 times [2022-07-22 23:23:28,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:23:28,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729764404] [2022-07-22 23:23:28,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:28,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:23:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:28,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:23:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:28,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:23:28,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:23:28,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729764404] [2022-07-22 23:23:28,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729764404] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:23:28,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226553849] [2022-07-22 23:23:28,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:28,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:23:28,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:23:28,140 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:23:28,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 23:23:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:28,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:23:28,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:23:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 23:23:28,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:23:28,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226553849] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:23:28,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:23:28,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-22 23:23:28,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105213702] [2022-07-22 23:23:28,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:23:28,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:23:28,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:23:28,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:23:28,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:23:28,563 INFO L87 Difference]: Start difference. First operand 1570 states and 2207 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-07-22 23:23:28,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:23:28,648 INFO L93 Difference]: Finished difference Result 2023 states and 2795 transitions. [2022-07-22 23:23:28,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:23:28,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 38 [2022-07-22 23:23:28,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:23:28,662 INFO L225 Difference]: With dead ends: 2023 [2022-07-22 23:23:28,662 INFO L226 Difference]: Without dead ends: 1986 [2022-07-22 23:23:28,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:23:28,664 INFO L413 NwaCegarLoop]: 1104 mSDtfsCounter, 869 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 1505 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 [2022-07-22 23:23:28,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 1505 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:23:28,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2022-07-22 23:23:28,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1986. [2022-07-22 23:23:28,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1986 states, 1382 states have (on average 1.3277858176555717) internal successors, (1835), 1417 states have internal predecessors, (1835), 457 states have call successors, (457), 147 states have call predecessors, (457), 146 states have return successors, (456), 456 states have call predecessors, (456), 456 states have call successors, (456) [2022-07-22 23:23:28,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2748 transitions. [2022-07-22 23:23:28,748 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2748 transitions. Word has length 38 [2022-07-22 23:23:28,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:23:28,749 INFO L495 AbstractCegarLoop]: Abstraction has 1986 states and 2748 transitions. [2022-07-22 23:23:28,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-07-22 23:23:28,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2748 transitions. [2022-07-22 23:23:28,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-22 23:23:28,752 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:23:28,752 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] [2022-07-22 23:23:28,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 23:23:28,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-22 23:23:28,976 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:23:28,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:23:28,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1358020866, now seen corresponding path program 1 times [2022-07-22 23:23:28,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:23:28,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048754533] [2022-07-22 23:23:28,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:28,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:23:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:29,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:23:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:29,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-22 23:23:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:29,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-22 23:23:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:29,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 23:23:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:29,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:23:29,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:23:29,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048754533] [2022-07-22 23:23:29,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048754533] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:23:29,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417434252] [2022-07-22 23:23:29,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:29,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:23:29,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:23:29,081 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:23:29,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 23:23:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:29,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 1276 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:23:29,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:23:29,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 23:23:29,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:23:29,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417434252] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:23:29,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:23:29,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-07-22 23:23:29,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912024832] [2022-07-22 23:23:29,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:23:29,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:23:29,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:23:29,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:23:29,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:23:29,519 INFO L87 Difference]: Start difference. First operand 1986 states and 2748 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-07-22 23:23:29,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:23:29,617 INFO L93 Difference]: Finished difference Result 3979 states and 5508 transitions. [2022-07-22 23:23:29,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:23:29,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 67 [2022-07-22 23:23:29,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:23:29,630 INFO L225 Difference]: With dead ends: 3979 [2022-07-22 23:23:29,630 INFO L226 Difference]: Without dead ends: 1996 [2022-07-22 23:23:29,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:23:29,640 INFO L413 NwaCegarLoop]: 930 mSDtfsCounter, 9 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:23:29,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1854 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:23:29,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2022-07-22 23:23:29,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1988. [2022-07-22 23:23:29,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1384 states have (on average 1.3273121387283238) internal successors, (1837), 1419 states have internal predecessors, (1837), 457 states have call successors, (457), 147 states have call predecessors, (457), 146 states have return successors, (456), 456 states have call predecessors, (456), 456 states have call successors, (456) [2022-07-22 23:23:29,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2750 transitions. [2022-07-22 23:23:29,726 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2750 transitions. Word has length 67 [2022-07-22 23:23:29,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:23:29,727 INFO L495 AbstractCegarLoop]: Abstraction has 1988 states and 2750 transitions. [2022-07-22 23:23:29,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-07-22 23:23:29,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2750 transitions. [2022-07-22 23:23:29,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-22 23:23:29,730 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:23:29,730 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] [2022-07-22 23:23:29,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 23:23:29,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:23:29,951 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:23:29,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:23:29,952 INFO L85 PathProgramCache]: Analyzing trace with hash -192002445, now seen corresponding path program 1 times [2022-07-22 23:23:29,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:23:29,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182937618] [2022-07-22 23:23:29,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:29,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:23:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:30,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:23:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:30,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 23:23:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:30,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-22 23:23:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:30,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-22 23:23:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:30,084 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 23:23:30,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:23:30,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182937618] [2022-07-22 23:23:30,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182937618] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:23:30,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833373382] [2022-07-22 23:23:30,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:30,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:23:30,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:23:30,087 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:23:30,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 23:23:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:30,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 1283 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:23:30,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:23:30,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 23:23:30,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:23:30,564 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 23:23:30,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833373382] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 23:23:30,565 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 23:23:30,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-07-22 23:23:30,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207464850] [2022-07-22 23:23:30,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 23:23:30,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 23:23:30,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:23:30,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 23:23:30,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-22 23:23:30,567 INFO L87 Difference]: Start difference. First operand 1988 states and 2750 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-22 23:23:34,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:23:36,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:23:39,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:23:40,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:23:40,516 INFO L93 Difference]: Finished difference Result 4075 states and 5651 transitions. [2022-07-22 23:23:40,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 23:23:40,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 71 [2022-07-22 23:23:40,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:23:40,530 INFO L225 Difference]: With dead ends: 4075 [2022-07-22 23:23:40,531 INFO L226 Difference]: Without dead ends: 2090 [2022-07-22 23:23:40,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-22 23:23:40,541 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 448 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 177 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 1603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-07-22 23:23:40,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 1739 Invalid, 1603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1423 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2022-07-22 23:23:40,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2022-07-22 23:23:40,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 2090. [2022-07-22 23:23:40,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2090 states, 1468 states have (on average 1.3235694822888284) internal successors, (1943), 1503 states have internal predecessors, (1943), 475 states have call successors, (475), 147 states have call predecessors, (475), 146 states have return successors, (474), 474 states have call predecessors, (474), 474 states have call successors, (474) [2022-07-22 23:23:40,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 2892 transitions. [2022-07-22 23:23:40,664 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 2892 transitions. Word has length 71 [2022-07-22 23:23:40,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:23:40,666 INFO L495 AbstractCegarLoop]: Abstraction has 2090 states and 2892 transitions. [2022-07-22 23:23:40,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-22 23:23:40,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 2892 transitions. [2022-07-22 23:23:40,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-22 23:23:40,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:23:40,669 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:23:40,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-22 23:23:40,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:23:40,896 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:23:40,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:23:40,896 INFO L85 PathProgramCache]: Analyzing trace with hash -830434775, now seen corresponding path program 2 times [2022-07-22 23:23:40,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:23:40,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640168609] [2022-07-22 