/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:54:28,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:54:28,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:54:28,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:54:28,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:54:28,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:54:28,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:54:28,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:54:28,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:54:28,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:54:28,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:54:28,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:54:28,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:54:28,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:54:28,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:54:28,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:54:28,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:54:28,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:54:28,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:54:28,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:54:28,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:54:28,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:54:28,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:54:28,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:54:28,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:54:28,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:54:28,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:54:28,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:54:28,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:54:28,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:54:28,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:54:28,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:54:28,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:54:28,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:54:28,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:54:28,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:54:28,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:54:28,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:54:28,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:54:28,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:54:28,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:54:28,696 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 12:54:28,753 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:54:28,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:54:28,754 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:54:28,754 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:54:28,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:54:28,756 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:54:28,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:54:28,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:54:28,759 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:54:28,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:54:28,760 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:54:28,761 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:54:28,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:54:28,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:54:28,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:54:28,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:54:28,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:54:28,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:54:28,762 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:54:28,763 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:54:28,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:54:28,763 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:54:28,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:54:28,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:54:28,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:54:28,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:54:28,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:54:28,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:54:28,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:54:28,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:54:28,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:54:28,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:54:28,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:54:28,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:54:29,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:54:29,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:54:29,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:54:29,180 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:54:29,180 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:54:29,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2022-10-16 12:54:29,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f9b8cb6/322eb46af0484b88b1a7d964e46c6a87/FLAG6518fc12b [2022-10-16 12:54:30,292 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:54:30,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2022-10-16 12:54:30,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f9b8cb6/322eb46af0484b88b1a7d964e46c6a87/FLAG6518fc12b [2022-10-16 12:54:30,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f9b8cb6/322eb46af0484b88b1a7d964e46c6a87 [2022-10-16 12:54:30,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:54:30,720 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:54:30,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:54:30,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:54:30,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:54:30,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:54:30" (1/1) ... [2022-10-16 12:54:30,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581955f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:30, skipping insertion in model container [2022-10-16 12:54:30,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:54:30" (1/1) ... [2022-10-16 12:54:30,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:54:30,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:54:33,329 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-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2022-10-16 12:54:33,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:54:33,490 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:54:33,971 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-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2022-10-16 12:54:33,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:54:34,156 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:54:34,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:34 WrapperNode [2022-10-16 12:54:34,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:54:34,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:54:34,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:54:34,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:54:34,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:34" (1/1) ... [2022-10-16 12:54:34,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:34" (1/1) ... [2022-10-16 12:54:34,468 INFO L138 Inliner]: procedures = 309, calls = 2432, calls flagged for inlining = 139, calls inlined = 90, statements flattened = 4021 [2022-10-16 12:54:34,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:54:34,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:54:34,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:54:34,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:54:34,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:34" (1/1) ... [2022-10-16 12:54:34,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:34" (1/1) ... [2022-10-16 12:54:34,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:34" (1/1) ... [2022-10-16 12:54:34,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:34" (1/1) ... [2022-10-16 12:54:34,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:34" (1/1) ... [2022-10-16 12:54:34,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:34" (1/1) ... [2022-10-16 12:54:34,739 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:34" (1/1) ... [2022-10-16 12:54:34,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:34" (1/1) ... [2022-10-16 12:54:34,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:54:34,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:54:34,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:54:34,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:54:34,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:34" (1/1) ... [2022-10-16 12:54:34,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:54:34,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:54:34,847 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) [2022-10-16 12:54:34,869 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 [2022-10-16 12:54:34,915 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-10-16 12:54:34,915 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-10-16 12:54:34,915 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-10-16 12:54:34,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-10-16 12:54:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_ctl_ioctl [2022-10-16 12:54:34,916 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_ctl_ioctl [2022-10-16 12:54:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_release [2022-10-16 12:54:34,916 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_release [2022-10-16 12:54:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2022-10-16 12:54:34,916 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2022-10-16 12:54:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 12:54:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 12:54:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_disc_info [2022-10-16 12:54:34,917 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_disc_info [2022-10-16 12:54:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_bio_alloc [2022-10-16 12:54:34,918 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_bio_alloc [2022-10-16 12:54:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 12:54:34,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 12:54:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_setup_dev [2022-10-16 12:54:34,918 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_setup_dev [2022-10-16 12:54:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-10-16 12:54:34,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-10-16 12:54:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure bdget [2022-10-16 12:54:34,919 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget [2022-10-16 12:54:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_set_speed [2022-10-16 12:54:34,919 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_set_speed [2022-10-16 12:54:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure bdevname [2022-10-16 12:54:34,919 INFO L138 BoogieDeclarations]: Found implementation of procedure bdevname [2022-10-16 12:54:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 12:54:34,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 12:54:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_shrink_pktlist [2022-10-16 12:54:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_shrink_pktlist [2022-10-16 12:54:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-10-16 12:54:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-10-16 12:54:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-10-16 12:54:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-10-16 12:54:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-16 12:54:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-16 12:54:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-16 12:54:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-16 12:54:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_put [2022-10-16 12:54:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_put [2022-10-16 12:54:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-10-16 12:54:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-10-16 12:54:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-16 12:54:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-16 12:54:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_select [2022-10-16 12:54:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_select [2022-10-16 12:54:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_remove [2022-10-16 12:54:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_remove [2022-10-16 12:54:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-10-16 12:54:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-10-16 12:54:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_debugfs_cleanup [2022-10-16 12:54:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_debugfs_cleanup [2022-10-16 12:54:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:54:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-16 12:54:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-16 12:54:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure bio_init [2022-10-16 12:54:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_init [2022-10-16 12:54:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure set_blocksize [2022-10-16 12:54:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure set_blocksize [2022-10-16 12:54:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_dump_sense [2022-10-16 12:54:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_dump_sense [2022-10-16 12:54:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2022-10-16 12:54:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2022-10-16 12:54:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2022-10-16 12:54:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2022-10-16 12:54:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 12:54:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-10-16 12:54:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-10-16 12:54:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_lock_door [2022-10-16 12:54:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_lock_door [2022-10-16 12:54:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_get [2022-10-16 12:54:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_get [2022-10-16 12:54:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_remove_dev [2022-10-16 12:54:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_remove_dev [2022-10-16 12:54:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-10-16 12:54:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-10-16 12:54:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-10-16 12:54:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-10-16 12:54:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:54:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2022-10-16 12:54:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2022-10-16 12:54:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 12:54:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-16 12:54:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-16 12:54:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-10-16 12:54:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-10-16 12:54:34,929 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-10-16 12:54:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-10-16 12:54:34,929 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-10-16 12:54:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-10-16 12:54:34,929 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-16 12:54:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-16 12:54:34,929 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-16 12:54:34,930 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-16 12:54:34,930 