/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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:48:19,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:48:19,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:48:19,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:48:19,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:48:19,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:48:19,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:48:19,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:48:19,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:48:19,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:48:19,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:48:19,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:48:19,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:48:19,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:48:19,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:48:19,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:48:19,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:48:19,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:48:19,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:48:19,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:48:19,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:48:19,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:48:19,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:48:19,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:48:19,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:48:19,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:48:19,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:48:19,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:48:19,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:48:19,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:48:19,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:48:19,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:48:19,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:48:19,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:48:19,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:48:19,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:48:19,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:48:19,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:48:19,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:48:19,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:48:19,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:48:19,656 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 13:48:19,712 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:48:19,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:48:19,713 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:48:19,713 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:48:19,715 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:48:19,715 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:48:19,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:48:19,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:48:19,719 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:48:19,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:48:19,720 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:48:19,721 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:48:19,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:48:19,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:48:19,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:48:19,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:48:19,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:48:19,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:48:19,722 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:48:19,722 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:48:19,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:48:19,722 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:48:19,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:48:19,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:48:19,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:48:19,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:48:19,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:48:19,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:48:19,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:48:19,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:48:19,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:48:19,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:48:19,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:48:19,725 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:48:20,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:48:20,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:48:20,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:48:20,194 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:48:20,195 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:48:20,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c [2022-10-16 13:48:20,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1eb40f73/4c97c1ea9bc4488293d908bcdbe42cf8/FLAG11a47fd16 [2022-10-16 13:48:21,390 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:48:21,391 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c [2022-10-16 13:48:21,454 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1eb40f73/4c97c1ea9bc4488293d908bcdbe42cf8/FLAG11a47fd16 [2022-10-16 13:48:21,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1eb40f73/4c97c1ea9bc4488293d908bcdbe42cf8 [2022-10-16 13:48:21,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:48:21,841 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:48:21,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:48:21,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:48:21,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:48:21,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:48:21" (1/1) ... [2022-10-16 13:48:21,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bf642fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:21, skipping insertion in model container [2022-10-16 13:48:21,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:48:21" (1/1) ... [2022-10-16 13:48:21,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:48:22,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:48:25,083 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[304925,304938] [2022-10-16 13:48:25,133 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[305499,305512] [2022-10-16 13:48:25,139 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[306698,306711] [2022-10-16 13:48:25,145 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[307406,307419] [2022-10-16 13:48:25,149 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[307847,307860] [2022-10-16 13:48:25,154 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[308079,308092] [2022-10-16 13:48:25,164 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[308657,308670] [2022-10-16 13:48:25,172 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[309247,309260] [2022-10-16 13:48:25,177 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[309664,309677] [2022-10-16 13:48:25,183 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[310061,310074] [2022-10-16 13:48:25,188 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[310296,310309] [2022-10-16 13:48:25,193 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[311044,311057] [2022-10-16 13:48:25,199 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[311465,311478] [2022-10-16 13:48:25,209 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[312092,312105] [2022-10-16 13:48:25,214 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[312507,312520] [2022-10-16 13:48:25,220 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[313151,313164] [2022-10-16 13:48:25,225 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[313881,313894] [2022-10-16 13:48:25,232 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[314717,314730] [2022-10-16 13:48:25,239 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[316063,316076] [2022-10-16 13:48:25,244 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[316461,316474] [2022-10-16 13:48:25,250 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[317018,317031] [2022-10-16 13:48:25,255 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[317401,317414] [2022-10-16 13:48:25,260 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[318017,318030] [2022-10-16 13:48:25,266 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[318591,318604] [2022-10-16 13:48:25,272 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[319504,319517] [2022-10-16 13:48:25,278 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[319895,319908] [2022-10-16 13:48:25,283 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[320124,320137] [2022-10-16 13:48:25,287 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[320530,320543] [2022-10-16 13:48:25,299 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[321387,321400] [2022-10-16 13:48:25,305 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[321794,321807] [2022-10-16 13:48:25,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:48:25,365 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:48:25,864 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[304925,304938] [2022-10-16 13:48:25,865 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[305499,305512] [2022-10-16 13:48:25,865 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[306698,306711] [2022-10-16 13:48:25,866 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[307406,307419] [2022-10-16 13:48:25,867 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[307847,307860] [2022-10-16 13:48:25,867 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[308079,308092] [2022-10-16 13:48:25,868 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[308657,308670] [2022-10-16 13:48:25,868 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[309247,309260] [2022-10-16 13:48:25,869 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[309664,309677] [2022-10-16 13:48:25,869 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[310061,310074] [2022-10-16 13:48:25,870 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[310296,310309] [2022-10-16 13:48:25,871 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[311044,311057] [2022-10-16 13:48:25,871 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[311465,311478] [2022-10-16 13:48:25,872 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[312092,312105] [2022-10-16 13:48:25,872 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[312507,312520] [2022-10-16 13:48:25,873 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[313151,313164] [2022-10-16 13:48:25,873 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[313881,313894] [2022-10-16 13:48:25,874 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[314717,314730] [2022-10-16 13:48:25,876 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[316063,316076] [2022-10-16 13:48:25,877 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[316461,316474] [2022-10-16 13:48:25,878 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[317018,317031] [2022-10-16 13:48:25,879 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[317401,317414] [2022-10-16 13:48:25,879 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[318017,318030] [2022-10-16 13:48:25,880 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[318591,318604] [2022-10-16 13:48:25,881 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[319504,319517] [2022-10-16 13:48:25,882 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[319895,319908] [2022-10-16 13:48:25,882 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[320124,320137] [2022-10-16 13:48:25,883 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[320530,320543] [2022-10-16 13:48:25,884 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[321387,321400] [2022-10-16 13:48:25,884 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-multiproperty/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c[321794,321807] [2022-10-16 13:48:25,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:48:26,151 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:48:26,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:26 WrapperNode [2022-10-16 13:48:26,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:48:26,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:48:26,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:48:26,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:48:26,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:26" (1/1) ... [2022-10-16 13:48:26,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:26" (1/1) ... [2022-10-16 13:48:26,498 INFO L138 Inliner]: procedures = 580, calls = 1524, calls flagged for inlining = 204, calls inlined = 120, statements flattened = 3040 [2022-10-16 13:48:26,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:48:26,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:48:26,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:48:26,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:48:26,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:26" (1/1) ... [2022-10-16 13:48:26,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:26" (1/1) ... [2022-10-16 13:48:26,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:26" (1/1) ... [2022-10-16 13:48:26,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:26" (1/1) ... [2022-10-16 13:48:26,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:26" (1/1) ... [2022-10-16 13:48:26,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:26" (1/1) ... [2022-10-16 13:48:26,734 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:26" (1/1) ... [2022-10-16 13:48:26,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:26" (1/1) ... [2022-10-16 13:48:26,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:48:26,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:48:26,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:48:26,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:48:26,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:26" (1/1) ... [2022-10-16 13:48:26,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:48:26,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:48:26,827 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 13:48:26,851 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 13:48:26,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2022-10-16 13:48:26,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2022-10-16 13:48:26,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-10-16 13:48:26,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-10-16 13:48:26,908 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_complete_request [2022-10-16 13:48:26,908 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_net_sock [2022-10-16 13:48:26,908 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_net_sock [2022-10-16 13:48:26,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:48:26,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:48:26,909 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2022-10-16 13:48:26,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-10-16 13:48:26,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-10-16 13:48:26,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_del_gendisk [2022-10-16 13:48:26,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_del_gendisk [2022-10-16 13:48:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-16 13:48:26,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-16 13:48:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_alignment_offset [2022-10-16 13:48:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_arch_io [2022-10-16 13:48:26,913 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_arch_io [2022-10-16 13:48:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_stop_hw_queues [2022-10-16 13:48:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-10-16 13:48:26,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-10-16 13:48:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_check_driver_offered_feature [2022-10-16 13:48:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure init_vq [2022-10-16 13:48:26,914 INFO L138 BoogieDeclarations]: Found implementation of procedure init_vq [2022-10-16 13:48:26,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-10-16 13:48:26,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-10-16 13:48:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_opt [2022-10-16 13:48:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_get_buf [2022-10-16 13:48:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_config_changed [2022-10-16 13:48:26,915 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_config_changed [2022-10-16 13:48:26,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-16 13:48:26,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-10-16 13:48:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2022-10-16 13:48:26,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-16 13:48:26,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-16 13:48:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-10-16 13:48:26,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-10-16 13:48:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_alloc_irq [2022-10-16 13:48:26,918 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_alloc_irq [2022-10-16 13:48:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_physical_block_size [2022-10-16 13:48:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:48:26,918 INFO L130 BoogieDeclarations]: Found specification of procedure bio_map_kern [2022-10-16 13:48:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_rcu_update_lock [2022-10-16 13:48:26,919 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_rcu_update_lock [2022-10-16 13:48:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_get_cache_mode [2022-10-16 13:48:26,919 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_get_cache_mode [2022-10-16 13:48:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_disable_cb [2022-10-16 13:48:26,919 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-16 13:48:26,920 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-16 13:48:26,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-10-16 13:48:26,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-10-16 13:48:26,921 INFO L130 BoogieDeclarations]: Found specification of procedure string_get_size [2022-10-16 13:48:26,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 13:48:26,921 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_tag_set [2022-10-16 13:48:26,921 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_update_cache_mode [2022-10-16 13:48:26,921 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_update_cache_mode [2022-10-16 13:48:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-16 13:48:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_is_broken [2022-10-16 13:48:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 13:48:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_blk_cleanup_queue [2022-10-16 13:48:26,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_blk_cleanup_queue [2022-10-16 13:48:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-10-16 13:48:26,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-10-16 13:48:26,925 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-10-16 13:48:26,926 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_flush [2022-10-16 13:48:26,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-10-16 13:48:26,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-10-16 13:48:26,934 INFO L130 BoogieDeclarations]: Found specification of procedure ida_simple_remove [2022-10-16 13:48:26,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:48:26,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-10-16 