23:23:40,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:40,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:23:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:41,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:23:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:41,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 23:23:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:41,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 23:23:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:41,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-22 23:23:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:41,086 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-22 23:23:41,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:23:41,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640168609] [2022-07-22 23:23:41,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640168609] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:23:41,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:23:41,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 23:23:41,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116264707] [2022-07-22 23:23:41,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:23:41,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:23:41,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:23:41,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:23:41,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:23:41,089 INFO L87 Difference]: Start difference. First operand 2090 states and 2892 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 23:23:44,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:23:46,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:23:49,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:23:49,983 INFO L93 Difference]: Finished difference Result 4567 states and 6401 transitions. [2022-07-22 23:23:49,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:23:49,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2022-07-22 23:23:49,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:23:49,998 INFO L225 Difference]: With dead ends: 4567 [2022-07-22 23:23:49,998 INFO L226 Difference]: Without dead ends: 2480 [2022-07-22 23:23:50,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:23:50,008 INFO L413 NwaCegarLoop]: 1108 mSDtfsCounter, 764 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 249 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 1680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-07-22 23:23:50,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 2281 Invalid, 1680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 1429 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2022-07-22 23:23:50,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2022-07-22 23:23:50,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2094. [2022-07-22 23:23:50,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2094 states, 1472 states have (on average 1.3226902173913044) internal successors, (1947), 1507 states have internal predecessors, (1947), 475 states have call successors, (475), 147 states have call predecessors, (475), 146 states have return successors, (474), 474 states have call predecessors, (474), 474 states have call successors, (474) [2022-07-22 23:23:50,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2094 states to 2094 states and 2896 transitions. [2022-07-22 23:23:50,113 INFO L78 Accepts]: Start accepts. Automaton has 2094 states and 2896 transitions. Word has length 86 [2022-07-22 23:23:50,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:23:50,114 INFO L495 AbstractCegarLoop]: Abstraction has 2094 states and 2896 transitions. [2022-07-22 23:23:50,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 23:23:50,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2094 states and 2896 transitions. [2022-07-22 23:23:50,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-22 23:23:50,117 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:23:50,117 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:23:50,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 23:23:50,117 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:23:50,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:23:50,118 INFO L85 PathProgramCache]: Analyzing trace with hash -477346393, now seen corresponding path program 1 times [2022-07-22 23:23:50,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:23:50,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222768033] [2022-07-22 23:23:50,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:50,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:23:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:50,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:23:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:50,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 23:23:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:50,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 23:23:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:50,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-22 23:23:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:50,268 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-22 23:23:50,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:23:50,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222768033] [2022-07-22 23:23:50,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222768033] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:23:50,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:23:50,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:23:50,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57771317] [2022-07-22 23:23:50,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:23:50,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:23:50,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:23:50,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:23:50,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:23:50,270 INFO L87 Difference]: Start difference. First operand 2094 states and 2896 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 23:23:53,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:23:55,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:23:55,591 INFO L93 Difference]: Finished difference Result 4673 states and 6557 transitions. [2022-07-22 23:23:55,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 23:23:55,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2022-07-22 23:23:55,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:23:55,608 INFO L225 Difference]: With dead ends: 4673 [2022-07-22 23:23:55,608 INFO L226 Difference]: Without dead ends: 2582 [2022-07-22 23:23:55,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:23:55,619 INFO L413 NwaCegarLoop]: 1118 mSDtfsCounter, 583 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 161 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:23:55,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 1932 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 818 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-07-22 23:23:55,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2582 states. [2022-07-22 23:23:55,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2582 to 2196. [2022-07-22 23:23:55,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 1550 states have (on average 1.323225806451613) internal successors, (2051), 1585 states have internal predecessors, (2051), 499 states have call successors, (499), 147 states have call predecessors, (499), 146 states have return successors, (498), 498 states have call predecessors, (498), 498 states have call successors, (498) [2022-07-22 23:23:55,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 3048 transitions. [2022-07-22 23:23:55,736 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 3048 transitions. Word has length 86 [2022-07-22 23:23:55,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:23:55,737 INFO L495 AbstractCegarLoop]: Abstraction has 2196 states and 3048 transitions. [2022-07-22 23:23:55,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 23:23:55,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 3048 transitions. [2022-07-22 23:23:55,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 23:23:55,741 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:23:55,742 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2022-07-22 23:23:55,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-22 23:23:55,742 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:23:55,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:23:55,744 INFO L85 PathProgramCache]: Analyzing trace with hash -113690984, now seen corresponding path program 1 times [2022-07-22 23:23:55,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:23:55,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200303333] [2022-07-22 23:23:55,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:23:55,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:23:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:55,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:23:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:55,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 23:23:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:55,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-22 23:23:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:55,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 23:23:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:55,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 23:23:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:23:56,002 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-22 23:23:56,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:23:56,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200303333] [2022-07-22 23:23:56,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200303333] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:23:56,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:23:56,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 23:23:56,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156499310] [2022-07-22 23:23:56,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:23:56,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 23:23:56,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:23:56,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 23:23:56,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:23:56,005 INFO L87 Difference]: Start difference. First operand 2196 states and 3048 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 23:24:03,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:24:09,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:24:09,105 INFO L93 Difference]: Finished difference Result 5230 states and 7492 transitions. [2022-07-22 23:24:09,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 23:24:09,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 96 [2022-07-22 23:24:09,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:24:09,128 INFO L225 Difference]: With dead ends: 5230 [2022-07-22 23:24:09,129 INFO L226 Difference]: Without dead ends: 3037 [2022-07-22 23:24:09,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 23:24:09,138 INFO L413 NwaCegarLoop]: 1153 mSDtfsCounter, 840 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 2922 mSolverCounterSat, 472 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 3519 SdHoareTripleChecker+Invalid, 3395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 472 IncrementalHoareTripleChecker+Valid, 2922 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-07-22 23:24:09,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 3519 Invalid, 3395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [472 Valid, 2922 Invalid, 1 Unknown, 0 Unchecked, 12.8s Time] [2022-07-22 23:24:09,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2022-07-22 23:24:09,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 2208. [2022-07-22 23:24:09,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 1560 states have (on average 1.3211538461538461) internal successors, (2061), 1593 states have internal predecessors, (2061), 499 states have call successors, (499), 147 states have call predecessors, (499), 148 states have return successors, (516), 502 states have call predecessors, (516), 498 states have call successors, (516) [2022-07-22 23:24:09,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 3076 transitions. [2022-07-22 23:24:09,277 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 3076 transitions. Word has length 96 [2022-07-22 23:24:09,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:24:09,278 INFO L495 AbstractCegarLoop]: Abstraction has 2208 states and 3076 transitions. [2022-07-22 23:24:09,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 23:24:09,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 3076 transitions. [2022-07-22 23:24:09,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 23:24:09,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:24:09,283 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 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] [2022-07-22 23:24:09,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-22 23:24:09,283 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:24:09,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:24:09,284 INFO L85 PathProgramCache]: Analyzing trace with hash -140112062, now seen corresponding path program 1 times [2022-07-22 23:24:09,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:24:09,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318819800] [2022-07-22 23:24:09,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:24:09,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:24:09,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:09,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-22 23:24:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:09,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 23:24:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:09,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-22 23:24:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:09,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 23:24:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:09,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 23:24:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:09,515 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-22 23:24:09,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:24:09,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318819800] [2022-07-22 23:24:09,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318819800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:24:09,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:24:09,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 23:24:09,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996175562] [2022-07-22 23:24:09,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:24:09,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 23:24:09,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:24:09,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 23:24:09,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:24:09,519 INFO L87 Difference]: Start difference. First operand 2208 states and 3076 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 