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-10-16 12:54:34,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-10-16 12:54:34,930 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-16 12:54:34,930 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-16 12:54:34,930 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-16 12:54:34,930 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-16 12:54:34,931 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_sysfs_cleanup [2022-10-16 12:54:34,931 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_sysfs_cleanup [2022-10-16 12:54:34,931 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2022-10-16 12:54:34,931 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2022-10-16 12:54:34,931 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_find_dev_from_minor [2022-10-16 12:54:34,931 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_find_dev_from_minor [2022-10-16 12:54:34,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 12:54:34,932 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-16 12:54:34,932 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-16 12:54:34,932 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-16 12:54:34,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-16 12:54:34,932 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-16 12:54:34,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-16 12:54:34,932 INFO L130 BoogieDeclarations]: Found specification of procedure init_write_congestion_marks [2022-10-16 12:54:34,933 INFO L138 BoogieDeclarations]: Found implementation of procedure init_write_congestion_marks [2022-10-16 12:54:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-16 12:54:34,933 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-16 12:54:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 12:54:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_track_info [2022-10-16 12:54:34,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_track_info [2022-10-16 12:54:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:54:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-10-16 12:54:34,934 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-10-16 12:54:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 12:54:34,934 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 12:54:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure new_decode_dev [2022-10-16 12:54:34,934 INFO L138 BoogieDeclarations]: Found implementation of procedure new_decode_dev [2022-10-16 12:54:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-16 12:54:34,935 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-16 12:54:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_create [2022-10-16 12:54:34,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_create [2022-10-16 12:54:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 12:54:34,935 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 12:54:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-10-16 12:54:34,936 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-10-16 12:54:34,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:54:34,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 12:54:34,936 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-16 12:54:34,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-16 12:54:34,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:54:34,936 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_put [2022-10-16 12:54:34,937 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_put [2022-10-16 12:54:34,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 12:54:34,937 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2022-10-16 12:54:34,937 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2022-10-16 12:54:34,937 INFO L130 BoogieDeclarations]: Found specification of procedure queue_max_segments [2022-10-16 12:54:34,937 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_max_segments [2022-10-16 12:54:34,937 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_check_events [2022-10-16 12:54:34,937 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_check_events [2022-10-16 12:54:34,938 INFO L130 BoogieDeclarations]: Found specification of procedure init_cdrom_command [2022-10-16 12:54:34,938 INFO L138 BoogieDeclarations]: Found implementation of procedure init_cdrom_command [2022-10-16 12:54:34,938 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-16 12:54:34,938 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-16 12:54:34,938 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_sense [2022-10-16 12:54:34,938 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_sense [2022-10-16 12:54:34,938 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-10-16 12:54:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-10-16 12:54:34,939 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_generic_packet [2022-10-16 12:54:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_generic_packet [2022-10-16 12:54:34,939 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-16 12:54:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-16 12:54:34,939 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-16 12:54:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-16 12:54:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2022-10-16 12:54:34,940 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2022-10-16 12:54:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_flush_cache [2022-10-16 12:54:34,940 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_flush_cache [2022-10-16 12:54:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:54:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:54:34,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:54:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-16 12:54:34,941 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-16 12:54:35,499 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:54:35,503 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:54:35,712 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:54:35,904 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-10-16 12:54:35,904 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-10-16 12:54:37,264 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:54:37,271 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:54:37,272 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:54:37,273 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:54:37,278 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:54:37,279 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:54:37,285 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:54:39,245 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##416: assume false; [2022-10-16 12:54:39,245 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##417: assume !false; [2022-10-16 12:54:39,246 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !false; [2022-10-16 12:54:39,246 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##281: assume false; [2022-10-16 12:54:39,246 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##214: assume !false; [2022-10-16 12:54:39,246 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##213: assume false; [2022-10-16 12:54:39,246 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##324: assume false; [2022-10-16 12:54:39,247 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##177: assume !false; [2022-10-16 12:54:39,247 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##176: assume false; [2022-10-16 12:54:39,247 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume !false; [2022-10-16 12:54:39,247 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume false; [2022-10-16 12:54:39,247 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume !false; [2022-10-16 12:54:39,247 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##152: assume false; [2022-10-16 12:54:39,247 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##325: assume !false; [2022-10-16 12:54:39,319 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:54:39,338 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:54:39,339 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 12:54:39,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:54:39 BoogieIcfgContainer [2022-10-16 12:54:39,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:54:39,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:54:39,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:54:39,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:54:39,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:54:30" (1/3) ... [2022-10-16 12:54:39,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aba9c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:54:39, skipping insertion in model container [2022-10-16 12:54:39,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:34" (2/3) ... [2022-10-16 12:54:39,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aba9c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:54:39, skipping insertion in model container [2022-10-16 12:54:39,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:54:39" (3/3) ... [2022-10-16 12:54:39,353 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2022-10-16 12:54:39,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:54:39,375 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2022-10-16 12:54:39,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:54:39,514 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@71f61ba2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:54:39,515 INFO L358 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2022-10-16 12:54:39,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 1346 states, 929 states have (on average 1.3885898815931108) internal successors, (1290), 1028 states have internal predecessors, (1290), 257 states have call successors, (257), 79 states have call predecessors, (257), 79 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2022-10-16 12:54:39,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 12:54:39,543 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:39,544 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:54:39,544 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:54:39,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:39,551 INFO L85 PathProgramCache]: Analyzing trace with hash 124755165, now seen corresponding path program 1 times [2022-10-16 12:54:39,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:39,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40414023] [2022-10-16 12:54:39,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:39,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:40,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:54:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:40,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:40,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 12:54:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:40,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:54:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:40,685 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:54:40,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:40,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40414023] [2022-10-16 12:54:40,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40414023] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:54:40,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:54:40,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:54:40,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761403467] [2022-10-16 12:54:40,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:54:40,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:54:40,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:54:40,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:54:40,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:54:40,747 INFO L87 Difference]: Start difference. First operand has 1346 states, 929 states have (on average 1.3885898815931108) internal successors, (1290), 1028 states have internal predecessors, (1290), 257 states have call successors, (257), 79 states have call predecessors, (257), 79 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 12:54:44,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:54:45,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:54:45,631 INFO L93 Difference]: Finished difference Result 2776 states and 3857 transitions. [2022-10-16 12:54:45,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:54:45,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2022-10-16 12:54:45,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:54:45,667 INFO L225 Difference]: With dead ends: 2776 [2022-10-16 12:54:45,667 INFO L226 Difference]: Without dead ends: 1404 [2022-10-16 12:54:45,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:54:45,686 INFO L413 NwaCegarLoop]: 1737 mSDtfsCounter, 364 mSDsluCounter, 3495 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 281 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 5232 SdHoareTripleChecker+Invalid, 1673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-10-16 12:54:45,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 5232 Invalid, 1673 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [281 Valid, 1391 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-10-16 12:54:45,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2022-10-16 12:54:45,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1300. [2022-10-16 12:54:45,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 914 states have (on average 1.3468271334792123) internal successors, (1231), 988 states have internal predecessors, (1231), 250 states have call successors, (250), 78 states have call predecessors, (250), 78 states have return successors, (250), 247 states have call predecessors, (250), 250 states have call successors, (250) [2022-10-16 12:54:45,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1731 transitions. [2022-10-16 12:54:45,865 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1731 transitions. Word has length 41 [2022-10-16 12:54:45,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:54:45,865 INFO L495 AbstractCegarLoop]: Abstraction has 1300 states and 1731 transitions. [2022-10-16 12:54:45,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 12:54:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1731 transitions. [2022-10-16 12:54:45,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 12:54:45,870 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:45,870 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:54:45,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:54:45,871 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:54:45,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:45,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1306373134, now seen corresponding path program 1 times [2022-10-16 12:54:45,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:45,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252580221] [2022-10-16 12:54:45,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:45,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:46,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:54:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:46,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:46,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:54:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:46,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 12:54:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:46,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:54:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:46,338 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:54:46,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:46,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252580221] [2022-10-16 