13:48:26,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-10-16 13:48:26,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-10-16 13:48:26,937 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_block_queue [2022-10-16 13:48:26,937 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_block_queue [2022-10-16 13:48:26,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-10-16 13:48:26,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-10-16 13:48:26,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-16 13:48:26,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-16 13:48:26,937 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-10-16 13:48:26,938 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_alloc_tag_set [2022-10-16 13:48:26,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-10-16 13:48:26,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-10-16 13:48:26,938 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_locking_spinlock [2022-10-16 13:48:26,938 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_locking_spinlock [2022-10-16 13:48:26,938 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_min [2022-10-16 13:48:26,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-10-16 13:48:26,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-10-16 13:48:26,939 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread8 [2022-10-16 13:48:26,939 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread8 [2022-10-16 13:48:26,939 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_block_genhd [2022-10-16 13:48:26,939 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_block_genhd [2022-10-16 13:48:26,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:48:26,939 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_rcu_update_lock_sched [2022-10-16 13:48:26,939 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_rcu_update_lock_sched [2022-10-16 13:48:26,940 INFO L130 BoogieDeclarations]: Found specification of procedure revalidate_disk [2022-10-16 13:48:26,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:48:26,940 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_streq [2022-10-16 13:48:26,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-16 13:48:26,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-16 13:48:26,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:48:26,940 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2022-10-16 13:48:26,940 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_bounce_limit [2022-10-16 13:48:26,940 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 13:48:26,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 13:48:26,941 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2022-10-16 13:48:26,941 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2022-10-16 13:48:26,941 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2022-10-16 13:48:26,941 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_cache_type_store [2022-10-16 13:48:26,941 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_cache_type_store [2022-10-16 13:48:26,941 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2022-10-16 13:48:26,941 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-10-16 13:48:26,941 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2022-10-16 13:48:26,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2022-10-16 13:48:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-10-16 13:48:26,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-10-16 13:48:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:48:26,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:48:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-16 13:48:26,942 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-16 13:48:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_rcu_update_lock_bh [2022-10-16 13:48:26,943 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_rcu_update_lock_bh [2022-10-16 13:48:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_enable_cb [2022-10-16 13:48:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 13:48:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 13:48:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-16 13:48:26,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-16 13:48:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread32 [2022-10-16 13:48:26,944 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread32 [2022-10-16 13:48:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2022-10-16 13:48:26,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2022-10-16 13:48:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-10-16 13:48:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2022-10-16 13:48:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_init_queue [2022-10-16 13:48:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-10-16 13:48:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-10-16 13:48:26,945 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-10-16 13:48:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread16 [2022-10-16 13:48:26,945 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread16 [2022-10-16 13:48:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:48:26,945 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:48:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure __compiletime_assert_322 [2022-10-16 13:48:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_alloc_usb_lock [2022-10-16 13:48:26,946 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_alloc_usb_lock [2022-10-16 13:48:26,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-10-16 13:48:26,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-10-16 13:48:26,946 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_fs_sysfs [2022-10-16 13:48:26,946 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_fs_sysfs [2022-10-16 13:48:26,946 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2022-10-16 13:48:26,946 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2022-10-16 13:48:26,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-10-16 13:48:26,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-10-16 13:48:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread64 [2022-10-16 13:48:26,947 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread64 [2022-10-16 13:48:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:48:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-10-16 13:48:26,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-10-16 13:48:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure blk_execute_rq [2022-10-16 13:48:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_block_request__double_get [2022-10-16 13:48:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_block_request__double_get [2022-10-16 13:48:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_rq_to_pdu [2022-10-16 13:48:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_rq_to_pdu [2022-10-16 13:48:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:48:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_usb_coherent [2022-10-16 13:48:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_usb_coherent [2022-10-16 13:48:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_locking_rwlock [2022-10-16 13:48:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_locking_rwlock [2022-10-16 13:48:26,949 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2022-10-16 13:48:26,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:48:26,949 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_drivers_base_class [2022-10-16 13:48:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_drivers_base_class [2022-10-16 13:48:26,949 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2022-10-16 13:48:26,949 INFO L130 BoogieDeclarations]: Found specification of procedure virtio32_to_cpu [2022-10-16 13:48:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio32_to_cpu [2022-10-16 13:48:26,949 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-10-16 13:48:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_module [2022-10-16 13:48:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_module [2022-10-16 13:48:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-10-16 13:48:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-10-16 13:48:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-10-16 13:48:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-10-16 13:48:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-10-16 13:48:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_start_stopped_hw_queues [2022-10-16 13:48:26,951 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2022-10-16 13:48:26,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-10-16 13:48:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-10-16 13:48:26,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-10-16 13:48:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-10-16 13:48:26,951 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-10-16 13:48:26,951 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_fs_char_dev [2022-10-16 13:48:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_fs_char_dev [2022-10-16 13:48:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_usb_gadget [2022-10-16 13:48:26,953 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_usb_gadget [2022-10-16 13:48:26,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-10-16 13:48:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-10-16 13:48:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 13:48:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_net_rtnetlink [2022-10-16 13:48:26,961 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_net_rtnetlink [2022-10-16 13:48:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_blk_ioctl [2022-10-16 13:48:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:48:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-10-16 13:48:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-10-16 13:48:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 13:48:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 13:48:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_virtio_blk_vq [2022-10-16 13:48:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_virtio_blk_vq [2022-10-16 13:48:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_block_request [2022-10-16 13:48:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_block_request [2022-10-16 13:48:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-10-16 13:48:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-10-16 13:48:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure ida_simple_get [2022-10-16 13:48:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_lib_idr [2022-10-16 13:48:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_lib_idr [2022-10-16 13:48:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_usb_urb [2022-10-16 13:48:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_usb_urb [2022-10-16 13:48:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_virtio_driver [2022-10-16 13:48:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure register_virtio_driver [2022-10-16 13:48:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure set_disk_ro [2022-10-16 13:48:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-16 13:48:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-16 13:48:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2022-10-16 13:48:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2022-10-16 13:48:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2022-10-16 13:48:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent_env [2022-10-16 13:48:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-16 13:48:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-16 13:48:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-10-16 13:48:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-10-16 13:48:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_mmc_sdio_func [2022-10-16 13:48:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_mmc_sdio_func [2022-10-16 13:48:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_end_request [2022-10-16 13:48:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-10-16 13:48:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_put_disk [2022-10-16 13:48:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_put_disk [2022-10-16 13:48:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2022-10-16 13:48:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:48:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_device_ready [2022-10-16 13:48:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_device_ready [2022-10-16 13:48:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_linux_kernel_rcu_srcu [2022-10-16 13:48:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_linux_kernel_rcu_srcu [2022-10-16 13:48:27,652 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:48:27,658 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:48:30,282 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:48:30,301 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:48:30,302 INFO L300 CfgBuilder]: Removed 14 assume(true) statements. [2022-10-16 13:48:30,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:48:30 BoogieIcfgContainer [2022-10-16 13:48:30,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:48:30,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:48:30,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:48:30,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:48:30,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:48:21" (1/3) ... [2022-10-16 13:48:30,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a6be4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:48:30, skipping insertion in model container [2022-10-16 13:48:30,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:26" (2/3) ... [2022-10-16 13:48:30,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a6be4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:48:30, skipping insertion in model container [2022-10-16 13:48:30,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:48:30" (3/3) ... [2022-10-16 13:48:30,316 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.c [2022-10-16 13:48:30,338 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:48:30,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 13:48:30,431 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:48:30,439 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;@5fb00e98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:48:30,440 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 13:48:30,450 INFO L276 IsEmpty]: Start isEmpty. Operand has 1142 states, 780 states have (on average 1.2820512820512822) internal successors, (1000), 828 states have internal predecessors, (1000), 271 states have call successors, (271), 85 states have call predecessors, (271), 85 states have return successors, (271), 268 states have call predecessors, (271), 271 states have call successors, (271) [2022-10-16 13:48:30,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-10-16 13:48:30,479 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:30,481 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 13:48:30,481 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting virtblk_cache_type_storeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:30,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:30,488 INFO L85 PathProgramCache]: Analyzing trace with hash -2027639058, now seen corresponding path program 1 times [2022-10-16 13:48:30,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:30,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059058874] [2022-10-16 13:48:30,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:30,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:48:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 13:48:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:48:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 13:48:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:48:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:48:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 13:48:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:48:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 13:48:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 13:48:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 13:48:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 13:48:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-16 13:48:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:48:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-16 13:48:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:31,577 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-10-16 13:48:31,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:31,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059058874] [2022-10-16 13:48:31,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059058874] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:48:31,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:48:31,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:48:31,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791557917] [2022-10-16 13:48:31,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:48:31,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:48:31,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:31,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:48:31,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:48:31,642 INFO L87 Difference]: Start difference. First operand has 1142 states, 780 states have (on average 1.2820512820512822) internal successors, (1000), 828 states have internal predecessors, (1000), 271 states have call successors, (271), 85 states have call predecessors, (271), 85 states have return successors, (271), 268 states have call predecessors, (271), 271 states have call successors, (271) Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-16 13:48:33,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:33,585 INFO L93 Difference]: Finished difference Result 2139 states and 3062 transitions. [2022-10-16 13:48:33,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:48:33,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2022-10-16 13:48:33,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:33,614 INFO L225 Difference]: With dead ends: 2139 [2022-10-16 13:48:33,614 INFO L226 Difference]: Without dead ends: 784 [2022-10-16 13:48:33,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:48:33,637 INFO L413 NwaCegarLoop]: 1159 mSDtfsCounter, 1215 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 899 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 2237 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 899 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:33,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 2237 Invalid, 1606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [899 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 13:48:33,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2022-10-16 13:48:33,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 748. [2022-10-16 13:48:33,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 536 states have (on average 1.251865671641791) internal successors, (671), 561 states have internal predecessors, (671), 154 states have call successors, (154), 42 states have call predecessors, (154), 42 states have return successors, (154), 152 states have call predecessors, (154), 154 states have call successors, (154) [2022-10-16 13:48:33,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 979 transitions. [2022-10-16 13:48:33,819 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 979 transitions. Word has length 152 [2022-10-16 