23:24:12,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:24:19,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:24:22,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:24:24,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:24:24,232 INFO L93 Difference]: Finished difference Result 5452 states and 7832 transitions. [2022-07-22 23:24:24,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 23:24:24,233 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 96 [2022-07-22 23:24:24,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:24:24,250 INFO L225 Difference]: With dead ends: 5452 [2022-07-22 23:24:24,250 INFO L226 Difference]: Without dead ends: 3247 [2022-07-22 23:24:24,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:24:24,259 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 870 mSDsluCounter, 2150 mSDsCounter, 0 mSdLazyCounter, 2915 mSolverCounterSat, 516 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 3237 SdHoareTripleChecker+Invalid, 3433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 2915 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-07-22 23:24:24,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 3237 Invalid, 3433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 2915 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2022-07-22 23:24:24,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2022-07-22 23:24:24,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 2236. [2022-07-22 23:24:24,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 1588 states have (on average 1.3154911838790933) internal successors, (2089), 1607 states have internal predecessors, (2089), 499 states have call successors, (499), 147 states have call predecessors, (499), 148 states have return successors, (516), 516 states have call predecessors, (516), 498 states have call successors, (516) [2022-07-22 23:24:24,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 3104 transitions. [2022-07-22 23:24:24,419 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 3104 transitions. Word has length 96 [2022-07-22 23:24:24,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:24:24,419 INFO L495 AbstractCegarLoop]: Abstraction has 2236 states and 3104 transitions. [2022-07-22 23:24:24,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 23:24:24,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 3104 transitions. [2022-07-22 23:24:24,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-22 23:24:24,426 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:24:24,426 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:24:24,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-22 23:24:24,427 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:24:24,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:24:24,427 INFO L85 PathProgramCache]: Analyzing trace with hash 2093842028, now seen corresponding path program 1 times [2022-07-22 23:24:24,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:24:24,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871719754] [2022-07-22 23:24:24,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:24:24,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:24:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:24:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 23:24:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:24:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:24:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:24:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:24:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:24:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:24:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 23:24:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-22 23:24:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:24:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:24:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:24:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:24:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:24:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:24:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:24,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:24:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:25,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:24:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:25,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:24:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:25,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-22 23:24:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:25,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-22 23:24:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:25,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-22 23:24:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:25,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-22 23:24:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:25,063 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-07-22 23:24:25,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:24:25,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871719754] [2022-07-22 23:24:25,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871719754] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:24:25,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:24:25,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 23:24:25,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991226442] [2022-07-22 23:24:25,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:24:25,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 23:24:25,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:24:25,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 23:24:25,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:24:25,066 INFO L87 Difference]: Start difference. First operand 2236 states and 3104 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-22 23:24:27,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:24:35,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:24:38,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:24:40,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:24:43,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:24:43,969 INFO L93 Difference]: Finished difference Result 5302 states and 7672 transitions. [2022-07-22 23:24:43,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 23:24:43,970 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 194 [2022-07-22 23:24:43,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:24:43,982 INFO L225 Difference]: With dead ends: 5302 [2022-07-22 23:24:43,982 INFO L226 Difference]: Without dead ends: 3069 [2022-07-22 23:24:43,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-07-22 23:24:43,990 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 1381 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 3570 mSolverCounterSat, 1191 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 2572 SdHoareTripleChecker+Invalid, 4764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1191 IncrementalHoareTripleChecker+Valid, 3570 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2022-07-22 23:24:43,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 2572 Invalid, 4764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1191 Valid, 3570 Invalid, 3 Unknown, 0 Unchecked, 18.6s Time] [2022-07-22 23:24:43,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2022-07-22 23:24:44,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 2240. [2022-07-22 23:24:44,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2240 states, 1592 states have (on average 1.3146984924623115) internal successors, (2093), 1609 states have internal predecessors, (2093), 499 states have call successors, (499), 147 states have call predecessors, (499), 148 states have return successors, (516), 516 states have call predecessors, (516), 498 states have call successors, (516) [2022-07-22 23:24:44,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 3108 transitions. [2022-07-22 23:24:44,129 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 3108 transitions. Word has length 194 [2022-07-22 23:24:44,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:24:44,129 INFO L495 AbstractCegarLoop]: Abstraction has 2240 states and 3108 transitions. [2022-07-22 23:24:44,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-22 23:24:44,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 3108 transitions. [2022-07-22 23:24:44,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-07-22 23:24:44,134 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:24:44,134 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:24:44,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-22 23:24:44,135 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:24:44,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:24:44,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1536816957, now seen corresponding path program 1 times [2022-07-22 23:24:44,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:24:44,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627858588] [2022-07-22 23:24:44,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:24:44,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:24:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:24:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 23:24:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:24:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:24:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:24:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:24:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:24:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:24:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:24:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:24:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-22 23:24:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 23:24:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:24:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:24:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:24:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:24:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:24:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:24:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:24:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:24:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:24:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-22 23:24:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-22 23:24:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-22 23:24:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-22 23:24:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:24:44,830 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-07-22 23:24:44,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:24:44,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627858588] [2022-07-22 23:24:44,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627858588] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:24:44,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:24:44,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 23:24:44,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14825190] [2022-07-22 23:24:44,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:24:44,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 23:24:44,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:24:44,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 23:24:44,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-22 23:24:44,834 INFO L87 Difference]: Start difference. First operand 2240 states and 3108 transitions. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (26), 8 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-22 23:24:47,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:24:57,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:24:59,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:25:02,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:25:04,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:25:04,628 INFO L93 Difference]: Finished difference Result 5280 states and 7634 transitions. [2022-07-22 23:25:04,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 23:25:04,629 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (26), 8 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 205 [2022-07-22 23:25:04,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:25:04,644 INFO L225 Difference]: With dead ends: 5280 [2022-07-22 23:25:04,644 INFO L226 Difference]: Without dead ends: 3043 [2022-07-22 23:25:04,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-07-22 23:25:04,653 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 946 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 2509 mSolverCounterSat, 697 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 3210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 697 IncrementalHoareTripleChecker+Valid, 2509 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-07-22 23:25:04,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 2073 Invalid, 3210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [697 Valid, 2509 Invalid, 4 Unknown, 0 Unchecked, 19.4s Time] [2022-07-22 23:25:04,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2022-07-22 23:25:04,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 2244. [2022-07-22 23:25:04,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2244 states, 1596 states have (on average 1.3139097744360901) internal successors, (2097), 1613 states have internal predecessors, (2097), 499 states have call successors, (499), 147 states have call predecessors, (499), 148 states have return successors, (516), 516 states have call predecessors, (516), 498 states have call successors, (516) [2022-07-22 23:25:04,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3112 transitions. [2022-07-22 23:25:04,838 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3112 transitions. Word has length 205 [2022-07-22 23:25:04,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:25:04,838 INFO L495 AbstractCegarLoop]: Abstraction has 2244 states and 3112 transitions. [2022-07-22 23:25:04,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (26), 8 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-22 23:25:04,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3112 transitions. [2022-07-22 23:25:04,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-22 23:25:04,844 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:25:04,844 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:25:04,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-22 23:25:04,845 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:25:04,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:25:04,846 INFO L85 PathProgramCache]: Analyzing trace with hash 392724425, now seen corresponding path program 1 times [2022-07-22 23:25:04,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:25:04,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811142532] [2022-07-22 23:25:04,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:25:04,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:25:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:25:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 23:25:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 23:25:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:25:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:25:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:25:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:25:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:25:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 