12:54:46,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252580221] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:54:46,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:54:46,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:54:46,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894137555] [2022-10-16 12:54:46,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:54:46,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:54:46,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:54:46,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:54:46,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:54:46,344 INFO L87 Difference]: Start difference. First operand 1300 states and 1731 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-16 12:54:49,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:54:50,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:54:50,461 INFO L93 Difference]: Finished difference Result 2762 states and 3745 transitions. [2022-10-16 12:54:50,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:54:50,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 48 [2022-10-16 12:54:50,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:54:50,474 INFO L225 Difference]: With dead ends: 2762 [2022-10-16 12:54:50,474 INFO L226 Difference]: Without dead ends: 1512 [2022-10-16 12:54:50,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:54:50,481 INFO L413 NwaCegarLoop]: 1737 mSDtfsCounter, 940 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 302 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 3375 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-10-16 12:54:50,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 3375 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 842 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-10-16 12:54:50,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2022-10-16 12:54:50,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1408. [2022-10-16 12:54:50,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1000 states have (on average 1.356) internal successors, (1356), 1074 states have internal predecessors, (1356), 274 states have call successors, (274), 78 states have call predecessors, (274), 78 states have return successors, (274), 270 states have call predecessors, (274), 274 states have call successors, (274) [2022-10-16 12:54:50,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1904 transitions. [2022-10-16 12:54:50,570 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1904 transitions. Word has length 48 [2022-10-16 12:54:50,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:54:50,570 INFO L495 AbstractCegarLoop]: Abstraction has 1408 states and 1904 transitions. [2022-10-16 12:54:50,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-16 12:54:50,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1904 transitions. [2022-10-16 12:54:50,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 12:54:50,574 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:50,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:54:50,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:54:50,574 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:54:50,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:50,575 INFO L85 PathProgramCache]: Analyzing trace with hash -2061674408, now seen corresponding path program 1 times [2022-10-16 12:54:50,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:50,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797097616] [2022-10-16 12:54:50,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:50,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:51,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:54:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:51,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:51,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:54:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:51,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:54:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:51,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:54:51,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:51,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797097616] [2022-10-16 12:54:51,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797097616] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:54:51,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:54:51,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:54:51,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996987775] [2022-10-16 12:54:51,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:54:51,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:54:51,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:54:51,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:54:51,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:54:51,096 INFO L87 Difference]: Start difference. First operand 1408 states and 1904 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-10-16 12:54:54,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:54:54,012 INFO L93 Difference]: Finished difference Result 2873 states and 3917 transitions. [2022-10-16 12:54:54,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:54:54,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 51 [2022-10-16 12:54:54,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:54:54,025 INFO L225 Difference]: With dead ends: 2873 [2022-10-16 12:54:54,025 INFO L226 Difference]: Without dead ends: 1512 [2022-10-16 12:54:54,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:54:54,031 INFO L413 NwaCegarLoop]: 1724 mSDtfsCounter, 349 mSDsluCounter, 4746 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 6470 SdHoareTripleChecker+Invalid, 2138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-16 12:54:54,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 6470 Invalid, 2138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 1867 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-16 12:54:54,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2022-10-16 12:54:54,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1408. [2022-10-16 12:54:54,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1000 states have (on average 1.355) internal successors, (1355), 1073 states have internal predecessors, (1355), 274 states have call successors, (274), 78 states have call predecessors, (274), 78 states have return successors, (274), 270 states have call predecessors, (274), 274 states have call successors, (274) [2022-10-16 12:54:54,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1903 transitions. [2022-10-16 12:54:54,105 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1903 transitions. Word has length 51 [2022-10-16 12:54:54,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:54:54,105 INFO L495 AbstractCegarLoop]: Abstraction has 1408 states and 1903 transitions. [2022-10-16 12:54:54,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-10-16 12:54:54,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1903 transitions. [2022-10-16 12:54:54,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-16 12:54:54,108 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:54,109 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:54:54,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:54:54,109 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:54:54,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:54,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1149391224, now seen corresponding path program 1 times [2022-10-16 12:54:54,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:54,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052476345] [2022-10-16 12:54:54,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:54,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:54,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:54:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:54,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:54,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:54:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:54,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:54,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:54,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:54:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:54,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:54:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:54,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 12:54:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:54,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 12:54:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:54,674 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 12:54:54,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:54,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052476345] [2022-10-16 12:54:54,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052476345] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:54:54,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:54:54,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 12:54:54,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734479820] [2022-10-16 12:54:54,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:54:54,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:54:54,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:54:54,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:54:54,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:54:54,677 INFO L87 Difference]: Start difference. First operand 1408 states and 1903 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 12:54:59,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:01,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:03,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:04,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:55:04,061 INFO L93 Difference]: Finished difference Result 2907 states and 3961 transitions. [2022-10-16 12:55:04,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:55:04,062 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2022-10-16 12:55:04,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:55:04,077 INFO L225 Difference]: With dead ends: 2907 [2022-10-16 12:55:04,078 INFO L226 Difference]: Without dead ends: 1512 [2022-10-16 12:55:04,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:55:04,091 INFO L413 NwaCegarLoop]: 1703 mSDtfsCounter, 353 mSDsluCounter, 5946 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 274 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 7649 SdHoareTripleChecker+Invalid, 2642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:55:04,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 7649 Invalid, 2642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 2365 Invalid, 3 Unknown, 0 Unchecked, 9.1s Time] [2022-10-16 12:55:04,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2022-10-16 12:55:04,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1408. [2022-10-16 12:55:04,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1000 states have (on average 1.354) internal successors, (1354), 1073 states have internal predecessors, (1354), 274 states have call successors, (274), 78 states have call predecessors, (274), 78 states have return successors, (274), 270 states have call predecessors, (274), 274 states have call successors, (274) [2022-10-16 12:55:04,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1902 transitions. [2022-10-16 12:55:04,176 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1902 transitions. Word has length 81 [2022-10-16 12:55:04,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:55:04,176 INFO L495 AbstractCegarLoop]: Abstraction has 1408 states and 1902 transitions. [2022-10-16 12:55:04,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 12:55:04,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1902 transitions. [2022-10-16 12:55:04,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 12:55:04,182 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:55:04,182 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:55:04,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:55:04,183 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:55:04,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:55:04,183 INFO L85 PathProgramCache]: Analyzing trace with hash -2134662271, now seen corresponding path program 1 times [2022-10-16 12:55:04,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:55:04,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158914190] [2022-10-16 12:55:04,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:55:04,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:55:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:04,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:55:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:04,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:04,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:55:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:04,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:04,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:04,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:04,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:55:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:04,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:55:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:04,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 12:55:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:04,705 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 12:55:04,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:55:04,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158914190] [2022-10-16 12:55:04,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158914190] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:55:04,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:55:04,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:55:04,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499394732] [2022-10-16 12:55:04,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:55:04,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:55:04,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:55:04,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:55:04,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:55:04,708 INFO L87 Difference]: Start difference. First operand 1408 states and 1902 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, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 12:55:08,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:55:08,462 INFO L93 Difference]: Finished difference Result 4947 states and 7069 transitions. [2022-10-16 12:55:08,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:55:08,463 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, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 83 [2022-10-16 12:55:08,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:55:08,491 INFO L225 Difference]: With dead ends: 4947 [2022-10-16 12:55:08,492 INFO L226 Difference]: Without dead ends: 3582 [2022-10-16 12:55:08,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:55:08,501 INFO L413 NwaCegarLoop]: 3056 mSDtfsCounter, 2599 mSDsluCounter, 5866 mSDsCounter, 0 mSdLazyCounter, 1898 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2898 SdHoareTripleChecker+Valid, 8922 SdHoareTripleChecker+Invalid, 2451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 1898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:55:08,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2898 Valid, 8922 Invalid, 2451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 1898 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-10-16 12:55:08,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3582 states. [2022-10-16 12:55:08,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3582 to 1410. [2022-10-16 12:55:08,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1002 