13:48:33,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:33,820 INFO L495 AbstractCegarLoop]: Abstraction has 748 states and 979 transitions. [2022-10-16 13:48:33,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-16 13:48:33,820 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 979 transitions. [2022-10-16 13:48:33,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-10-16 13:48:33,841 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:33,841 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 13:48:33,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:48:33,842 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting virtblk_cache_type_storeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:33,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:33,843 INFO L85 PathProgramCache]: Analyzing trace with hash 312259444, now seen corresponding path program 1 times [2022-10-16 13:48:33,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:33,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594815802] [2022-10-16 13:48:33,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:33,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:48:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 13:48:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:48:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 13:48:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:48:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:48:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 13:48:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:48:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 13:48:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 13:48:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 13:48:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 13:48:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-16 13:48:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:48:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-16 13:48:34,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:34,461 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-10-16 13:48:34,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:34,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594815802] [2022-10-16 13:48:34,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594815802] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:48:34,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:48:34,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:48:34,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594352413] [2022-10-16 13:48:34,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:48:34,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:48:34,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:34,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:48:34,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:48:34,465 INFO L87 Difference]: Start difference. First operand 748 states and 979 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-16 13:48:36,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:36,246 INFO L93 Difference]: Finished difference Result 788 states and 1043 transitions. [2022-10-16 13:48:36,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:48:36,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2022-10-16 13:48:36,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:36,256 INFO L225 Difference]: With dead ends: 788 [2022-10-16 13:48:36,256 INFO L226 Difference]: Without dead ends: 786 [2022-10-16 13:48:36,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:48:36,259 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 892 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 675 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 675 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:36,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 2354 Invalid, 1807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [675 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-10-16 13:48:36,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2022-10-16 13:48:36,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 750. [2022-10-16 13:48:36,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 538 states have (on average 1.2509293680297398) internal successors, (673), 563 states have internal predecessors, (673), 154 states have call successors, (154), 42 states have call predecessors, (154), 42 states have return successors, (154), 152 states have call predecessors, (154), 154 states have call successors, (154) [2022-10-16 13:48:36,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 981 transitions. [2022-10-16 13:48:36,327 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 981 transitions. Word has length 152 [2022-10-16 13:48:36,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:36,329 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 981 transitions. [2022-10-16 13:48:36,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-16 13:48:36,329 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 981 transitions. [2022-10-16 13:48:36,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-10-16 13:48:36,334 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:36,334 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 13:48:36,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:48:36,335 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting virtblk_cache_type_storeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:36,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:36,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1742418677, now seen corresponding path program 1 times [2022-10-16 13:48:36,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:36,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932747063] [2022-10-16 13:48:36,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:36,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:48:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 13:48:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:48:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 13:48:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:48:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:48:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 13:48:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:48:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 13:48:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 13:48:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 13:48:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 13:48:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-16 13:48:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:48:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-16 13:48:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:36,832 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-10-16 13:48:36,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:36,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932747063] [2022-10-16 13:48:36,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932747063] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:48:36,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483710926] [2022-10-16 13:48:36,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:36,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:36,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:48:36,871 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 13:48:36,884 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 13:48:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:37,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:48:37,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:48:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-10-16 13:48:37,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:48:37,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483710926] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:48:37,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:48:37,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-10-16 13:48:37,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661568587] [2022-10-16 13:48:37,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:48:37,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:48:37,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:37,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:48:37,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:48:37,438 INFO L87 Difference]: Start difference. First operand 750 states and 981 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-16 13:48:37,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:37,554 INFO L93 Difference]: Finished difference Result 750 states and 981 transitions. [2022-10-16 13:48:37,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:48:37,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 157 [2022-10-16 13:48:37,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:37,562 INFO L225 Difference]: With dead ends: 750 [2022-10-16 13:48:37,563 INFO L226 Difference]: Without dead ends: 749 [2022-10-16 13:48:37,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:48:37,565 INFO L413 NwaCegarLoop]: 971 mSDtfsCounter, 22 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:37,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1931 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:48:37,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2022-10-16 13:48:37,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2022-10-16 13:48:37,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 538 states have (on average 1.2490706319702602) internal successors, (672), 562 states have internal predecessors, (672), 154 states have call successors, (154), 42 states have call predecessors, (154), 42 states have return successors, (154), 152 states have call predecessors, (154), 154 states have call successors, (154) [2022-10-16 13:48:37,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 980 transitions. [2022-10-16 13:48:37,620 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 980 transitions. Word has length 157 [2022-10-16 13:48:37,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:37,621 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 980 transitions. [2022-10-16 13:48:37,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-16 13:48:37,621 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 980 transitions. [2022-10-16 13:48:37,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-10-16 13:48:37,625 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:37,625 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 13:48:37,675 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 13:48:37,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:37,840 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting virtblk_cache_type_storeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:37,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:37,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1819596702, now seen corresponding path program 1 times [2022-10-16 13:48:37,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:37,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796147739] [2022-10-16 13:48:37,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:37,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:48:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 13:48:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:48:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 13:48:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 13:48:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:48:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 13:48:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:48:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 13:48:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 13:48:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 13:48:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 13:48:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-16 13:48:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:48:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-16 13:48:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:38,241 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-10-16 13:48:38,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:38,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796147739] [2022-10-16 13:48:38,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796147739] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:48:38,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:48:38,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:48:38,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612439239] [2022-10-16 13:48:38,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:48:38,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:48:38,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:38,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:48:38,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:48:38,244 INFO L87 Difference]: Start difference. First operand 749 states and 980 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-16 13:48:40,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:40,128 INFO L93 Difference]: Finished difference Result 975 states and 1284 transitions. [2022-10-16 13:48:40,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:48:40,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 158 [2022-10-16 13:48:40,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:40,136 INFO L225 Difference]: With dead ends: 975 [2022-10-16 13:48:40,136 INFO L226 Difference]: Without dead ends: 640 [2022-10-16 13:48:40,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-10-16 13:48:40,140 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 876 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 1130 mSolverCounterSat, 677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 2359 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 677 IncrementalHoareTripleChecker+Valid, 1130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:40,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 2359 Invalid, 1807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [677 Valid, 1130 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 13:48:40,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2022-10-16 13:48:40,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 606. [2022-10-16 13:48:40,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 442 states have (on average 1.255656108597285) internal successors, (555), 460 states have internal predecessors, (555), 113 states have call successors, (113), 37 states have call predecessors, (113), 37 states have return successors, (113), 112 states have call predecessors, (113), 113 states have call successors, (113) [2022-10-16 13:48:40,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 781 transitions. [2022-10-16 13:48:40,182 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 781 transitions. Word has length 158 [2022-10-16 13:48:40,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:40,183 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 781 transitions. [2022-10-16 13:48:40,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-16 13:48:40,183 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 781 transitions. [2022-10-16 13:48:40,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-10-16 13:48:40,187 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:40,187 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-16 13:48:40,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:48:40,187 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting virtio_cread64Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:40,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:40,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1962705290, now seen corresponding path program 1 times [2022-10-16 13:48:40,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:40,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533012440] [2022-10-16 13:48:40,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:40,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:40,262 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:48:40,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1522396745] [2022-10-16 13:48:40,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:40,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:40,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:48:40,264 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 13:48:40,284 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 13:48:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:40,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 1707 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 13:48:40,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:48:40,817 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-10-16 13:48:40,817 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:48:40,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:40,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533012440] [2022-10-16 13:48:40,818 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:48:40,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522396745] [2022-10-16 13:48:40,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522396745] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:48:40,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:48:40,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 13:48:40,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761375319] [2022-10-16 13:48:40,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:48:40,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:48:40,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:40,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:48:40,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 13:48:40,820 INFO L87 Difference]: Start difference. First operand 606 states and 781 transitions. Second operand has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 13:48:40,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:40,914 INFO L93 Difference]: Finished difference Result 626 states and 810 transitions. [2022-10-16 13:48:40,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:48:40,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2022-10-16 13:48:40,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:40,921 INFO L225 Difference]: With dead ends: 626 [2022-10-16 13:48:40,921 INFO L226 Difference]: Without dead ends: 625 [2022-10-16 13:48:40,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 13:48:40,923 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 15 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:40,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1552 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:48:40,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2022-10-16 13:48:40,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 611. [2022-10-16 13:48:40,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 446 states have (on average 1.2556053811659194) internal successors, (560), 464 states have internal predecessors, (560), 114 states have call successors, (114), 37 states have call predecessors, (114), 37 states have return successors, (114), 113 states have call predecessors, (114), 114 states have call successors, (114) [2022-10-16 13:48:40,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 788 transitions. [2022-10-16 13:48:40,966 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 788 transitions. Word has length 176 [2022-10-16 13:48:40,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:40,967 INFO L495 AbstractCegarLoop]: Abstraction has 611 states and 788 transitions. [2022-10-16 13:48:40,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 13:48:40,968 