23:25:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 23:25:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 23:25:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:25:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:25:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:25:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:25:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-22 23:25:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-22 23:25:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-22 23:25:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-22 23:25:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:05,482 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-07-22 23:25:05,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:25:05,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811142532] [2022-07-22 23:25:05,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811142532] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:25:05,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857065127] [2022-07-22 23:25:05,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:25:05,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:25:05,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:25:05,491 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:25:05,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 23:25:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:06,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 3009 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:25:06,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:25:06,443 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-07-22 23:25:06,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:25:06,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857065127] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:25:06,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:25:06,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-07-22 23:25:06,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438824096] [2022-07-22 23:25:06,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:25:06,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:25:06,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:25:06,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:25:06,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-22 23:25:06,448 INFO L87 Difference]: Start difference. First operand 2244 states and 3112 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-22 23:25:06,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:25:06,636 INFO L93 Difference]: Finished difference Result 4505 states and 6309 transitions. [2022-07-22 23:25:06,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:25:06,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 220 [2022-07-22 23:25:06,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:25:06,644 INFO L225 Difference]: With dead ends: 4505 [2022-07-22 23:25:06,644 INFO L226 Difference]: Without dead ends: 2264 [2022-07-22 23:25:06,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-22 23:25:06,652 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 3 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:25:06,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1861 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:25:06,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2022-07-22 23:25:06,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 2249. [2022-07-22 23:25:06,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2249 states, 1601 states have (on average 1.3129294191130543) internal successors, (2102), 1618 states have internal predecessors, (2102), 499 states have call successors, (499), 147 states have call predecessors, (499), 148 states have return successors, (516), 516 states have call predecessors, (516), 498 states have call successors, (516) [2022-07-22 23:25:06,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2249 states to 2249 states and 3117 transitions. [2022-07-22 23:25:06,787 INFO L78 Accepts]: Start accepts. Automaton has 2249 states and 3117 transitions. Word has length 220 [2022-07-22 23:25:06,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:25:06,788 INFO L495 AbstractCegarLoop]: Abstraction has 2249 states and 3117 transitions. [2022-07-22 23:25:06,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-22 23:25:06,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2249 states and 3117 transitions. [2022-07-22 23:25:06,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-22 23:25:06,794 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:25:06,794 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:25:06,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-22 23:25:07,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:25:07,008 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:25:07,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:25:07,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1250127915, now seen corresponding path program 1 times [2022-07-22 23:25:07,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:25:07,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106749361] [2022-07-22 23:25:07,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:25:07,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:25:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:25:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 23:25:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 23:25:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:25:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:25:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:25:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:25:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:25:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 23:25:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 23:25:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 23:25:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:25:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:25:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:25:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:25:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-22 23:25:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-22 23:25:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:25:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:25:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:25:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:07,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:25:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-22 23:25:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-22 23:25:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-22 23:25:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-22 23:25:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:07,963 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-22 23:25:07,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:25:07,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106749361] [2022-07-22 23:25:07,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106749361] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:25:07,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888696087] [2022-07-22 23:25:07,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:25:07,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:25:07,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:25:07,966 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:25:07,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 23:25:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:09,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 3450 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:25:09,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:25:09,133 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-07-22 23:25:09,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:25:09,539 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-07-22 23:25:09,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888696087] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 23:25:09,539 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 23:25:09,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2022-07-22 23:25:09,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619811807] [2022-07-22 23:25:09,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 23:25:09,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-22 23:25:09,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:25:09,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-22 23:25:09,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-07-22 23:25:09,542 INFO L87 Difference]: Start difference. First operand 2249 states and 3117 transitions. Second operand has 16 states, 16 states have (on average 13.25) internal successors, (212), 9 states have internal predecessors, (212), 5 states have call successors, (62), 8 states have call predecessors, (62), 3 states have return successors, (55), 6 states have call predecessors, (55), 5 states have call successors, (55) [2022-07-22 23:25:12,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:25:27,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:25:28,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:25:30,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:25:35,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:25:39,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:25:39,306 INFO L93 Difference]: Finished difference Result 5387 states and 7959 transitions. [2022-07-22 23:25:39,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 23:25:39,307 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.25) internal successors, (212), 9 states have internal predecessors, (212), 5 states have call successors, (62), 8 states have call predecessors, (62), 3 states have return successors, (55), 6 states have call predecessors, (55), 5 states have call successors, (55) Word has length 274 [2022-07-22 23:25:39,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:25:39,321 INFO L225 Difference]: With dead ends: 5387 [2022-07-22 23:25:39,322 INFO L226 Difference]: Without dead ends: 3141 [2022-07-22 23:25:39,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 624 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2022-07-22 23:25:39,329 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 1063 mSDsluCounter, 2945 mSDsCounter, 0 mSdLazyCounter, 6528 mSolverCounterSat, 792 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 3796 SdHoareTripleChecker+Invalid, 7322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 6528 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:25:39,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 3796 Invalid, 7322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 6528 Invalid, 2 Unknown, 0 Unchecked, 29.2s Time] [2022-07-22 23:25:39,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2022-07-22 23:25:39,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 2335. [2022-07-22 23:25:39,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 1670 states have (on average 1.3107784431137726) internal successors, (2189), 1687 states have internal predecessors, (2189), 511 states have call successors, (511), 147 states have call predecessors, (511), 153 states have return successors, (552), 533 states have call predecessors, (552), 510 states have call successors, (552) [2022-07-22 23:25:39,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3252 transitions. [2022-07-22 23:25:39,514 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3252 transitions. Word has length 274 [2022-07-22 23:25:39,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:25:39,515 INFO L495 AbstractCegarLoop]: Abstraction has 2335 states and 3252 transitions. [2022-07-22 23:25:39,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.25) internal successors, (212), 9 states have internal predecessors, (212), 5 states have call successors, (62), 8 states have call predecessors, (62), 3 states have return successors, (55), 6 states have call predecessors, (55), 5 states have call successors, (55) [2022-07-22 23:25:39,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3252 transitions. [2022-07-22 23:25:39,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-07-22 23:25:39,523 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:25:39,523 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:25:39,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-22 23:25:39,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:25:39,736 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:25:39,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:25:39,736 INFO L85 PathProgramCache]: Analyzing trace with hash -778281887, now seen corresponding path program 1 times [2022-07-22 23:25:39,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:25:39,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898434176] [2022-07-22 23:25:39,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:25:39,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:25:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:25:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 23:25:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 23:25:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:25:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:25:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:25:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:25:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:25:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 23:25:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 23:25:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 23:25:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 23:25:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-22 23:25:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-22 23:25:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:25:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:25:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:25:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:25:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:25:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-22 23:25:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-22 23:25:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:25:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:25:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:25:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:25:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:25:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:25:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:25:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:25:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:25:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:25:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:25:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:25:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-22 23:25:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2022-07-22 23:25:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-07-22 23:25:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:40,952 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-07-22 23:25:40,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:25:40,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898434176] [2022-07-22 23:25:40,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898434176] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:25:40,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133570839] [2022-07-22 23:25:40,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:25:40,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:25:40,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:25:40,954 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:25:40,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 23:25:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:25:42,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 4016 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 23:25:42,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:25:42,406 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 219 proven. 