states have (on average 1.3532934131736527) internal successors, (1356), 1075 states have internal predecessors, (1356), 274 states have call successors, (274), 78 states have call predecessors, (274), 78 states have return successors, (274), 270 states have call predecessors, (274), 274 states have call successors, (274) [2022-10-16 12:55:08,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1904 transitions. [2022-10-16 12:55:08,617 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1904 transitions. Word has length 83 [2022-10-16 12:55:08,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:55:08,618 INFO L495 AbstractCegarLoop]: Abstraction has 1410 states and 1904 transitions. [2022-10-16 12:55:08,618 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, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 12:55:08,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1904 transitions. [2022-10-16 12:55:08,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 12:55:08,621 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:55:08,621 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:55:08,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 12:55:08,622 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:55:08,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:55:08,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1604997054, now seen corresponding path program 1 times [2022-10-16 12:55:08,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:55:08,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947126481] [2022-10-16 12:55:08,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:55:08,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:55:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:09,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:55:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:09,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:10,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:55:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:10,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:10,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:10,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:10,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:55:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:10,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 12:55:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:10,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 12:55:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:10,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 12:55:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:10,139 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:55:10,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:55:10,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947126481] [2022-10-16 12:55:10,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947126481] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:55:10,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834430479] [2022-10-16 12:55:10,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:55:10,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:55:10,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:55:10,146 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) [2022-10-16 12:55:10,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 12:55:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:10,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 2787 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 12:55:10,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:55:11,067 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 12:55:11,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:55:11,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834430479] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:55:11,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:55:11,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-10-16 12:55:11,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690595681] [2022-10-16 12:55:11,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:55:11,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:55:11,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:55:11,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:55:11,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2022-10-16 12:55:11,071 INFO L87 Difference]: Start difference. First operand 1410 states and 1904 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-10-16 12:55:11,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:55:11,326 INFO L93 Difference]: Finished difference Result 2805 states and 3789 transitions. [2022-10-16 12:55:11,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 12:55:11,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 88 [2022-10-16 12:55:11,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:55:11,337 INFO L225 Difference]: With dead ends: 2805 [2022-10-16 12:55:11,337 INFO L226 Difference]: Without dead ends: 1388 [2022-10-16 12:55:11,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2022-10-16 12:55:11,344 INFO L413 NwaCegarLoop]: 1725 mSDtfsCounter, 15 mSDsluCounter, 8597 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 10322 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:55:11,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 10322 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:55:11,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2022-10-16 12:55:11,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1388. [2022-10-16 12:55:11,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 989 states have (on average 1.352881698685541) internal successors, (1338), 1061 states have internal predecessors, (1338), 268 states have call successors, (268), 75 states have call predecessors, (268), 75 states have return successors, (268), 264 states have call predecessors, (268), 268 states have call successors, (268) [2022-10-16 12:55:11,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1874 transitions. [2022-10-16 12:55:11,424 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1874 transitions. Word has length 88 [2022-10-16 12:55:11,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:55:11,425 INFO L495 AbstractCegarLoop]: Abstraction has 1388 states and 1874 transitions. [2022-10-16 12:55:11,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-10-16 12:55:11,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1874 transitions. [2022-10-16 12:55:11,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 12:55:11,427 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:55:11,427 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:55:11,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 12:55:11,641 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 [2022-10-16 12:55:11,641 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:55:11,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:55:11,642 INFO L85 PathProgramCache]: Analyzing trace with hash 781405214, now seen corresponding path program 1 times [2022-10-16 12:55:11,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:55:11,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432898896] [2022-10-16 12:55:11,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:55:11,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:55:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:12,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:55:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:12,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:12,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:55:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:12,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:12,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:12,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:12,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:55:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:12,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:12,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 12:55:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:12,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 12:55:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:12,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 12:55:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:12,208 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 12:55:12,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:55:12,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432898896] [2022-10-16 12:55:12,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432898896] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:55:12,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:55:12,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:55:12,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773011077] [2022-10-16 12:55:12,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:55:12,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:55:12,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:55:12,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:55:12,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:55:12,211 INFO L87 Difference]: Start difference. First operand 1388 states and 1874 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 12:55:16,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:18,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:20,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:21,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:55:21,105 INFO L93 Difference]: Finished difference Result 2857 states and 3891 transitions. [2022-10-16 12:55:21,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:55:21,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2022-10-16 12:55:21,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:55:21,125 INFO L225 Difference]: With dead ends: 2857 [2022-10-16 12:55:21,125 INFO L226 Difference]: Without dead ends: 1492 [2022-10-16 12:55:21,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:55:21,132 INFO L413 NwaCegarLoop]: 1698 mSDtfsCounter, 948 mSDsluCounter, 4061 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 257 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 5759 SdHoareTripleChecker+Invalid, 1967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-10-16 12:55:21,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 5759 Invalid, 1967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 1708 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2022-10-16 12:55:21,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2022-10-16 12:55:21,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1388. [2022-10-16 12:55:21,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 989 states have (on average 1.3518705763397372) internal successors, (1337), 1061 states have internal predecessors, (1337), 268 states have call successors, (268), 75 states have call predecessors, (268), 75 states have return successors, (268), 264 states have call predecessors, (268), 268 states have call successors, (268) [2022-10-16 12:55:21,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1873 transitions. [2022-10-16 12:55:21,216 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1873 transitions. Word has length 101 [2022-10-16 12:55:21,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:55:21,217 INFO L495 AbstractCegarLoop]: Abstraction has 1388 states and 1873 transitions. [2022-10-16 12:55:21,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 12:55:21,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1873 transitions. [2022-10-16 12:55:21,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 12:55:21,221 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:55:21,222 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:55:21,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 12:55:21,222 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:55:21,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:55:21,223 INFO L85 PathProgramCache]: Analyzing trace with hash -247954084, now seen corresponding path program 1 times [2022-10-16 12:55:21,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:55:21,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288620373] [2022-10-16 12:55:21,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:55:21,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:55:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:22,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:55:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:22,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:22,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:55:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:22,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:22,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:22,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:22,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:55:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:22,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:22,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 12:55:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:22,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 12:55:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:22,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 12:55:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:22,497 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 12:55:22,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:55:22,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288620373] [2022-10-16 12:55:22,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288620373] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:55:22,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749731725] [2022-10-16 12:55:22,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:55:22,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:55:22,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:55:22,500 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) [2022-10-16 12:55:22,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 12:55:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:23,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 2874 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 12:55:23,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:55:23,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 12:55:23,308 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 12:55:23,327 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 12:55:23,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:55:23,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749731725] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:55:23,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:55:23,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-10-16 12:55:23,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257408734] [2022-10-16 12:55:23,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:55:23,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:55:23,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:55:23,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:55:23,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-10-16 12:55:23,331 INFO L87 Difference]: Start difference. First operand 1388 states and 1873 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:55:24,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:55:24,519 INFO L93 Difference]: Finished difference Result 1408 states and 1905 transitions. [2022-10-16 12:55:24,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 12:55:24,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2022-10-16 12:55:24,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:55:24,529 INFO L225 Difference]: With dead ends: 1408 [2022-10-16 12:55:24,530 INFO L226 