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 788 transitions. [2022-10-16 13:48:40,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-16 13:48:40,972 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:40,972 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-16 13:48:41,020 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 13:48:41,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:41,186 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting virtio_cread64Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:41,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:41,188 INFO L85 PathProgramCache]: Analyzing trace with hash 714322411, now seen corresponding path program 1 times [2022-10-16 13:48:41,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:41,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143564508] [2022-10-16 13:48:41,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:41,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:41,274 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:48:41,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [652096896] [2022-10-16 13:48:41,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:41,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:41,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:48:41,276 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 13:48:41,298 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 13:48:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:41,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 1708 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 13:48:41,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:48:41,802 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-10-16 13:48:41,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:48:41,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:41,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143564508] [2022-10-16 13:48:41,803 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:48:41,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652096896] [2022-10-16 13:48:41,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652096896] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:48:41,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:48:41,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 13:48:41,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048014669] [2022-10-16 13:48:41,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:48:41,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:48:41,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:41,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:48:41,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 13:48:41,806 INFO L87 Difference]: Start difference. First operand 611 states and 788 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 13:48:41,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:41,855 INFO L93 Difference]: Finished difference Result 612 states and 789 transitions. [2022-10-16 13:48:41,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:48:41,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2022-10-16 13:48:41,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:41,862 INFO L225 Difference]: With dead ends: 612 [2022-10-16 13:48:41,862 INFO L226 Difference]: Without dead ends: 611 [2022-10-16 13:48:41,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 13:48:41,867 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 14 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:41,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1531 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:48:41,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-10-16 13:48:41,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 610. [2022-10-16 13:48:41,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 446 states have (on average 1.2533632286995515) internal successors, (559), 463 states have internal predecessors, (559), 114 states have call successors, (114), 37 states have call predecessors, (114), 37 states have return successors, (114), 113 states have call predecessors, (114), 114 states have call successors, (114) [2022-10-16 13:48:41,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 787 transitions. [2022-10-16 13:48:41,908 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 787 transitions. Word has length 177 [2022-10-16 13:48:41,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:41,913 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 787 transitions. [2022-10-16 13:48:41,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 13:48:41,913 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 787 transitions. [2022-10-16 13:48:41,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-10-16 13:48:41,918 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:41,918 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-10-16 13:48:41,969 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 13:48:42,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:42,132 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting virtio_cread64Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:42,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:42,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1632357661, now seen corresponding path program 1 times [2022-10-16 13:48:42,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:42,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491109328] [2022-10-16 13:48:42,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:42,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:42,214 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:48:42,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [249659423] [2022-10-16 13:48:42,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:42,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:42,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:48:42,216 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 13:48:42,240 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 13:48:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:42,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 1753 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:48:42,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:48:42,783 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-10-16 13:48:42,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:48:42,953 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-10-16 13:48:42,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:42,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491109328] [2022-10-16 13:48:42,953 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:48:42,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249659423] [2022-10-16 13:48:42,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249659423] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:48:42,954 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 13:48:42,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-10-16 13:48:42,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574231289] [2022-10-16 13:48:42,955 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 13:48:42,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:48:42,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:42,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:48:42,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:48:42,956 INFO L87 Difference]: Start difference. First operand 610 states and 787 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-10-16 13:48:43,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:43,139 INFO L93 Difference]: Finished difference Result 681 states and 890 transitions. [2022-10-16 13:48:43,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:48:43,140 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 185 [2022-10-16 13:48:43,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:43,146 INFO L225 Difference]: With dead ends: 681 [2022-10-16 13:48:43,146 INFO L226 Difference]: Without dead ends: 680 [2022-10-16 13:48:43,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:48:43,148 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 84 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:43,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 2361 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:48:43,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2022-10-16 13:48:43,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 628. [2022-10-16 13:48:43,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 461 states have (on average 1.2516268980477223) internal successors, (577), 478 states have internal predecessors, (577), 117 states have call successors, (117), 37 states have call predecessors, (117), 37 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2022-10-16 13:48:43,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 811 transitions. [2022-10-16 13:48:43,190 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 811 transitions. Word has length 185 [2022-10-16 13:48:43,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:43,191 INFO L495 AbstractCegarLoop]: Abstraction has 628 states and 811 transitions. [2022-10-16 13:48:43,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-10-16 13:48:43,192 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 811 transitions. [2022-10-16 13:48:43,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-10-16 13:48:43,199 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:43,199 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:48:43,249 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 13:48:43,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:43,414 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:43,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:43,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1661230943, now seen corresponding path program 1 times [2022-10-16 13:48:43,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:43,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546422959] [2022-10-16 13:48:43,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:43,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:48:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 13:48:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 13:48:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 13:48:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:43,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:48:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 13:48:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-16 13:48:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:48:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-16 13:48:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-16 13:48:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:48:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-10-16 13:48:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-10-16 13:48:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:43,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:44,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:44,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-10-16 13:48:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:44,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:44,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:44,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:44,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:44,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-10-16 13:48:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:44,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:44,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:44,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:44,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:44,121 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2022-10-16 13:48:44,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:44,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546422959] [2022-10-16 13:48:44,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546422959] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:48:44,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:48:44,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:48:44,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244785836] [2022-10-16 13:48:44,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:48:44,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:48:44,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:44,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:48:44,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:48:44,125 INFO L87 Difference]: Start difference. First operand 628 states and 811 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 13:48:44,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:44,774 INFO L93 Difference]: Finished difference Result 1294 states and 1691 transitions. [2022-10-16 13:48:44,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:48:44,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 327 [2022-10-16 13:48:44,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:44,782 INFO L225 Difference]: With dead ends: 1294 [2022-10-16 13:48:44,782 INFO L226 Difference]: Without dead ends: 699 [2022-10-16 13:48:44,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 99 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 13:48:44,787 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 211 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1835 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:44,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 1835 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 13:48:44,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-10-16 13:48:44,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 629. [2022-10-16 13:48:44,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 462 states have (on average 1.251082251082251) internal successors, (578), 479 states have internal predecessors, (578), 117 states have call successors, (117), 37 states have call predecessors, (117), 37 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2022-10-16 13:48:44,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 812 transitions. [2022-10-16 13:48:44,877 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 812 transitions. Word has length 327 [2022-10-16 13:48:44,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:44,878 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 812 transitions. [2022-10-16 13:48:44,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 13:48:44,879 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 812 transitions. [2022-10-16 13:48:44,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-10-16 13:48:44,885 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:44,886 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:44,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 13:48:44,886 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:44,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:44,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1610397623, now seen corresponding path program 1 times [2022-10-16 13:48:44,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:44,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005757164] [2022-10-16 13:48:44,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:44,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:48:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 13:48:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 13:48:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 13:48:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:48:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 13:48:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-16 13:48:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 13:48:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-16 13:48:45,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:48:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-10-16 13:48:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:48:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 13:48:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 13:48:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-10-16 13:48:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-10-16 13:48:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:45,535 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-10-16 13:48:45,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:45,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005757164] [2022-10-16 13:48:45,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005757164] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:48:45,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:48:45,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:48:45,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106845372] [2022-10-16 13:48:45,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:48:45,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:48:45,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:45,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:48:45,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:48:45,538 INFO L87 Difference]: Start difference. First operand 629 states and 812 transitions. Second operand has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-10-16 13:48:46,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:46,228 INFO L93 Difference]: Finished difference Result 685 states and 893 transitions. [2022-10-16 13:48:46,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:48:46,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 303 [2022-10-16 13:48:46,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:46,235 INFO L225 Difference]: With dead ends: 685 [2022-10-16 13:48:46,236 INFO L226 Difference]: Without dead ends: 681 [2022-10-16 13:48:46,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 94 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 13:48:46,237 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 184 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:46,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 1720 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 13:48:46,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-10-16 13:48:46,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 638. [2022-10-16 13:48:46,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 471 states have (on average 1.2505307855626326) internal successors, (589), 488 states have internal predecessors, (589), 117 states have call successors, (117), 37 states have call predecessors, (117), 37 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2022-10-16 13:48:46,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 823 transitions. [2022-10-16 13:48:46,282 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 823 transitions. Word has length 303 [2022-10-16 13:48:46,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:46,283 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 823 transitions. [2022-10-16 13:48:46,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-10-16 13:48:46,283 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 823 transitions. [2022-10-16 13:48:46,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-10-16 13:48:46,291 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:46,292 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:46,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 13:48:46,292 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:46,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:46,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1724130071, now seen corresponding path program 1 times [2022-10-16 13:48:46,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:46,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008141831] [2022-10-16 