34 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-07-22 23:25:42,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:25:42,965 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-07-22 23:25:42,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133570839] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 23:25:42,965 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 23:25:42,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 16 [2022-07-22 23:25:42,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104883429] [2022-07-22 23:25:42,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 23:25:42,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-22 23:25:42,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:25:42,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-22 23:25:42,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-07-22 23:25:42,968 INFO L87 Difference]: Start difference. First operand 2335 states and 3252 transitions. Second operand has 16 states, 16 states have (on average 15.5625) internal successors, (249), 9 states have internal predecessors, (249), 6 states have call successors, (83), 8 states have call predecessors, (83), 3 states have return successors, (77), 7 states have call predecessors, (77), 6 states have call successors, (77) [2022-07-22 23:25:45,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:25:59,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:26:01,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:26:04,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:26:07,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:26:10,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:26:10,392 INFO L93 Difference]: Finished difference Result 5515 states and 8143 transitions. [2022-07-22 23:26:10,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-22 23:26:10,392 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.5625) internal successors, (249), 9 states have internal predecessors, (249), 6 states have call successors, (83), 8 states have call predecessors, (83), 3 states have return successors, (77), 7 states have call predecessors, (77), 6 states have call successors, (77) Word has length 379 [2022-07-22 23:26:10,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:26:10,407 INFO L225 Difference]: With dead ends: 5515 [2022-07-22 23:26:10,407 INFO L226 Difference]: Without dead ends: 3183 [2022-07-22 23:26:10,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 900 GetRequests, 872 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=175, Invalid=695, Unknown=0, NotChecked=0, Total=870 [2022-07-22 23:26:10,415 INFO L413 NwaCegarLoop]: 841 mSDtfsCounter, 1102 mSDsluCounter, 3144 mSDsCounter, 0 mSdLazyCounter, 7050 mSolverCounterSat, 791 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 3985 SdHoareTripleChecker+Invalid, 7842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 7050 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2022-07-22 23:26:10,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 3985 Invalid, 7842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [791 Valid, 7050 Invalid, 1 Unknown, 0 Unchecked, 26.9s Time] [2022-07-22 23:26:10,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3183 states. [2022-07-22 23:26:10,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3183 to 2367. [2022-07-22 23:26:10,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 1698 states have (on average 1.3091872791519434) internal successors, (2223), 1710 states have internal predecessors, (2223), 515 states have call successors, (515), 147 states have call predecessors, (515), 153 states have return successors, (556), 542 states have call predecessors, (556), 514 states have call successors, (556) [2022-07-22 23:26:10,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 3294 transitions. [2022-07-22 23:26:10,677 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 3294 transitions. Word has length 379 [2022-07-22 23:26:10,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:26:10,677 INFO L495 AbstractCegarLoop]: Abstraction has 2367 states and 3294 transitions. [2022-07-22 23:26:10,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.5625) internal successors, (249), 9 states have internal predecessors, (249), 6 states have call successors, (83), 8 states have call predecessors, (83), 3 states have return successors, (77), 7 states have call predecessors, (77), 6 states have call successors, (77) [2022-07-22 23:26:10,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 3294 transitions. [2022-07-22 23:26:10,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-07-22 23:26:10,688 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:26:10,688 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:26:10,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-22 23:26:10,903 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,SelfDestructingSolverStorable20 [2022-07-22 23:26:10,904 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:26:10,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:26:10,904 INFO L85 PathProgramCache]: Analyzing trace with hash -620402375, now seen corresponding path program 1 times [2022-07-22 23:26:10,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:26:10,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688568516] [2022-07-22 23:26:10,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:10,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:26:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 23:26:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 23:26:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:26:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:26:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 23:26:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 23:26:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 23:26:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 23:26:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-22 23:26:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-22 23:26:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-22 23:26:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-07-22 23:26:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-07-22 23:26:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-07-22 23:26:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-07-22 23:26:11,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:26:11,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688568516] [2022-07-22 23:26:11,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688568516] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:26:11,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285252211] [2022-07-22 23:26:11,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:11,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:26:11,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:26:11,988 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:26:11,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-22 23:26:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:13,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 4002 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 23:26:13,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:26:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2022-07-22 23:26:13,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:26:13,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285252211] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:26:13,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:26:13,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-07-22 23:26:13,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238398419] [2022-07-22 23:26:13,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:26:13,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:26:13,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:26:13,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:26:13,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-22 23:26:13,379 INFO L87 Difference]: Start difference. First operand 2367 states and 3294 transitions. Second operand has 6 states, 6 states have (on average 27.0) internal successors, (162), 5 states have internal predecessors, (162), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-22 23:26:13,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:26:13,594 INFO L93 Difference]: Finished difference Result 4865 states and 6839 transitions. [2022-07-22 23:26:13,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 23:26:13,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 5 states have internal predecessors, (162), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 392 [2022-07-22 23:26:13,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:26:13,606 INFO L225 Difference]: With dead ends: 4865 [2022-07-22 23:26:13,606 INFO L226 Difference]: Without dead ends: 2501 [2022-07-22 23:26:13,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-07-22 23:26:13,613 INFO L413 NwaCegarLoop]: 949 mSDtfsCounter, 19 mSDsluCounter, 3768 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4717 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:26:13,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4717 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:26:13,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2022-07-22 23:26:13,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2477. [2022-07-22 23:26:13,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 1786 states have (on average 1.3073908174692048) internal successors, (2335), 1798 states have internal predecessors, (2335), 535 states have call successors, (535), 147 states have call predecessors, (535), 155 states have return successors, (580), 564 states have call predecessors, (580), 534 states have call successors, (580) [2022-07-22 23:26:13,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3450 transitions. [2022-07-22 23:26:13,760 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3450 transitions. Word has length 392 [2022-07-22 23:26:13,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:26:13,761 INFO L495 AbstractCegarLoop]: Abstraction has 2477 states and 3450 transitions. [2022-07-22 23:26:13,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 5 states have internal predecessors, (162), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-22 23:26:13,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3450 transitions. [2022-07-22 23:26:13,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-07-22 23:26:13,766 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:26:13,767 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:26:13,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-22 23:26:13,983 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,SelfDestructingSolverStorable21 [2022-07-22 23:26:13,984 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:26:13,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:26:13,984 INFO L85 PathProgramCache]: Analyzing trace with hash 23033313, now seen corresponding path program 1 times [2022-07-22 23:26:13,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:26:13,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014599493] [2022-07-22 23:26:13,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:13,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:26:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 23:26:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 23:26:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:26:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:26:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 23:26:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 23:26:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 23:26:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 23:26:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-22 23:26:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-22 23:26:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-22 23:26:14,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-07-22 23:26:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-22 23:26:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-22 23:26:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:14,928 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2022-07-22 23:26:14,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:26:14,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014599493] [2022-07-22 23:26:14,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014599493] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:26:14,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:26:14,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 23:26:14,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036083622] [2022-07-22 23:26:14,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:26:14,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 23:26:14,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:26:14,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 23:26:14,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-22 23:26:14,931 INFO L87 Difference]: Start difference. First operand 2477 states and 3450 transitions. Second operand has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-22 23:26:17,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:26:24,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:26:29,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:26:29,283 INFO L93 Difference]: Finished difference Result 5731 states and 8294 transitions. [2022-07-22 23:26:29,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 23:26:29,284 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 395 [2022-07-22 23:26:29,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:26:29,299 INFO L225 Difference]: With dead ends: 5731 [2022-07-22 23:26:29,299 INFO L226 Difference]: Without dead ends: 3257 [2022-07-22 23:26:29,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-07-22 23:26:29,306 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 964 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 2815 mSolverCounterSat, 706 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 3522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 706 IncrementalHoareTripleChecker+Valid, 2815 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:26:29,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 2259 Invalid, 3522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [706 Valid, 2815 Invalid, 1 Unknown, 0 Unchecked, 14.0s Time] [2022-07-22 23:26:29,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2022-07-22 23:26:29,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 2461. [2022-07-22 23:26:29,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2461 