Difference]: Without dead ends: 1407 [2022-10-16 12:55:24,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-10-16 12:55:24,532 INFO L413 NwaCegarLoop]: 1692 mSDtfsCounter, 64 mSDsluCounter, 6532 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 8224 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:55:24,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 8224 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 12:55:24,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2022-10-16 12:55:24,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1391. [2022-10-16 12:55:24,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 992 states have (on average 1.3518145161290323) internal successors, (1341), 1064 states have internal predecessors, (1341), 268 states have call successors, (268), 75 states have call predecessors, (268), 75 states have return successors, (268), 264 states have call predecessors, (268), 268 states have call successors, (268) [2022-10-16 12:55:24,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 1877 transitions. [2022-10-16 12:55:24,624 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 1877 transitions. Word has length 101 [2022-10-16 12:55:24,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:55:24,625 INFO L495 AbstractCegarLoop]: Abstraction has 1391 states and 1877 transitions. [2022-10-16 12:55:24,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:55:24,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 1877 transitions. [2022-10-16 12:55:24,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 12:55:24,627 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:55:24,628 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:55:24,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 12:55:24,843 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,SelfDestructingSolverStorable7 [2022-10-16 12:55:24,843 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting init_write_congestion_marksErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:55:24,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:55:24,844 INFO L85 PathProgramCache]: Analyzing trace with hash -247953892, now seen corresponding path program 1 times [2022-10-16 12:55:24,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:55:24,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697071427] [2022-10-16 12:55:24,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:55:24,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:55:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:25,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:55:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:25,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:26,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:55:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:26,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:26,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:26,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:26,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:55:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:26,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:26,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 12:55:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:26,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 12:55:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:26,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 12:55:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:26,085 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 12:55:26,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:55:26,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697071427] [2022-10-16 12:55:26,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697071427] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:55:26,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095279521] [2022-10-16 12:55:26,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:55:26,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:55:26,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:55:26,087 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) [2022-10-16 12:55:26,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 12:55:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:26,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 2876 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 12:55:26,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:55:26,853 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 12:55:26,876 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 12:55:26,894 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 12:55:26,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:55:26,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095279521] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:55:26,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:55:26,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-10-16 12:55:26,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156667020] [2022-10-16 12:55:26,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:55:26,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:55:26,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:55:26,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:55:26,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-10-16 12:55:26,897 INFO L87 Difference]: Start difference. First operand 1391 states and 1877 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:55:28,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:55:28,141 INFO L93 Difference]: Finished difference Result 1405 states and 1899 transitions. [2022-10-16 12:55:28,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 12:55:28,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2022-10-16 12:55:28,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:55:28,154 INFO L225 Difference]: With dead ends: 1405 [2022-10-16 12:55:28,155 INFO L226 Difference]: Without dead ends: 1404 [2022-10-16 12:55:28,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-10-16 12:55:28,158 INFO L413 NwaCegarLoop]: 1691 mSDtfsCounter, 57 mSDsluCounter, 6532 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 8223 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:55:28,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 8223 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 12:55:28,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2022-10-16 12:55:28,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1392. [2022-10-16 12:55:28,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 993 states have (on average 1.351460221550856) internal successors, (1342), 1065 states have internal predecessors, (1342), 268 states have call successors, (268), 75 states have call predecessors, (268), 75 states have return successors, (268), 264 states have call predecessors, (268), 268 states have call successors, (268) [2022-10-16 12:55:28,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1878 transitions. [2022-10-16 12:55:28,231 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1878 transitions. Word has length 101 [2022-10-16 12:55:28,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:55:28,232 INFO L495 AbstractCegarLoop]: Abstraction has 1392 states and 1878 transitions. [2022-10-16 12:55:28,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:55:28,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1878 transitions. [2022-10-16 12:55:28,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 12:55:28,236 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:55:28,237 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:55:28,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 12:55:28,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:55:28,451 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:55:28,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:55:28,452 INFO L85 PathProgramCache]: Analyzing trace with hash -247894502, now seen corresponding path program 1 times [2022-10-16 12:55:28,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:55:28,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028905087] [2022-10-16 12:55:28,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:55:28,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:55:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:29,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:55:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:29,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:29,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:55:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:29,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:29,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:29,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:29,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:55:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:29,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:29,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 12:55:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:29,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 12:55:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:29,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 12:55:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:29,646 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 12:55:29,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:55:29,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028905087] [2022-10-16 12:55:29,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028905087] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:55:29,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458683434] [2022-10-16 12:55:29,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:55:29,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:55:29,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:55:29,648 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) [2022-10-16 12:55:29,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 12:55:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:30,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 2874 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 12:55:30,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:55:30,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 12:55:30,457 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 12:55:30,475 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 12:55:30,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:55:30,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458683434] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:55:30,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:55:30,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-10-16 12:55:30,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509039538] [2022-10-16 12:55:30,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:55:30,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:55:30,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:55:30,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:55:30,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-10-16 12:55:30,478 INFO L87 Difference]: Start difference. First operand 1392 states and 1878 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:55:31,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:55:31,587 INFO L93 Difference]: Finished difference Result 1396 states and 1888 transitions. [2022-10-16 12:55:31,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:55:31,588 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2022-10-16 12:55:31,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:55:31,598 INFO L225 Difference]: With dead ends: 1396 [2022-10-16 12:55:31,598 INFO L226 Difference]: Without dead ends: 1395 [2022-10-16 12:55:31,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-10-16 12:55:31,600 INFO L413 NwaCegarLoop]: 1691 mSDtfsCounter, 47 mSDsluCounter, 6505 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 8196 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 12:55:31,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 8196 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 12:55:31,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2022-10-16 12:55:31,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1390. [2022-10-16 12:55:31,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 992 states have (on average 1.3508064516129032) internal successors, (1340), 1063 states have internal predecessors, (1340), 268 states have call successors, (268), 75 states have call predecessors, (268), 75 states have return successors, (268), 264 states have call predecessors, (268), 268 states have call successors, (268) [2022-10-16 12:55:31,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1876 transitions. [2022-10-16 12:55:31,666 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1876 transitions. Word has length 101 [2022-10-16 12:55:31,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:55:31,667 INFO L495 AbstractCegarLoop]: Abstraction has 1390 states and 1876 transitions. [2022-10-16 12:55:31,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:55:31,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1876 transitions. [2022-10-16 12:55:31,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 12:55:31,669 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:55:31,669 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:55:31,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 12:55:31,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:55:31,883 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting init_write_congestion_marksErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:55:31,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:55:31,884 INFO L85 PathProgramCache]: Analyzing trace with hash -247894310, now seen corresponding path program 1 times [2022-10-16 12:55:31,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:55:31,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236068679] [2022-10-16 12:55:31,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:55:31,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:55:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:55:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:32,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:33,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:55:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:33,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:33,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:33,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:33,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:55:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:33,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:33,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 12:55:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:33,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 12:55:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:33,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 12:55:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:33,063 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 12:55:33,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:55:33,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236068679] [2022-10-16 12:55:33,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236068679] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:55:33,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488788196] [2022-10-16 12:55:33,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:55:33,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:55:33,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:55:33,065 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) [2022-10-16 12:55:33,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 