13:48:46,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:46,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:48:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 13:48:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 13:48:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 13:48:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:48:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 13:48:46,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-16 13:48:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:48:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-16 13:48:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-16 13:48:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:48:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-10-16 13:48:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:46,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-10-16 13:48:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-10-16 13:48:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-10-16 13:48:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,145 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2022-10-16 13:48:47,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:47,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008141831] [2022-10-16 13:48:47,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008141831] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:48:47,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738391004] [2022-10-16 13:48:47,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:47,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:47,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:48:47,147 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 13:48:47,163 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 13:48:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:47,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 2234 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:48:47,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:48:47,984 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2022-10-16 13:48:47,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:48:48,204 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2022-10-16 13:48:48,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738391004] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:48:48,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:48:48,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-16 13:48:48,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978926331] [2022-10-16 13:48:48,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:48:48,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:48:48,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:48,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:48:48,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:48:48,208 INFO L87 Difference]: Start difference. First operand 638 states and 823 transitions. Second operand has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 1 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-10-16 13:48:49,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:49,304 INFO L93 Difference]: Finished difference Result 716 states and 940 transitions. [2022-10-16 13:48:49,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:48:49,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 1 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 331 [2022-10-16 13:48:49,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:49,312 INFO L225 Difference]: With dead ends: 716 [2022-10-16 13:48:49,312 INFO L226 Difference]: Without dead ends: 714 [2022-10-16 13:48:49,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 755 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:48:49,314 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 229 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 3446 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:49,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 3446 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 13:48:49,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2022-10-16 13:48:49,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 636. [2022-10-16 13:48:49,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 471 states have (on average 1.246284501061571) internal successors, (587), 486 states have internal predecessors, (587), 117 states have call successors, (117), 37 states have call predecessors, (117), 37 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2022-10-16 13:48:49,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 821 transitions. [2022-10-16 13:48:49,359 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 821 transitions. Word has length 331 [2022-10-16 13:48:49,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:49,360 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 821 transitions. [2022-10-16 13:48:49,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 1 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-10-16 13:48:49,361 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 821 transitions. [2022-10-16 13:48:49,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-10-16 13:48:49,368 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:49,369 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:49,415 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 13:48:49,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 13:48:49,585 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:49,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:49,586 INFO L85 PathProgramCache]: Analyzing trace with hash -726283062, now seen corresponding path program 1 times [2022-10-16 13:48:49,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:49,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249331003] [2022-10-16 13:48:49,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:49,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:49,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:48:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:49,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:49,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:49,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 13:48:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:49,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:49,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:49,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:49,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 13:48:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:49,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 13:48:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:48:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 13:48:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 13:48:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 13:48:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-16 13:48:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 13:48:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-16 13:48:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:48:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-10-16 13:48:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 13:48:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-16 13:48:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 13:48:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-10-16 13:48:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-10-16 13:48:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 13:48:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:48:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,345 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-10-16 13:48:50,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:50,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249331003] [2022-10-16 13:48:50,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249331003] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:48:50,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129796742] [2022-10-16 13:48:50,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:50,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:50,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:48:50,348 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 13:48:50,366 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 13:48:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:50,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 2041 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:48:50,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:48:50,974 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-10-16 13:48:50,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:48:50,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129796742] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:48:50,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:48:50,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-16 13:48:50,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989119079] [2022-10-16 13:48:50,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:48:50,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:48:50,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:50,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:48:50,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:48:50,980 INFO L87 Difference]: Start difference. First operand 636 states and 821 transitions. Second operand has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-10-16 13:48:51,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:51,076 INFO L93 Difference]: Finished difference Result 651 states and 841 transitions. [2022-10-16 13:48:51,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:48:51,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 308 [2022-10-16 13:48:51,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:51,083 INFO L225 Difference]: With dead ends: 651 [2022-10-16 13:48:51,084 INFO L226 Difference]: Without dead ends: 649 [2022-10-16 13:48:51,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 400 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 13:48:51,085 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 30 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:51,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1557 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:48:51,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2022-10-16 13:48:51,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 625. [2022-10-16 13:48:51,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 462 states have (on average 1.2424242424242424) internal successors, (574), 475 states have internal predecessors, (574), 117 states have call successors, (117), 37 states have call predecessors, (117), 37 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2022-10-16 13:48:51,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 808 transitions. [2022-10-16 13:48:51,130 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 808 transitions. Word has length 308 [2022-10-16 13:48:51,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:51,130 INFO L495 AbstractCegarLoop]: Abstraction has 625 states and 808 transitions. [2022-10-16 13:48:51,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-10-16 13:48:51,131 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 808 transitions. [2022-10-16 13:48:51,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-10-16 13:48:51,134 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:51,135 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-16 13:48:51,181 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 13:48:51,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:51,349 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting virtio_cread64Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:51,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:51,350 INFO L85 PathProgramCache]: Analyzing trace with hash -99442230, now seen corresponding path program 2 times [2022-10-16 13:48:51,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:51,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005962279] [2022-10-16 13:48:51,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:51,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:51,418 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:48:51,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1764551351] [2022-10-16 13:48:51,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:48:51,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:51,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:48:51,420 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 13:48:51,432 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 13:48:52,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:48:52,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:48:52,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 1891 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 13:48:52,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:48:52,111 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2022-10-16 13:48:52,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:48:52,267 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2022-10-16 13:48:52,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:52,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005962279] [2022-10-16 13:48:52,268 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:48:52,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764551351] [2022-10-16 13:48:52,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764551351] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:48:52,268 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 13:48:52,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-10-16 13:48:52,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044419676] [2022-10-16 13:48:52,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 13:48:52,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 13:48:52,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:52,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 13:48:52,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-16 13:48:52,271 INFO L87 Difference]: Start difference. First operand 625 states and 808 transitions. Second operand has 12 states, 11 states have (on average 9.636363636363637) internal successors, (106), 12 states have internal predecessors, (106), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2022-10-16 13:48:52,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:52,490 INFO L93 Difference]: Finished difference Result 792 states and 1052 transitions. [2022-10-16 13:48:52,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 13:48:52,491 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.636363636363637) internal successors, (106), 12 states have internal predecessors, (106), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) Word has length 212 [2022-10-16 13:48:52,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:52,498 INFO L225 Difference]: With dead ends: 792 [2022-10-16 13:48:52,498 INFO L226 Difference]: Without dead ends: 791 [2022-10-16 13:48:52,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-16 13:48:52,500 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 322 mSDsluCounter, 1648 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 2451 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:52,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 2451 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:48:52,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2022-10-16 13:48:52,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 661. [2022-10-16 13:48:52,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 492 states have (on average 1.2398373983739837) internal successors, (610), 505 states have internal predecessors, (610), 123 states have call successors, (123), 37 states have call predecessors, (123), 37 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123) [2022-10-16 13:48:52,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 856 transitions. [2022-10-16 13:48:52,545 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 856 transitions. Word has length 212 [2022-10-16 13:48:52,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:52,546 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 856 transitions. [2022-10-16 13:48:52,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.636363636363637) internal successors, (106), 12 states have internal predecessors, (106), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2022-10-16 13:48:52,546 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 856 transitions. [2022-10-16 13:48:52,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-10-16 13:48:52,550 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:52,550 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:52,595 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 13:48:52,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:52,767 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:52,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:52,768 INFO L85 PathProgramCache]: Analyzing trace with hash -216068454, now seen corresponding path program 1 times [2022-10-16 13:48:52,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:52,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663384085] [2022-10-16 13:48:52,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:52,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:52,936 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:48:52,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [493223508] [2022-10-16 13:48:52,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:52,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:52,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:48:52,938 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 13:48:52,964 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 13:48:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:53,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 2182 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:48:53,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:48:53,686 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2022-10-16 13:48:53,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:48:53,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:53,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663384085] [2022-10-16 13:48:53,687 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:48:53,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493223508] [2022-10-16 13:48:53,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493223508] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:48:53,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:48:53,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:48:53,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801923726] [2022-10-16 13:48:53,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:48:53,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:48:53,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:53,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:48:53,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:48:53,690 INFO L87 Difference]: Start difference. First operand 661 states and 856 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2022-10-16 13:48:53,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:53,903 INFO L93 Difference]: Finished difference Result 1372 states and 1784 transitions. [2022-10-16 13:48:53,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:48:53,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 265 [2022-10-16 13:48:53,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:53,910 