states, 1770 states have (on average 1.3) internal successors, (2301), 1782 states have internal predecessors, (2301), 535 states have call successors, (535), 147 states have call predecessors, (535), 155 states have return successors, (580), 564 states have call predecessors, (580), 534 states have call successors, (580) [2022-07-22 23:26:29,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 3416 transitions. [2022-07-22 23:26:29,503 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 3416 transitions. Word has length 395 [2022-07-22 23:26:29,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:26:29,503 INFO L495 AbstractCegarLoop]: Abstraction has 2461 states and 3416 transitions. [2022-07-22 23:26:29,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-22 23:26:29,504 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 3416 transitions. [2022-07-22 23:26:29,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-07-22 23:26:29,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:26:29,509 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:26:29,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-22 23:26:29,509 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:26:29,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:26:29,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1829409705, now seen corresponding path program 1 times [2022-07-22 23:26:29,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:26:29,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761814581] [2022-07-22 23:26:29,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:29,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:26:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:29,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:29,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 23:26:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:29,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:26:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:29,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:29,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:29,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:29,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:29,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:26:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:29,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:26:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:29,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:29,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 23:26:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:29,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 23:26:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 23:26:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 23:26:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-22 23:26:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-22 23:26:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-22 23:26:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:30,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-22 23:26:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-22 23:26:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-07-22 23:26:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:30,480 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-07-22 23:26:30,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:26:30,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761814581] [2022-07-22 23:26:30,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761814581] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:26:30,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370201163] [2022-07-22 23:26:30,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:30,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:26:30,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:26:30,484 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:26:30,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-22 23:26:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:32,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 3986 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 23:26:32,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:26:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2022-07-22 23:26:32,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:26:32,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370201163] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:26:32,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:26:32,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-07-22 23:26:32,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282291426] [2022-07-22 23:26:32,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:26:32,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:26:32,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:26:32,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:26:32,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-22 23:26:32,141 INFO L87 Difference]: Start difference. First operand 2461 states and 3416 transitions. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 5 states have internal predecessors, (160), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-22 23:26:32,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:26:32,348 INFO L93 Difference]: Finished difference Result 4929 states and 6875 transitions. [2022-07-22 23:26:32,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:26:32,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 5 states have internal predecessors, (160), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 390 [2022-07-22 23:26:32,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:26:32,362 INFO L225 Difference]: With dead ends: 4929 [2022-07-22 23:26:32,363 INFO L226 Difference]: Without dead ends: 2471 [2022-07-22 23:26:32,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-22 23:26:32,372 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 12 mSDsluCounter, 3756 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4701 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:26:32,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4701 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:26:32,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2022-07-22 23:26:32,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2465. [2022-07-22 23:26:32,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 1774 states have (on average 1.2993235625704622) internal successors, (2305), 1784 states have internal predecessors, (2305), 535 states have call successors, (535), 147 states have call predecessors, (535), 155 states have return successors, (580), 566 states have call predecessors, (580), 534 states have call successors, (580) [2022-07-22 23:26:32,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3420 transitions. [2022-07-22 23:26:32,521 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3420 transitions. Word has length 390 [2022-07-22 23:26:32,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:26:32,522 INFO L495 AbstractCegarLoop]: Abstraction has 2465 states and 3420 transitions. [2022-07-22 23:26:32,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 5 states have internal predecessors, (160), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-22 23:26:32,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3420 transitions. [2022-07-22 23:26:32,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-07-22 23:26:32,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:26:32,529 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:26:32,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-22 23:26:32,755 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,SelfDestructingSolverStorable23 [2022-07-22 23:26:32,756 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:26:32,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:26:32,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1310116172, now seen corresponding path program 1 times [2022-07-22 23:26:32,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:26:32,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058723940] [2022-07-22 23:26:32,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:32,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:26:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 23:26:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 23:26:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:26:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:26:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 23:26:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 23:26:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 23:26:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 23:26:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-22 23:26:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-22 23:26:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-22 23:26:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-22 23:26:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2022-07-22 23:26:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2022-07-22 23:26:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2022-07-22 23:26:33,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:26:33,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058723940] [2022-07-22 23:26:33,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058723940] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:26:33,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329242011] [2022-07-22 23:26:33,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:33,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:26:33,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:26:33,804 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:26:33,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-22 23:26:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:35,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 4022 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 23:26:35,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:26:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2022-07-22 23:26:35,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:26:35,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329242011] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:26:35,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:26:35,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-07-22 23:26:35,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451171362] [2022-07-22 23:26:35,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:26:35,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 23:26:35,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:26:35,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 23:26:35,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-22 23:26:35,467 INFO L87 Difference]: Start difference. First operand 2465 states and 3420 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-22 23:26:35,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:26:35,625 INFO L93 Difference]: Finished difference Result 5380 states and 7562 transitions. [2022-07-22 23:26:35,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 23:26:35,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) Word has length 397 [2022-07-22 23:26:35,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:26:35,638 INFO L225 Difference]: With dead ends: 5380 [2022-07-22 23:26:35,638 INFO L226 Difference]: Without dead ends: 2918 [2022-07-22 23:26:35,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-22 23:26:35,647 INFO L413 NwaCegarLoop]: 1248 mSDtfsCounter, 226 mSDsluCounter, 5958 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 7206 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:26:35,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 7206 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:26:35,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2022-07-22 23:26:35,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 2475. [2022-07-22 23:26:35,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2475 states, 1780 states have (on average 1.298314606741573) internal successors, (2311), 1792 states have internal predecessors, (2311), 535 states have call successors, (535), 147 states have call predecessors, (535), 159 states have return successors, (602), 568 states have call predecessors, (602), 534 states have call successors, (602) [2022-07-22 23:26:35,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 3448 transitions. [2022-07-22 23:26:35,815 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 3448 transitions. Word has length 397 [2022-07-22 23:26:35,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:26:35,816 INFO L495 AbstractCegarLoop]: Abstraction has 2475 states and 3448 transitions. [2022-07-22 23:26:35,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-22 23:26:35,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 3448 transitions. [2022-07-22 23:26:35,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-07-22 23:26:35,883 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:26:35,883 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:26:35,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-22 23:26:36,083 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,SelfDestructingSolverStorable24 [2022-07-22 23:26:36,084 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:26:36,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:26:36,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1590333038, now seen corresponding path program 1 times [2022-07-22 23:26:36,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:26:36,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583064241] [2022-07-22 23:26:36,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:36,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:26:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 23:26:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:26:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:26:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:26:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 23:26:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 23:26:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 23:26:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 23:26:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-22 23:26:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-22 23:26:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-22 23:26:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:36,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:36,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-07-22 23:26:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-22 23:26:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-22 23:26:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:37,114 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2022-07-22 23:26:37,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:26:37,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583064241] [2022-07-22 23:26:37,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583064241] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:26:37,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861077994] [2022-07-22 23:26:37,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:37,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:26:37,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:26:37,120 