12:55:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:33,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 2876 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 12:55:33,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:55:33,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 12:55:33,778 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 12:55:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 12:55:33,797 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:55:33,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488788196] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:55:33,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:55:33,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-10-16 12:55:33,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57132424] [2022-10-16 12:55:33,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:55:33,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:55:33,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:55:33,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:55:33,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-10-16 12:55:33,802 INFO L87 Difference]: Start difference. First operand 1390 states and 1876 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:55:34,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:55:34,682 INFO L93 Difference]: Finished difference Result 1392 states and 1881 transitions. [2022-10-16 12:55:34,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:55:34,683 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2022-10-16 12:55:34,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:55:34,692 INFO L225 Difference]: With dead ends: 1392 [2022-10-16 12:55:34,692 INFO L226 Difference]: Without dead ends: 1391 [2022-10-16 12:55:34,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-10-16 12:55:34,694 INFO L413 NwaCegarLoop]: 1689 mSDtfsCounter, 39 mSDsluCounter, 6505 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 8194 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 12:55:34,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 8194 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 12:55:34,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2022-10-16 12:55:34,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 1386. [2022-10-16 12:55:34,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 989 states have (on average 1.3498483316481293) internal successors, (1335), 1059 states have internal predecessors, (1335), 268 states have call successors, (268), 75 states have call predecessors, (268), 75 states have return successors, (268), 264 states have call predecessors, (268), 268 states have call successors, (268) [2022-10-16 12:55:34,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1871 transitions. [2022-10-16 12:55:34,759 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1871 transitions. Word has length 101 [2022-10-16 12:55:34,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:55:34,760 INFO L495 AbstractCegarLoop]: Abstraction has 1386 states and 1871 transitions. [2022-10-16 12:55:34,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:55:34,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1871 transitions. [2022-10-16 12:55:34,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 12:55:34,762 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:55:34,762 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:55:34,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 12:55:34,975 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,SelfDestructingSolverStorable10 [2022-10-16 12:55:34,976 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:55:34,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:55:34,977 INFO L85 PathProgramCache]: Analyzing trace with hash 903358206, now seen corresponding path program 1 times [2022-10-16 12:55:34,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:55:34,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335631614] [2022-10-16 12:55:34,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:55:34,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:55:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:36,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:55:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:36,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:55:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:36,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:36,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:36,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:36,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:55:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:36,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:55:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:36,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 12:55:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:36,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 12:55:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:36,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 12:55:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:36,213 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 12:55:36,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:55:36,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335631614] [2022-10-16 12:55:36,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335631614] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:55:36,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:55:36,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 12:55:36,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390153856] [2022-10-16 12:55:36,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:55:36,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 12:55:36,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:55:36,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 12:55:36,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:55:36,218 INFO L87 Difference]: Start difference. First operand 1386 states and 1871 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:55:39,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:41,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:43,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:45,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:48,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:50,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:54,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:56,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:59,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:00,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:56:00,814 INFO L93 Difference]: Finished difference Result 1506 states and 2068 transitions. [2022-10-16 12:56:00,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 12:56:00,815 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2022-10-16 12:56:00,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:56:00,825 INFO L225 Difference]: With dead ends: 1506 [2022-10-16 12:56:00,825 INFO L226 Difference]: Without dead ends: 1505 [2022-10-16 12:56:00,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2022-10-16 12:56:00,828 INFO L413 NwaCegarLoop]: 1692 mSDtfsCounter, 453 mSDsluCounter, 9488 mSDsCounter, 0 mSdLazyCounter, 4010 mSolverCounterSat, 283 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 11180 SdHoareTripleChecker+Invalid, 4302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 4010 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:56:00,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 11180 Invalid, 4302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 4010 Invalid, 9 Unknown, 0 Unchecked, 24.2s Time] [2022-10-16 12:56:00,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2022-10-16 12:56:00,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1390. [2022-10-16 12:56:00,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 993 states have (on average 1.34944612286002) internal successors, (1340), 1063 states have internal predecessors, (1340), 268 states have call successors, (268), 75 states have call predecessors, (268), 75 states have return successors, (268), 264 states have call predecessors, (268), 268 states have call successors, (268) [2022-10-16 12:56:00,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1876 transitions. [2022-10-16 12:56:00,903 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1876 transitions. Word has length 102 [2022-10-16 12:56:00,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:56:00,903 INFO L495 AbstractCegarLoop]: Abstraction has 1390 states and 1876 transitions. [2022-10-16 12:56:00,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:56:00,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1876 transitions. [2022-10-16 12:56:00,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 12:56:00,906 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:56:00,906 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:56:00,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 12:56:00,906 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting init_write_congestion_marksErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:56:00,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:56:00,907 INFO L85 PathProgramCache]: Analyzing trace with hash 903364164, now seen corresponding path program 1 times [2022-10-16 12:56:00,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:56:00,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143174861] [2022-10-16 12:56:00,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:00,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:56:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:02,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:56:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:02,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:02,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:56:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:02,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:02,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:02,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:02,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:56:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:02,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:02,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 12:56:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:02,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 12:56:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:02,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 12:56:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:02,090 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 12:56:02,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:56:02,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143174861] [2022-10-16 12:56:02,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143174861] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:56:02,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:56:02,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 12:56:02,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10608759] [2022-10-16 12:56:02,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:56:02,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 12:56:02,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:56:02,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 12:56:02,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:56:02,103 INFO L87 Difference]: Start difference. First operand 1390 states and 1876 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:56:07,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:56:07,947 INFO L93 Difference]: Finished difference Result 1505 states and 2067 transitions. [2022-10-16 12:56:07,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 12:56:07,949 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2022-10-16 12:56:07,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:56:07,960 INFO L225 Difference]: With dead ends: 1505 [2022-10-16 12:56:07,960 INFO L226 Difference]: Without dead ends: 1504 [2022-10-16 12:56:07,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2022-10-16 12:56:07,962 INFO L413 NwaCegarLoop]: 1679 mSDtfsCounter, 441 mSDsluCounter, 9400 mSDsCounter, 0 mSdLazyCounter, 4018 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 11079 SdHoareTripleChecker+Invalid, 4308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 4018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-10-16 12:56:07,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 11079 Invalid, 4308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 4018 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-10-16 12:56:07,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2022-10-16 12:56:08,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1392. [2022-10-16 12:56:08,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 995 states have (on average 1.3487437185929647) internal successors, (1342), 1065 states have internal predecessors, (1342), 268 states have call successors, (268), 75 states have call predecessors, (268), 75 states have return successors, (268), 264 states have call predecessors, (268), 268 states have call successors, (268) [2022-10-16 12:56:08,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1878 transitions. [2022-10-16 12:56:08,028 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1878 transitions. Word has length 102 [2022-10-16 12:56:08,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:56:08,028 INFO L495 AbstractCegarLoop]: Abstraction has 1392 states and 1878 transitions. [2022-10-16 12:56:08,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:56:08,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1878 transitions. [2022-10-16 12:56:08,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 12:56:08,030 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:56:08,030 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:56:08,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 12:56:08,031 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:56:08,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:56:08,031 INFO L85 PathProgramCache]: Analyzing trace with hash 905205248, now seen corresponding path program 1 times [2022-10-16 12:56:08,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:56:08,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656963199] [2022-10-16 12:56:08,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:08,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:56:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:08,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:56:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:08,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:08,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:56:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:08,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:08,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:08,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:08,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:56:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:08,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:08,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 12:56:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:08,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 12:56:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:08,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 12:56:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:08,823 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 12:56:08,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:56:08,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656963199] [2022-10-16 