INFO L225 Difference]: With dead ends: 1372 [2022-10-16 13:48:53,910 INFO L226 Difference]: Without dead ends: 744 [2022-10-16 13:48:53,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 260 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 13:48:53,914 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 71 mSDsluCounter, 3359 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 4233 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:53,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 4233 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:48:53,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-10-16 13:48:53,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 666. [2022-10-16 13:48:53,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 496 states have (on average 1.2379032258064515) internal successors, (614), 509 states have internal predecessors, (614), 123 states have call successors, (123), 37 states have call predecessors, (123), 38 states have return successors, (125), 123 states have call predecessors, (125), 123 states have call successors, (125) [2022-10-16 13:48:53,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 862 transitions. [2022-10-16 13:48:53,955 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 862 transitions. Word has length 265 [2022-10-16 13:48:53,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:53,956 INFO L495 AbstractCegarLoop]: Abstraction has 666 states and 862 transitions. [2022-10-16 13:48:53,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2022-10-16 13:48:53,956 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 862 transitions. [2022-10-16 13:48:53,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-10-16 13:48:53,960 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:53,960 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:48:54,005 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 13:48:54,174 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,SelfDestructingSolverStorable12 [2022-10-16 13:48:54,175 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:54,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:54,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1178317851, now seen corresponding path program 1 times [2022-10-16 13:48:54,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:54,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67725511] [2022-10-16 13:48:54,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:54,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:54,287 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:48:54,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2077937072] [2022-10-16 13:48:54,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:54,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:54,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:48:54,289 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:48:54,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 13:48:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:54,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 2288 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:48:54,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:48:54,994 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-10-16 13:48:54,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:48:54,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:54,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67725511] [2022-10-16 13:48:54,995 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:48:54,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077937072] [2022-10-16 13:48:54,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077937072] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:48:54,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:48:54,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:48:54,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059843206] [2022-10-16 13:48:54,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:48:54,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:48:54,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:54,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:48:54,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 13:48:54,998 INFO L87 Difference]: Start difference. First operand 666 states and 862 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-10-16 13:48:55,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:55,060 INFO L93 Difference]: Finished difference Result 1323 states and 1718 transitions. [2022-10-16 13:48:55,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:48:55,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 299 [2022-10-16 13:48:55,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:55,068 INFO L225 Difference]: With dead ends: 1323 [2022-10-16 13:48:55,068 INFO L226 Difference]: Without dead ends: 690 [2022-10-16 13:48:55,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 13:48:55,072 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 17 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1562 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:55,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1562 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:48:55,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-10-16 13:48:55,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 682. [2022-10-16 13:48:55,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 508 states have (on average 1.2401574803149606) internal successors, (630), 521 states have internal predecessors, (630), 127 states have call successors, (127), 37 states have call predecessors, (127), 38 states have return successors, (129), 127 states have call predecessors, (129), 127 states have call successors, (129) [2022-10-16 13:48:55,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 886 transitions. [2022-10-16 13:48:55,116 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 886 transitions. Word has length 299 [2022-10-16 13:48:55,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:55,117 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 886 transitions. [2022-10-16 13:48:55,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-10-16 13:48:55,118 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 886 transitions. [2022-10-16 13:48:55,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-10-16 13:48:55,122 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:55,122 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:48:55,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 13:48:55,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 13:48:55,337 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:55,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:55,338 INFO L85 PathProgramCache]: Analyzing trace with hash 754671129, now seen corresponding path program 1 times [2022-10-16 13:48:55,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:55,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100347382] [2022-10-16 13:48:55,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:55,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:55,476 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:48:55,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447012350] [2022-10-16 13:48:55,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:55,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:55,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:48:55,478 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:48:55,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 13:48:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:56,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 2287 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 13:48:56,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:48:56,222 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-10-16 13:48:56,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:48:56,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:56,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100347382] [2022-10-16 13:48:56,223 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:48:56,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447012350] [2022-10-16 13:48:56,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447012350] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:48:56,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:48:56,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:48:56,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104946763] [2022-10-16 13:48:56,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:48:56,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:48:56,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:56,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:48:56,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:48:56,226 INFO L87 Difference]: Start difference. First operand 682 states and 886 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 6 states have internal predecessors, (110), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2022-10-16 13:48:56,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:56,586 INFO L93 Difference]: Finished difference Result 1456 states and 1910 transitions. [2022-10-16 13:48:56,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:48:56,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 6 states have internal predecessors, (110), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 299 [2022-10-16 13:48:56,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:56,594 INFO L225 Difference]: With dead ends: 1456 [2022-10-16 13:48:56,594 INFO L226 Difference]: Without dead ends: 807 [2022-10-16 13:48:56,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:48:56,600 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 127 mSDsluCounter, 4228 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 5102 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:56,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 5102 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:48:56,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2022-10-16 13:48:56,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 699. [2022-10-16 13:48:56,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 521 states have (on average 1.2418426103646834) internal successors, (647), 534 states have internal predecessors, (647), 131 states have call successors, (131), 37 states have call predecessors, (131), 38 states have return successors, (133), 131 states have call predecessors, (133), 131 states have call successors, (133) [2022-10-16 13:48:56,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 911 transitions. [2022-10-16 13:48:56,648 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 911 transitions. Word has length 299 [2022-10-16 13:48:56,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:56,649 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 911 transitions. [2022-10-16 13:48:56,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 6 states have internal predecessors, (110), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2022-10-16 13:48:56,650 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 911 transitions. [2022-10-16 13:48:56,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-10-16 13:48:56,654 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:56,655 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:48:56,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 13:48:56,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 13:48:56,870 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:56,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:56,870 INFO L85 PathProgramCache]: Analyzing trace with hash -2089151395, now seen corresponding path program 1 times [2022-10-16 13:48:56,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:56,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129893346] [2022-10-16 13:48:56,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:56,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:56,988 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:48:56,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [467724682] [2022-10-16 13:48:56,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:56,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:56,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:48:56,990 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:48:57,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 13:48:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:57,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 2557 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 13:48:57,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:48:57,781 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2022-10-16 13:48:57,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:48:57,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:57,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129893346] [2022-10-16 13:48:57,782 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:48:57,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467724682] [2022-10-16 13:48:57,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467724682] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:48:57,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:48:57,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:48:57,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510754526] [2022-10-16 13:48:57,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:48:57,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:48:57,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:57,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:48:57,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:48:57,785 INFO L87 Difference]: Start difference. First operand 699 states and 911 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-10-16 13:48:58,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:48:58,056 INFO L93 Difference]: Finished difference Result 1460 states and 1914 transitions. [2022-10-16 13:48:58,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:48:58,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 371 [2022-10-16 13:48:58,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:48:58,064 INFO L225 Difference]: With dead ends: 1460 [2022-10-16 13:48:58,064 INFO L226 Difference]: Without dead ends: 794 [2022-10-16 13:48:58,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 366 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 13:48:58,069 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 109 mSDsluCounter, 3340 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 4215 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:48:58,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 4215 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:48:58,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2022-10-16 13:48:58,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 684. [2022-10-16 13:48:58,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 510 states have (on average 1.2392156862745098) internal successors, (632), 523 states have internal predecessors, (632), 127 states have call successors, (127), 37 states have call predecessors, (127), 38 states have return successors, (129), 127 states have call predecessors, (129), 127 states have call successors, (129) [2022-10-16 13:48:58,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 888 transitions. [2022-10-16 13:48:58,123 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 888 transitions. Word has length 371 [2022-10-16 13:48:58,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:48:58,124 INFO L495 AbstractCegarLoop]: Abstraction has 684 states and 888 transitions. [2022-10-16 13:48:58,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-10-16 13:48:58,125 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 888 transitions. [2022-10-16 13:48:58,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-10-16 13:48:58,130 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:48:58,130 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:58,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 13:48:58,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 13:48:58,347 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:48:58,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:48:58,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1367693173, now seen corresponding path program 1 times [2022-10-16 13:48:58,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:48:58,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106474351] [2022-10-16 13:48:58,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:58,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:48:58,483 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:48:58,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1810584390] [2022-10-16 13:48:58,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:48:58,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:48:58,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:48:58,485 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:48:58,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 13:48:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:48:59,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 2455 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 13:48:59,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:48:59,527 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2022-10-16 13:48:59,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:48:59,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:48:59,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106474351] [2022-10-16 13:48:59,528 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:48:59,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810584390] [2022-10-16 13:48:59,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810584390] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:48:59,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:48:59,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:48:59,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480148262] [2022-10-16 13:48:59,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:48:59,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:48:59,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:48:59,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:48:59,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:48:59,531 INFO L87 Difference]: Start difference. First operand 684 states and 888 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-10-16 13:49:00,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:49:00,180 INFO L93 Difference]: Finished difference Result 1335 states and 1747 transitions. [2022-10-16 13:49:00,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:49:00,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 328 [2022-10-16 13:49:00,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:49:00,190 INFO L225 Difference]: With dead ends: 1335 [2022-10-16 13:49:00,190 INFO L226 Difference]: Without dead ends: 684 [2022-10-16 13:49:00,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:49:00,196 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 706 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:49:00,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 2394 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 13:49:00,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-10-16 13:49:00,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 684. [2022-10-16 13:49:00,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 510 states have (on average 1.2372549019607844) internal successors, (631), 523 states have internal predecessors, (631), 127 states have call successors, (127), 37 states have call predecessors, (127), 