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:26:37,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-22 23:26:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:38,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 4006 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 23:26:38,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:26:38,936 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2022-07-22 23:26:38,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:26:38,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861077994] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:26:38,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:26:38,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-07-22 23:26:38,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74942262] [2022-07-22 23:26:38,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:26:38,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 23:26:38,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:26:38,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 23:26:38,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-22 23:26:38,938 INFO L87 Difference]: Start difference. First operand 2475 states and 3448 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-22 23:26:39,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:26:39,200 INFO L93 Difference]: Finished difference Result 5404 states and 7620 transitions. [2022-07-22 23:26:39,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 23:26:39,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) Word has length 395 [2022-07-22 23:26:39,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:26:39,221 INFO L225 Difference]: With dead ends: 5404 [2022-07-22 23:26:39,221 INFO L226 Difference]: Without dead ends: 2932 [2022-07-22 23:26:39,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-22 23:26:39,230 INFO L413 NwaCegarLoop]: 1249 mSDtfsCounter, 226 mSDsluCounter, 5962 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 7211 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:26:39,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 7211 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:26:39,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2022-07-22 23:26:39,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 2477. [2022-07-22 23:26:39,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 1782 states have (on average 1.297979797979798) internal successors, (2313), 1792 states have internal predecessors, (2313), 535 states have call successors, (535), 147 states have call predecessors, (535), 159 states have return successors, (602), 570 states have call predecessors, (602), 534 states have call successors, (602) [2022-07-22 23:26:39,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3450 transitions. [2022-07-22 23:26:39,404 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3450 transitions. Word has length 395 [2022-07-22 23:26:39,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:26:39,405 INFO L495 AbstractCegarLoop]: Abstraction has 2477 states and 3450 transitions. [2022-07-22 23:26:39,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-22 23:26:39,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3450 transitions. [2022-07-22 23:26:39,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-07-22 23:26:39,410 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:26:39,410 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:26:39,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-22 23:26:39,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:26:39,624 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:26:39,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:26:39,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1137766890, now seen corresponding path program 1 times [2022-07-22 23:26:39,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:26:39,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933720297] [2022-07-22 23:26:39,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:39,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:26:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-22 23:26:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:39,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 23:26:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:26:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:26:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:26:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 23:26:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 23:26:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 23:26:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 23:26:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-22 23:26:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-22 23:26:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-22 23:26:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:40,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-07-22 23:26:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-22 23:26:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-22 23:26:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:40,471 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 717 trivial. 0 not checked. [2022-07-22 23:26:40,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:26:40,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933720297] [2022-07-22 23:26:40,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933720297] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:26:40,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031373961] [2022-07-22 23:26:40,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:40,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:26:40,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:26:40,476 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:26:40,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-22 23:26:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:42,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 4012 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 23:26:42,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:26:42,338 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked. [2022-07-22 23:26:42,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:26:42,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031373961] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:26:42,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:26:42,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-07-22 23:26:42,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612226845] [2022-07-22 23:26:42,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:26:42,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 23:26:42,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:26:42,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 23:26:42,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-22 23:26:42,340 INFO L87 Difference]: Start difference. First operand 2477 states and 3450 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-22 23:26:42,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:26:42,578 INFO L93 Difference]: Finished difference Result 5610 states and 7956 transitions. [2022-07-22 23:26:42,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 23:26:42,579 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) Word has length 395 [2022-07-22 23:26:42,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:26:42,590 INFO L225 Difference]: With dead ends: 5610 [2022-07-22 23:26:42,590 INFO L226 Difference]: Without dead ends: 3136 [2022-07-22 23:26:42,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-07-22 23:26:42,601 INFO L413 NwaCegarLoop]: 1247 mSDtfsCounter, 245 mSDsluCounter, 5950 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 7197 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:26:42,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 7197 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:26:42,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2022-07-22 23:26:42,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 2477. [2022-07-22 23:26:42,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 1782 states have (on average 1.297979797979798) internal successors, (2313), 1792 states have internal predecessors, (2313), 535 states have call successors, (535), 147 states have call predecessors, (535), 159 states have return successors, (602), 570 states have call predecessors, (602), 534 states have call successors, (602) [2022-07-22 23:26:42,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3450 transitions. [2022-07-22 23:26:42,780 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3450 transitions. Word has length 395 [2022-07-22 23:26:42,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:26:42,782 INFO L495 AbstractCegarLoop]: Abstraction has 2477 states and 3450 transitions. [2022-07-22 23:26:42,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-22 23:26:42,782 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3450 transitions. [2022-07-22 23:26:42,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-07-22 23:26:42,846 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:26:42,847 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:26:42,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-22 23:26:43,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-22 23:26:43,048 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:26:43,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:26:43,048 INFO L85 PathProgramCache]: Analyzing trace with hash -816612432, now seen corresponding path program 1 times [2022-07-22 23:26:43,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:26:43,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825484467] [2022-07-22 23:26:43,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:43,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:26:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-22 23:26:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 23:26:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 23:26:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:26:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:26:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 23:26:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 23:26:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 23:26:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 23:26:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-22 23:26:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-22 23:26:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-22 23:26:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-22 23:26:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2022-07-22 23:26:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2022-07-22 23:26:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:43,963 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 717 trivial. 0 not checked. [2022-07-22 23:26:43,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:26:43,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825484467] [2022-07-22 23:26:43,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825484467] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:26:43,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057000561] [2022-07-22 23:26:43,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:43,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:26:43,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:26:43,968 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:26:43,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-22 23:26:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:45,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 4028 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 23:26:45,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:26:45,971 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked. [2022-07-22 23:26:45,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:26:45,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057000561] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:26:45,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:26:45,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-07-22 23:26:45,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954818485] [2022-07-22 23:26:45,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:26:45,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 23:26:45,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:26:45,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 23:26:45,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-22 23:26:45,974 INFO L87 Difference]: Start difference. First operand 2477 states and 3450 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-22 23:26:46,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:26:46,212 INFO L93 Difference]: Finished difference Result 5648 states and 7994 transitions. [2022-07-22 23:26:46,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 23:26:46,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) Word has length 397 [2022-07-22 23:26:46,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:26:46,224 INFO L225 Difference]: With dead ends: 5648 [2022-07-22 23:26:46,225 INFO L226 Difference]: Without dead ends: 3174 [2022-07-22 23:26:46,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-07-22 23:26:46,234 INFO L413 NwaCegarLoop]: 1246 mSDtfsCounter, 245 mSDsluCounter, 5945 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 7191 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:26:46,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 7191 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:26:46,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3174 states. [2022-07-22 23:26:46,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3174 to 2473. [2022-07-22 23:26:46,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 1780 states have (on average 1.298314606741573) internal successors, (2311), 1788 states have internal predecessors, (2311), 535 states have call successors, (535), 147 states have call predecessors, (535), 157 states have return successors, (584), 570 states have call predecessors, (584), 534 states have call successors, (584) [2022-07-22 23:26:46,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 3430 transitions. [2022-07-22 23:26:46,489 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 3430 transitions. Word has length 397 [2022-07-22 23:26:46,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:26:46,490 INFO L495 AbstractCegarLoop]: Abstraction has 2473 states and 3430 transitions. [2022-07-22 23:26:46,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-22 23:26:46,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 3430 transitions. [2022-07-22 23:26:46,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2022-07-22 23:26:46,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:26:46,498 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 23, 23, 23, 23, 23, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:26:46,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-22 23:26:46,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-22 23:26:46,724 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:26:46,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:26:46,724 INFO L85 PathProgramCache]: Analyzing trace with hash 571448748, now seen corresponding path program 1 times [2022-07-22 23:26:46,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:26:46,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236629082] [2022-07-22 23:26:46,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:46,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:26:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 23:26:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 23:26:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:26:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:26:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 23:26:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 23:26:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 23:26:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 23:26:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-22 23:26:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-22 23:26:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-22 23:26:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:47,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-22 23:26:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-22 23:26:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-22 23:26:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2022-07-22 23:26:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2022-07-22 23:26:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 754 [2022-07-22 23:26:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2022-07-22 23:26:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:48,402 INFO L134 CoverageAnalysis]: Checked inductivity of 3609 backedges. 