12:56:08,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656963199] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:56:08,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:56:08,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:56:08,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883448704] [2022-10-16 12:56:08,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:56:08,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:56:08,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:56:08,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:56:08,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:56:08,826 INFO L87 Difference]: Start difference. First operand 1392 states and 1878 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:56:11,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:16,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:18,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:20,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:21,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:56:21,425 INFO L93 Difference]: Finished difference Result 1504 states and 2066 transitions. [2022-10-16 12:56:21,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:56:21,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2022-10-16 12:56:21,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:56:21,433 INFO L225 Difference]: With dead ends: 1504 [2022-10-16 12:56:21,434 INFO L226 Difference]: Without dead ends: 1503 [2022-10-16 12:56:21,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-16 12:56:21,435 INFO L413 NwaCegarLoop]: 1694 mSDtfsCounter, 370 mSDsluCounter, 5754 mSDsCounter, 0 mSdLazyCounter, 2468 mSolverCounterSat, 259 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 7448 SdHoareTripleChecker+Invalid, 2731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 2468 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:56:21,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 7448 Invalid, 2731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 2468 Invalid, 4 Unknown, 0 Unchecked, 12.4s Time] [2022-10-16 12:56:21,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2022-10-16 12:56:21,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1389. [2022-10-16 12:56:21,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1389 states, 993 states have (on average 1.3484390735146021) internal successors, (1339), 1062 states have internal predecessors, (1339), 268 states have call successors, (268), 75 states have call predecessors, (268), 75 states have return successors, (268), 264 states have call predecessors, (268), 268 states have call successors, (268) [2022-10-16 12:56:21,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 1875 transitions. [2022-10-16 12:56:21,503 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 1875 transitions. Word has length 102 [2022-10-16 12:56:21,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:56:21,504 INFO L495 AbstractCegarLoop]: Abstraction has 1389 states and 1875 transitions. [2022-10-16 12:56:21,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:56:21,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 1875 transitions. [2022-10-16 12:56:21,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 12:56:21,506 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:56:21,506 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:56:21,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 12:56:21,507 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting init_write_congestion_marksErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:56:21,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:56:21,507 INFO L85 PathProgramCache]: Analyzing trace with hash 905211206, now seen corresponding path program 1 times [2022-10-16 12:56:21,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:56:21,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474241981] [2022-10-16 12:56:21,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:21,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:56:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:22,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:56:22,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:22,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:22,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:56:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:22,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:22,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:22,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:22,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:56:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:22,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:22,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 12:56:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:22,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 12:56:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:22,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 12:56:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:22,198 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 12:56:22,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:56:22,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474241981] [2022-10-16 12:56:22,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474241981] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:56:22,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:56:22,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:56:22,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197560448] [2022-10-16 12:56:22,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:56:22,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:56:22,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:56:22,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:56:22,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:56:22,201 INFO L87 Difference]: Start difference. First operand 1389 states and 1875 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:56:27,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:28,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:56:28,152 INFO L93 Difference]: Finished difference Result 1503 states and 2065 transitions. [2022-10-16 12:56:28,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:56:28,153 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2022-10-16 12:56:28,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:56:28,162 INFO L225 Difference]: With dead ends: 1503 [2022-10-16 12:56:28,163 INFO L226 Difference]: Without dead ends: 1502 [2022-10-16 12:56:28,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-16 12:56:28,164 INFO L413 NwaCegarLoop]: 1692 mSDtfsCounter, 364 mSDsluCounter, 5756 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 263 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 7448 SdHoareTripleChecker+Invalid, 2735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-10-16 12:56:28,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 7448 Invalid, 2735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 2471 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-10-16 12:56:28,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2022-10-16 12:56:28,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1384. [2022-10-16 12:56:28,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 989 states have (on average 1.3478260869565217) internal successors, (1333), 1057 states have internal predecessors, (1333), 268 states have call successors, (268), 75 states have call predecessors, (268), 75 states have return successors, (268), 264 states have call predecessors, (268), 268 states have call successors, (268) [2022-10-16 12:56:28,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1869 transitions. [2022-10-16 12:56:28,237 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1869 transitions. Word has length 102 [2022-10-16 12:56:28,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:56:28,238 INFO L495 AbstractCegarLoop]: Abstraction has 1384 states and 1869 transitions. [2022-10-16 12:56:28,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:56:28,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1869 transitions. [2022-10-16 12:56:28,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 12:56:28,240 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:56:28,241 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-16 12:56:28,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 12:56:28,241 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:56:28,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:56:28,242 INFO L85 PathProgramCache]: Analyzing trace with hash -509911408, now seen corresponding path program 1 times [2022-10-16 12:56:28,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:56:28,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584891153] [2022-10-16 12:56:28,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:28,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:56:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:29,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:56:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:29,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:29,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:56:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:29,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:29,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:29,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:56:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:29,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:29,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 12:56:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:29,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 12:56:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:29,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 12:56:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:29,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 12:56:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:29,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 12:56:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:29,290 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-16 12:56:29,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:56:29,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584891153] [2022-10-16 12:56:29,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584891153] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:56:29,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531789643] [2022-10-16 12:56:29,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:29,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:56:29,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:56:29,294 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) [2022-10-16 12:56:29,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 12:56:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:29,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 2800 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 12:56:29,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:56:30,070 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 12:56:30,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:56:30,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531789643] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:56:30,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:56:30,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-10-16 12:56:30,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091755601] [2022-10-16 12:56:30,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:56:30,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:56:30,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:56:30,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:56:30,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:56:30,073 INFO L87 Difference]: Start difference. First operand 1384 states and 1869 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-16 12:56:30,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:56:30,233 INFO L93 Difference]: Finished difference Result 2997 states and 4112 transitions. [2022-10-16 12:56:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:56:30,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 105 [2022-10-16 12:56:30,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:56:30,243 INFO L225 Difference]: With dead ends: 2997 [2022-10-16 12:56:30,243 INFO L226 Difference]: Without dead ends: 1644 [2022-10-16 12:56:30,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-10-16 12:56:30,249 INFO L413 NwaCegarLoop]: 1886 mSDtfsCounter, 157 mSDsluCounter, 5473 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 7359 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:56:30,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 7359 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:56:30,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2022-10-16 12:56:30,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1388. [2022-10-16 12:56:30,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 992 states have (on average 1.346774193548387) internal successors, (1336), 1060 states have internal predecessors, (1336), 268 states have call successors, (268), 75 states have call predecessors, (268), 76 states have return successors, (270), 265 states have call predecessors, (270), 268 states have call successors, (270) [2022-10-16 12:56:30,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1874 transitions. [2022-10-16 12:56:30,324 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1874 transitions. Word has length 105 [2022-10-16 12:56:30,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:56:30,325 INFO L495 AbstractCegarLoop]: Abstraction has 1388 states and 1874 transitions. [2022-10-16 12:56:30,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-16 12:56:30,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1874 transitions. [2022-10-16 12:56:30,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 12:56:30,327 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:56:30,328 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-16 12:56:30,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 12:56:30,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 12:56:30,543 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:56:30,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:56:30,544 INFO L85 PathProgramCache]: Analyzing trace with hash 377592273, now seen corresponding path program 1 times [2022-10-16 12:56:30,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:56:30,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861914340] [2022-10-16 12:56:30,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:30,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:56:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:31,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:56:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:31,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:31,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:56:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:31,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:31,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:31,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:31,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:56:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:31,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:31,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 12:56:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:31,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 12:56:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:31,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 12:56:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:31,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 12:56:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:31,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 