38 states have return successors, (129), 127 states have call predecessors, (129), 127 states have call successors, (129) [2022-10-16 13:49:00,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 887 transitions. [2022-10-16 13:49:00,247 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 887 transitions. Word has length 328 [2022-10-16 13:49:00,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:49:00,248 INFO L495 AbstractCegarLoop]: Abstraction has 684 states and 887 transitions. [2022-10-16 13:49:00,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-10-16 13:49:00,249 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 887 transitions. [2022-10-16 13:49:00,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-10-16 13:49:00,253 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:49:00,254 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:00,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 13:49:00,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 13:49:00,469 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:49:00,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:49:00,470 INFO L85 PathProgramCache]: Analyzing trace with hash 721943795, now seen corresponding path program 1 times [2022-10-16 13:49:00,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:49:00,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532654710] [2022-10-16 13:49:00,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:00,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:49:00,582 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:49:00,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [446466912] [2022-10-16 13:49:00,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:00,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:00,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:49:00,584 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:49:00,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 13:49:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:49:01,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 2458 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 13:49:01,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:49:02,008 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2022-10-16 13:49:02,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:49:02,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:49:02,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532654710] [2022-10-16 13:49:02,008 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:49:02,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446466912] [2022-10-16 13:49:02,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446466912] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:49:02,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:49:02,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:49:02,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128022213] [2022-10-16 13:49:02,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:49:02,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:49:02,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:49:02,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:49:02,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:49:02,011 INFO L87 Difference]: Start difference. First operand 684 states and 887 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-10-16 13:49:02,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:49:02,808 INFO L93 Difference]: Finished difference Result 1927 states and 2495 transitions. [2022-10-16 13:49:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:49:02,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 328 [2022-10-16 13:49:02,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:49:02,822 INFO L225 Difference]: With dead ends: 1927 [2022-10-16 13:49:02,822 INFO L226 Difference]: Without dead ends: 1276 [2022-10-16 13:49:02,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:49:02,827 INFO L413 NwaCegarLoop]: 953 mSDtfsCounter, 510 mSDsluCounter, 2015 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 2968 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:49:02,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 2968 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 13:49:02,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2022-10-16 13:49:02,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1175. [2022-10-16 13:49:02,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 881 states have (on average 1.2190692395005676) internal successors, (1074), 898 states have internal predecessors, (1074), 213 states have call successors, (213), 69 states have call predecessors, (213), 72 states have return successors, (219), 214 states have call predecessors, (219), 213 states have call successors, (219) [2022-10-16 13:49:02,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1506 transitions. [2022-10-16 13:49:02,931 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1506 transitions. Word has length 328 [2022-10-16 13:49:02,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:49:02,932 INFO L495 AbstractCegarLoop]: Abstraction has 1175 states and 1506 transitions. [2022-10-16 13:49:02,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-10-16 13:49:02,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1506 transitions. [2022-10-16 13:49:02,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2022-10-16 13:49:02,937 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:49:02,938 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:02,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 13:49:03,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 13:49:03,151 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:49:03,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:49:03,152 INFO L85 PathProgramCache]: Analyzing trace with hash -148497561, now seen corresponding path program 1 times [2022-10-16 13:49:03,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:49:03,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056003856] [2022-10-16 13:49:03,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:03,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:49:03,291 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:49:03,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [683565917] [2022-10-16 13:49:03,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:03,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:03,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:49:03,293 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:49:03,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 13:49:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:49:04,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 2526 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:49:04,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:49:04,100 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2022-10-16 13:49:04,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:49:04,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:49:04,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056003856] [2022-10-16 13:49:04,101 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:49:04,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683565917] [2022-10-16 13:49:04,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683565917] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:49:04,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:49:04,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:49:04,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950616754] [2022-10-16 13:49:04,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:49:04,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:49:04,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:49:04,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:49:04,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 13:49:04,104 INFO L87 Difference]: Start difference. First operand 1175 states and 1506 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-10-16 13:49:04,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:49:04,256 INFO L93 Difference]: Finished difference Result 2030 states and 2638 transitions. [2022-10-16 13:49:04,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:49:04,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 345 [2022-10-16 13:49:04,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:49:04,267 INFO L225 Difference]: With dead ends: 2030 [2022-10-16 13:49:04,267 INFO L226 Difference]: Without dead ends: 1379 [2022-10-16 13:49:04,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 13:49:04,272 INFO L413 NwaCegarLoop]: 975 mSDtfsCounter, 203 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:49:04,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1770 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:49:04,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2022-10-16 13:49:04,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1176. [2022-10-16 13:49:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1176 states, 882 states have (on average 1.2188208616780045) internal successors, (1075), 899 states have internal predecessors, (1075), 213 states have call successors, (213), 69 states have call predecessors, (213), 72 states have return successors, (219), 214 states have call predecessors, (219), 213 states have call successors, (219) [2022-10-16 13:49:04,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 1507 transitions. [2022-10-16 13:49:04,373 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 1507 transitions. Word has length 345 [2022-10-16 13:49:04,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:49:04,374 INFO L495 AbstractCegarLoop]: Abstraction has 1176 states and 1507 transitions. [2022-10-16 13:49:04,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-10-16 13:49:04,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 1507 transitions. [2022-10-16 13:49:04,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2022-10-16 13:49:04,380 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:49:04,380 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:04,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 13:49:04,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:04,597 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:49:04,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:49:04,597 INFO L85 PathProgramCache]: Analyzing trace with hash -2142642267, now seen corresponding path program 1 times [2022-10-16 13:49:04,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:49:04,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115590115] [2022-10-16 13:49:04,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:04,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:49:04,750 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:49:04,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2113254408] [2022-10-16 13:49:04,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:04,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:04,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:49:04,752 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:49:04,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 13:49:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:49:05,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 2525 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 13:49:05,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:49:05,913 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-10-16 13:49:05,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:49:05,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:49:05,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115590115] [2022-10-16 13:49:05,914 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:49:05,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113254408] [2022-10-16 13:49:05,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113254408] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:49:05,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:49:05,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:49:05,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959692063] [2022-10-16 13:49:05,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:49:05,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:49:05,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:49:05,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:49:05,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:49:05,917 INFO L87 Difference]: Start difference. First operand 1176 states and 1507 transitions. Second operand has 8 states, 8 states have (on average 18.375) internal successors, (147), 5 states have internal predecessors, (147), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2022-10-16 13:49:07,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:49:07,336 INFO L93 Difference]: Finished difference Result 2394 states and 3082 transitions. [2022-10-16 13:49:07,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:49:07,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.375) internal successors, (147), 5 states have internal predecessors, (147), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) Word has length 345 [2022-10-16 13:49:07,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:49:07,346 INFO L225 Difference]: With dead ends: 2394 [2022-10-16 13:49:07,347 INFO L226 Difference]: Without dead ends: 1251 [2022-10-16 13:49:07,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:49:07,353 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 511 mSDsluCounter, 4316 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 5237 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:49:07,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 5237 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 13:49:07,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2022-10-16 13:49:07,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1181. [2022-10-16 13:49:07,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 886 states have (on average 1.2178329571106095) internal successors, (1079), 902 states have internal predecessors, (1079), 213 states have call successors, (213), 69 states have call predecessors, (213), 73 states have return successors, (228), 216 states have call predecessors, (228), 213 states have call successors, (228) [2022-10-16 13:49:07,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1520 transitions. [2022-10-16 13:49:07,496 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1520 transitions. Word has length 345 [2022-10-16 13:49:07,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:49:07,496 INFO L495 AbstractCegarLoop]: Abstraction has 1181 states and 1520 transitions. [2022-10-16 13:49:07,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.375) internal successors, (147), 5 states have internal predecessors, (147), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2022-10-16 13:49:07,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1520 transitions. [2022-10-16 13:49:07,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-10-16 13:49:07,501 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:49:07,502 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:07,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-10-16 13:49:07,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:07,716 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:49:07,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:49:07,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1681956171, now seen corresponding path program 1 times [2022-10-16 13:49:07,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:49:07,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633602764] [2022-10-16 13:49:07,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:07,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:49:07,832 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:49:07,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534181658] [2022-10-16 13:49:07,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:07,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:07,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:49:07,834 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:49:07,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 13:49:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:49:08,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 2681 conjuncts, 44 conjunts are in the unsatisfiable core [2022-10-16 13:49:08,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:49:09,442 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-10-16 13:49:09,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:49:09,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:49:09,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633602764] [2022-10-16 13:49:09,443 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:49:09,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534181658] [2022-10-16 13:49:09,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534181658] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:49:09,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:49:09,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 13:49:09,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343112176] [2022-10-16 13:49:09,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:49:09,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 13:49:09,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:49:09,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 13:49:09,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:49:09,446 INFO L87 Difference]: Start difference. First operand 1181 states and 1520 transitions. Second operand has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 7 states have internal predecessors, (130), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2022-10-16 13:49:10,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:49:10,988 INFO L93 Difference]: Finished difference Result 1936 states and 2510 transitions. [2022-10-16 13:49:10,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:49:10,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 7 states have internal predecessors, (130), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) Word has length 393 [2022-10-16 13:49:10,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:49:10,999 INFO L225 Difference]: With dead ends: 1936 [2022-10-16 13:49:10,999 INFO L226 Difference]: Without dead ends: 1283 [2022-10-16 13:49:11,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-10-16 13:49:11,004 INFO L413 NwaCegarLoop]: 950 mSDtfsCounter, 661 mSDsluCounter, 4411 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 5361 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:49:11,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 5361 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 13:49:11,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-10-16 13:49:11,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1184. [2022-10-16 13:49:11,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 889 states have (on average 1.217097862767154) internal successors, (1082), 905 states have internal predecessors, (1082), 213 states have call successors, (213), 69 states have call predecessors, (213), 73 states have return successors, (228), 216 states have call predecessors, (228), 213 states have call successors, (228) [2022-10-16 13:49:11,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1523 transitions. [2022-10-16 13:49:11,176 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1523 transitions. Word has length 393 [2022-10-16 13:49:11,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:49:11,177 INFO L495 AbstractCegarLoop]: Abstraction has 1184 states and 1523 transitions. [2022-10-16 13:49:11,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 7 states have internal predecessors, (130), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2022-10-16 13:49:11,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1523 transitions. [2022-10-16 13:49:11,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-10-16 13:49:11,184 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:49:11,185 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-16 13:49:11,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 13:49:11,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:11,399 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting virtio_cread64Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:49:11,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:49:11,400 INFO L85 PathProgramCache]: Analyzing trace with hash -2108295638, now seen corresponding path program 3 times [2022-10-16 13:49:11,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:49:11,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29597105] [2022-10-16 13:49:11,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:11,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:49:11,499 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:49:11,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945344845] [2022-10-16 13:49:11,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 13:49:11,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:11,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:49:11,501 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:49:11,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 13:49:12,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 13:49:12,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:49:12,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 13:49:12,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:49:12,425 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 824 trivial. 