2 proven. 121 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2022-07-22 23:26:48,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:26:48,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236629082] [2022-07-22 23:26:48,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236629082] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:26:48,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59710023] [2022-07-22 23:26:48,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:48,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:26:48,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:26:48,406 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:26:48,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-22 23:26:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:50,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 6486 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:26:50,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:26:50,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3609 backedges. 1854 proven. 0 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2022-07-22 23:26:50,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:26:50,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59710023] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:26:50,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:26:50,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2022-07-22 23:26:50,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205480663] [2022-07-22 23:26:50,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:26:50,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:26:50,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:26:50,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:26:50,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-22 23:26:50,817 INFO L87 Difference]: Start difference. First operand 2473 states and 3430 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-22 23:26:52,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:26:52,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:26:52,956 INFO L93 Difference]: Finished difference Result 4967 states and 6915 transitions. [2022-07-22 23:26:52,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:26:52,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 772 [2022-07-22 23:26:52,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:26:52,963 INFO L225 Difference]: With dead ends: 4967 [2022-07-22 23:26:52,963 INFO L226 Difference]: Without dead ends: 2497 [2022-07-22 23:26:52,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1024 GetRequests, 1014 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-22 23:26:52,968 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 5 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:26:52,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1872 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2022-07-22 23:26:52,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2497 states. [2022-07-22 23:26:53,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2497 to 2481. [2022-07-22 23:26:53,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2481 states, 1788 states have (on average 1.2969798657718121) internal successors, (2319), 1796 states have internal predecessors, (2319), 535 states have call successors, (535), 147 states have call predecessors, (535), 157 states have return successors, (584), 570 states have call predecessors, (584), 534 states have call successors, (584) [2022-07-22 23:26:53,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2481 states to 2481 states and 3438 transitions. [2022-07-22 23:26:53,098 INFO L78 Accepts]: Start accepts. Automaton has 2481 states and 3438 transitions. Word has length 772 [2022-07-22 23:26:53,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:26:53,098 INFO L495 AbstractCegarLoop]: Abstraction has 2481 states and 3438 transitions. [2022-07-22 23:26:53,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-22 23:26:53,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2481 states and 3438 transitions. [2022-07-22 23:26:53,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 774 [2022-07-22 23:26:53,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:26:53,107 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 23, 23, 23, 23, 23, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:26:53,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-07-22 23:26:53,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-07-22 23:26:53,332 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:26:53,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:26:53,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1366406414, now seen corresponding path program 1 times [2022-07-22 23:26:53,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:26:53,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526338490] [2022-07-22 23:26:53,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:53,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:26:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:53,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:53,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 23:26:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:26:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:26:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:26:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 23:26:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 23:26:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 23:26:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 23:26:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-22 23:26:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-22 23:26:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-22 23:26:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-22 23:26:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-22 23:26:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-22 23:26:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-22 23:26:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:54,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2022-07-22 23:26:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 755 [2022-07-22 23:26:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 761 [2022-07-22 23:26:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:54,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3609 backedges. 2 proven. 121 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2022-07-22 23:26:54,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:26:54,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526338490] [2022-07-22 23:26:54,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526338490] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:26:54,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686046194] [2022-07-22 23:26:54,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:54,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:26:54,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:26:54,931 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:26:54,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-22 23:26:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:57,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 6473 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:26:57,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:26:57,434 INFO L134 CoverageAnalysis]: Checked inductivity of 3609 backedges. 1857 proven. 0 refuted. 0 times theorem prover too weak. 1752 trivial. 0 not checked. [2022-07-22 23:26:57,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:26:57,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686046194] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:26:57,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:26:57,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2022-07-22 23:26:57,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916442690] [2022-07-22 23:26:57,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:26:57,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:26:57,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:26:57,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:26:57,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-22 23:26:57,437 INFO L87 Difference]: Start difference. First operand 2481 states and 3438 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-22 23:26:57,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:26:57,650 INFO L93 Difference]: Finished difference Result 4995 states and 6961 transitions. [2022-07-22 23:26:57,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:26:57,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 773 [2022-07-22 23:26:57,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:26:57,658 INFO L225 Difference]: With dead ends: 4995 [2022-07-22 23:26:57,658 INFO L226 Difference]: Without dead ends: 2517 [2022-07-22 23:26:57,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1025 GetRequests, 1015 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-22 23:26:57,665 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 9 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1865 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 [2022-07-22 23:26:57,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1865 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:26:57,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2022-07-22 23:26:57,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2505. [2022-07-22 23:26:57,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1812 states have (on average 1.2996688741721854) internal successors, (2355), 1820 states have internal predecessors, (2355), 535 states have call successors, (535), 147 states have call predecessors, (535), 157 states have return successors, (584), 570 states have call predecessors, (584), 534 states have call successors, (584) [2022-07-22 23:26:57,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3474 transitions. [2022-07-22 23:26:57,832 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3474 transitions. Word has length 773 [2022-07-22 23:26:57,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:26:57,833 INFO L495 AbstractCegarLoop]: Abstraction has 2505 states and 3474 transitions. [2022-07-22 23:26:57,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-22 23:26:57,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3474 transitions. [2022-07-22 23:26:57,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 774 [2022-07-22 23:26:57,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:26:57,841 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 23, 23, 23, 23, 23, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:26:57,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-22 23:26:58,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:26:58,068 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:26:58,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:26:58,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1147675470, now seen corresponding path program 1 times [2022-07-22 23:26:58,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:26:58,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755267208] [2022-07-22 23:26:58,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:58,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:26:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 23:26:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:26:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:26:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:26:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 23:26:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 23:26:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 23:26:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 23:26:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-22 23:26:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-22 23:26:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-22 23:26:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:58,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:58,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-22 23:26:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-22 23:26:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-22 23:26:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-22 23:26:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 23:26:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 23:26:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-22 23:26:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:26:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:26:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:26:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:26:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:26:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:26:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:26:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2022-07-22 23:26:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 755 [2022-07-22 23:26:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 761 [2022-07-22 23:26:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:26:59,508 INFO L134 CoverageAnalysis]: Checked inductivity of 3609 backedges. 2 proven. 121 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2022-07-22 23:26:59,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:26:59,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755267208] [2022-07-22 23:26:59,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755267208] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:26:59,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882159386] [2022-07-22 23:26:59,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:26:59,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:26:59,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:26:59,510 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:26:59,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process