12:56:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:31,582 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-16 12:56:31,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:56:31,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861914340] [2022-10-16 12:56:31,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861914340] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:56:31,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502040111] [2022-10-16 12:56:31,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:31,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:56:31,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:56:31,585 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) [2022-10-16 12:56:31,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 12:56:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:32,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 2800 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 12:56:32,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:56:32,360 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 12:56:32,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:56:32,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502040111] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:56:32,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:56:32,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 9 [2022-10-16 12:56:32,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113521976] [2022-10-16 12:56:32,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:56:32,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 12:56:32,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:56:32,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 12:56:32,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:56:32,363 INFO L87 Difference]: Start difference. First operand 1388 states and 1874 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 12:56:32,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:56:32,637 INFO L93 Difference]: Finished difference Result 2800 states and 3782 transitions. [2022-10-16 12:56:32,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 12:56:32,638 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 105 [2022-10-16 12:56:32,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:56:32,646 INFO L225 Difference]: With dead ends: 2800 [2022-10-16 12:56:32,646 INFO L226 Difference]: Without dead ends: 1411 [2022-10-16 12:56:32,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-10-16 12:56:32,652 INFO L413 NwaCegarLoop]: 1693 mSDtfsCounter, 29 mSDsluCounter, 10129 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 11822 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:56:32,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 11822 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:56:32,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1411 states. [2022-10-16 12:56:32,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1411 to 1405. [2022-10-16 12:56:32,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1004 states have (on average 1.342629482071713) internal successors, (1348), 1072 states have internal predecessors, (1348), 270 states have call successors, (270), 78 states have call predecessors, (270), 79 states have return successors, (272), 267 states have call predecessors, (272), 270 states have call successors, (272) [2022-10-16 12:56:32,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1890 transitions. [2022-10-16 12:56:32,719 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1890 transitions. Word has length 105 [2022-10-16 12:56:32,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:56:32,720 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 1890 transitions. [2022-10-16 12:56:32,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 12:56:32,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1890 transitions. [2022-10-16 12:56:32,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 12:56:32,722 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:56:32,722 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:56:32,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 12:56:32,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:56:32,939 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:56:32,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:56:32,940 INFO L85 PathProgramCache]: Analyzing trace with hash -683025475, now seen corresponding path program 1 times [2022-10-16 12:56:32,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:56:32,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896249772] [2022-10-16 12:56:32,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:32,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:56:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:56:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:56:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 12:56:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-16 12:56:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 12:56:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 12:56:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 12:56:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 12:56:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-10-16 12:56:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,580 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 12:56:34,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:56:34,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896249772] [2022-10-16 12:56:34,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896249772] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:56:34,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914853815] [2022-10-16 12:56:34,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:34,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:56:34,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:56:34,583 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) [2022-10-16 12:56:34,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 12:56:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:35,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 2837 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-16 12:56:35,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:56:35,409 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:56:35,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:56:35,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914853815] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:56:35,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:56:35,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 12 [2022-10-16 12:56:35,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85353870] [2022-10-16 12:56:35,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:56:35,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 12:56:35,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:56:35,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 12:56:35,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:56:35,412 INFO L87 Difference]: Start difference. First operand 1405 states and 1890 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 12:56:35,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:56:35,807 INFO L93 Difference]: Finished difference Result 2829 states and 3812 transitions. [2022-10-16 12:56:35,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 12:56:35,807 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 2 states have call successors, (14) Word has length 112 [2022-10-16 12:56:35,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:56:35,814 INFO L225 Difference]: With dead ends: 2829 [2022-10-16 12:56:35,814 INFO L226 Difference]: Without dead ends: 1442 [2022-10-16 12:56:35,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 139 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-10-16 12:56:35,820 INFO L413 NwaCegarLoop]: 1698 mSDtfsCounter, 49 mSDsluCounter, 15229 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 16927 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:56:35,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 16927 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:56:35,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2022-10-16 12:56:35,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1431. [2022-10-16 12:56:35,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1021 states have (on average 1.3369245837414299) internal successors, (1365), 1089 states have internal predecessors, (1365), 274 states have call successors, (274), 83 states have call predecessors, (274), 84 states have return successors, (276), 271 states have call predecessors, (276), 274 states have call successors, (276) [2022-10-16 12:56:35,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1915 transitions. [2022-10-16 12:56:35,891 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1915 transitions. Word has length 112 [2022-10-16 12:56:35,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:56:35,891 INFO L495 AbstractCegarLoop]: Abstraction has 1431 states and 1915 transitions. [2022-10-16 12:56:35,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (14), 6 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 12:56:35,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1915 transitions. [2022-10-16 12:56:35,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-10-16 12:56:35,894 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:56:35,895 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2022-10-16 12:56:35,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 12:56:36,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 12:56:36,109 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_write_congestion_marksErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_write_congestion_marksErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2022-10-16 12:56:36,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:56:36,110 INFO L85 PathProgramCache]: Analyzing trace with hash -757716219, now seen corresponding path program 2 times [2022-10-16 12:56:36,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:56:36,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854447774] [2022-10-16 12:56:36,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:36,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:56:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:47,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 12:56:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:48,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:48,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:56:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:48,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 12:56:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:48,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:48,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:49,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:49,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:56:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:49,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 12:56:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:49,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:49,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 12:56:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:49,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-16 12:56:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:49,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 12:56:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:49,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 12:56:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:49,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 12:56:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:49,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 12:56:49,638 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.CCInterpolator.computeInterpolants(CCInterpolator.java:537) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:327) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:154) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:260) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:237) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:848) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:773) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:352) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:284) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:327) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:379) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-10-16 12:56:49,644 INFO L158 Benchmark]: Toolchain (without parser) took 138927.76ms. Allocated memory was 153.1MB in the beginning and 722.5MB in the end (delta: 569.4MB). Free memory was 114.6MB in the beginning and 604.3MB in the end (delta: -489.7MB). Peak memory consumption was 483.6MB. Max. memory is 8.0GB. [2022-10-16 12:56:49,645 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 153.1MB. Free memory is still 122.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 12:56:49,645 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3434.36ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 114.4MB in the beginning and 120.6MB in the end (delta: -6.2MB). Peak memory consumption was 98.6MB. Max. memory is 8.0GB. [2022-10-16 12:56:49,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 310.65ms. Allocated memory is still 199.2MB. Free memory was 120.6MB in the beginning and 96.5MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-10-16 12:56:49,647 INFO L158 Benchmark]: Boogie Preprocessor took 329.20ms. Allocated memory is still 199.2MB. Free memory was 96.5MB in the beginning and 122.2MB in the end (delta: -25.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-10-16 12:56:49,648 INFO L158 Benchmark]: RCFGBuilder took 4543.30ms. Allocated memory was 199.2MB in the beginning and 315.6MB in the end (delta: 116.4MB). Free memory was 122.2MB in the beginning and 114.8MB in the end (delta: 7.3MB). Peak memory consumption was 133.7MB. Max. memory is 8.0GB. [2022-10-16 12:56:49,650 INFO L158 Benchmark]: TraceAbstraction took 130296.64ms. Allocated memory was 315.6MB in the beginning and 722.5MB in the end (delta: 406.8MB). Free memory was 113.8MB in the beginning and 604.3MB in the end (delta: -490.5MB). Peak memory consumption was 320.1MB. Max. memory is 8.0GB. [2022-10-16 12:56:49,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 153.1MB. Free memory is still 122.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 3434.36ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 114.4MB in the beginning and 120.6MB in the end (delta: -6.2MB). Peak memory consumption was 98.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 310.65ms. Allocated memory is still 199.2MB. Free memory was 120.6MB in the beginning and 96.5MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 329.20ms. Allocated memory is still 199.2MB. Free memory was 96.5MB in the beginning and 122.2MB in the end (delta: -25.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * RCFGBuilder took 4543.30ms. Allocated memory was 199.2MB in the beginning and 315.6MB in the end (delta: 116.4MB). Free memory was 122.2MB in the beginning and 114.8MB in the end (delta: 7.3MB). Peak memory consumption was 133.7MB. Max. memory is 8.0GB. * TraceAbstraction took 130296.64ms. Allocated memory was 315.6MB in the beginning and 722.5MB in the end (delta: 406.8MB). Free memory was 113.8MB in the beginning and 604.3MB in the end (delta: -490.5MB). Peak memory consumption was 320.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.CCInterpolator.computeInterpolants(CCInterpolator.java:537) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-10-16 12:56:49,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...