0 not checked. [2022-10-16 13:49:12,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:49:12,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:49:12,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29597105] [2022-10-16 13:49:12,426 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:49:12,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945344845] [2022-10-16 13:49:12,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945344845] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:49:12,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:49:12,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-16 13:49:12,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963136567] [2022-10-16 13:49:12,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:49:12,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 13:49:12,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:49:12,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 13:49:12,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-10-16 13:49:12,429 INFO L87 Difference]: Start difference. First operand 1184 states and 1523 transitions. Second operand has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-10-16 13:49:13,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:49:13,001 INFO L93 Difference]: Finished difference Result 2593 states and 3365 transitions. [2022-10-16 13:49:13,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 13:49:13,003 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 266 [2022-10-16 13:49:13,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:49:13,016 INFO L225 Difference]: With dead ends: 2593 [2022-10-16 13:49:13,016 INFO L226 Difference]: Without dead ends: 1440 [2022-10-16 13:49:13,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-10-16 13:49:13,023 INFO L413 NwaCegarLoop]: 929 mSDtfsCounter, 584 mSDsluCounter, 8756 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 9685 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:49:13,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 9685 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:49:13,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2022-10-16 13:49:13,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1200. [2022-10-16 13:49:13,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1200 states, 901 states have (on average 1.214206437291898) internal successors, (1094), 917 states have internal predecessors, (1094), 217 states have call successors, (217), 69 states have call predecessors, (217), 73 states have return successors, (232), 220 states have call predecessors, (232), 217 states have call successors, (232) [2022-10-16 13:49:13,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 1543 transitions. [2022-10-16 13:49:13,154 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 1543 transitions. Word has length 266 [2022-10-16 13:49:13,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:49:13,155 INFO L495 AbstractCegarLoop]: Abstraction has 1200 states and 1543 transitions. [2022-10-16 13:49:13,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-10-16 13:49:13,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 1543 transitions. [2022-10-16 13:49:13,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-10-16 13:49:13,160 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:49:13,160 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-16 13:49:13,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 13:49:13,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:13,375 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting virtio_cread64Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:49:13,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:49:13,376 INFO L85 PathProgramCache]: Analyzing trace with hash 10040203, now seen corresponding path program 1 times [2022-10-16 13:49:13,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:49:13,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673997930] [2022-10-16 13:49:13,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:13,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:49:13,454 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:49:13,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1753681969] [2022-10-16 13:49:13,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:13,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:13,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:49:13,456 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:49:13,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 13:49:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:49:14,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 2179 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 13:49:14,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:49:14,421 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-10-16 13:49:14,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:49:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-10-16 13:49:14,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:49:14,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673997930] [2022-10-16 13:49:14,814 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:49:14,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753681969] [2022-10-16 13:49:14,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753681969] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:49:14,814 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 13:49:14,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2022-10-16 13:49:14,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89487507] [2022-10-16 13:49:14,815 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 13:49:14,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 13:49:14,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:49:14,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 13:49:14,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-10-16 13:49:14,817 INFO L87 Difference]: Start difference. First operand 1200 states and 1543 transitions. Second operand has 24 states, 23 states have (on average 7.3478260869565215) internal successors, (169), 24 states have internal predecessors, (169), 23 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (39), 23 states have call predecessors, (39), 23 states have call successors, (39) [2022-10-16 13:49:15,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:49:15,493 INFO L93 Difference]: Finished difference Result 1917 states and 2573 transitions. [2022-10-16 13:49:15,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 13:49:15,494 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 7.3478260869565215) internal successors, (169), 24 states have internal predecessors, (169), 23 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (39), 23 states have call predecessors, (39), 23 states have call successors, (39) Word has length 269 [2022-10-16 13:49:15,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:49:15,508 INFO L225 Difference]: With dead ends: 1917 [2022-10-16 13:49:15,508 INFO L226 Difference]: Without dead ends: 1916 [2022-10-16 13:49:15,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-10-16 13:49:15,511 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 750 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 4158 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:49:15,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 4158 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:49:15,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2022-10-16 13:49:15,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1344. [2022-10-16 13:49:15,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1021 states have (on average 1.2125367286973556) internal successors, (1238), 1037 states have internal predecessors, (1238), 241 states have call successors, (241), 69 states have call predecessors, (241), 73 states have return successors, (256), 244 states have call predecessors, (256), 241 states have call successors, (256) [2022-10-16 13:49:15,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1735 transitions. [2022-10-16 13:49:15,652 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1735 transitions. Word has length 269 [2022-10-16 13:49:15,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:49:15,652 INFO L495 AbstractCegarLoop]: Abstraction has 1344 states and 1735 transitions. [2022-10-16 13:49:15,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 7.3478260869565215) internal successors, (169), 24 states have internal predecessors, (169), 23 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (39), 23 states have call predecessors, (39), 23 states have call successors, (39) [2022-10-16 13:49:15,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1735 transitions. [2022-10-16 13:49:15,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2022-10-16 13:49:15,658 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:49:15,659 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:15,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 13:49:15,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:15,875 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:49:15,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:49:15,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1010085583, now seen corresponding path program 1 times [2022-10-16 13:49:15,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:49:15,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179135002] [2022-10-16 13:49:15,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:15,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:49:16,002 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:49:16,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1456950794] [2022-10-16 13:49:16,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:16,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:16,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:49:16,005 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:49:16,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 13:49:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:49:17,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 2733 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-16 13:49:17,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:49:17,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 939 trivial. 0 not checked. [2022-10-16 13:49:17,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:49:17,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:49:17,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179135002] [2022-10-16 13:49:17,233 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:49:17,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456950794] [2022-10-16 13:49:17,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456950794] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:49:17,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:49:17,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 13:49:17,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964708589] [2022-10-16 13:49:17,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:49:17,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 13:49:17,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:49:17,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 13:49:17,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:49:17,237 INFO L87 Difference]: Start difference. First operand 1344 states and 1735 transitions. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-10-16 13:49:17,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:49:17,775 INFO L93 Difference]: Finished difference Result 2398 states and 3141 transitions. [2022-10-16 13:49:17,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 13:49:17,776 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 409 [2022-10-16 13:49:17,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:49:17,790 INFO L225 Difference]: With dead ends: 2398 [2022-10-16 13:49:17,791 INFO L226 Difference]: Without dead ends: 1665 [2022-10-16 13:49:17,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:49:17,802 INFO L413 NwaCegarLoop]: 1031 mSDtfsCounter, 423 mSDsluCounter, 6565 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 7596 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:49:17,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 7596 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:49:17,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2022-10-16 13:49:17,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1347. [2022-10-16 13:49:17,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1024 states have (on average 1.2119140625) internal successors, (1241), 1040 states have internal predecessors, (1241), 241 states have call successors, (241), 69 states have call predecessors, (241), 73 states have return successors, (256), 244 states have call predecessors, (256), 241 states have call successors, (256) [2022-10-16 13:49:17,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1738 transitions. [2022-10-16 13:49:17,989 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1738 transitions. Word has length 409 [2022-10-16 13:49:17,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:49:17,990 INFO L495 AbstractCegarLoop]: Abstraction has 1347 states and 1738 transitions. [2022-10-16 13:49:17,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 8 states have internal predecessors, (132), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-10-16 13:49:17,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1738 transitions. [2022-10-16 13:49:17,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2022-10-16 13:49:17,997 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:49:17,998 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:18,047 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-10-16 13:49:18,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:18,212 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:49:18,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:49:18,213 INFO L85 PathProgramCache]: Analyzing trace with hash 835281583, now seen corresponding path program 1 times [2022-10-16 13:49:18,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:49:18,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293889086] [2022-10-16 13:49:18,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:18,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:49:18,359 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:49:18,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [725090245] [2022-10-16 13:49:18,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:18,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:18,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:49:18,361 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:49:18,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 13:49:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:49:19,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 2734 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 13:49:19,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:49:19,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 501 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2022-10-16 13:49:19,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:49:19,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:49:19,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293889086] [2022-10-16 13:49:19,569 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:49:19,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725090245] [2022-10-16 13:49:19,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725090245] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:49:19,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:49:19,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:49:19,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249954065] [2022-10-16 13:49:19,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:49:19,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:49:19,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:49:19,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:49:19,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:49:19,571 INFO L87 Difference]: Start difference. First operand 1347 states and 1738 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-10-16 13:49:19,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:49:19,846 INFO L93 Difference]: Finished difference Result 2681 states and 3526 transitions. [2022-10-16 13:49:19,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:49:19,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 409 [2022-10-16 13:49:19,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:49:19,859 INFO L225 Difference]: With dead ends: 2681 [2022-10-16 13:49:19,859 INFO L226 Difference]: Without dead ends: 1367 [2022-10-16 13:49:19,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:49:19,867 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 17 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2212 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:49:19,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2212 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:49:19,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2022-10-16 13:49:20,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1367. [2022-10-16 13:49:20,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 1040 states have (on average 1.208653846153846) internal successors, (1257), 1056 states have internal predecessors, (1257), 243 states have call successors, (243), 71 states have call predecessors, (243), 75 states have return successors, (258), 246 states have call predecessors, (258), 243 states have call successors, (258) [2022-10-16 13:49:20,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1758 transitions. [2022-10-16 13:49:20,057 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1758 transitions. Word has length 409 [2022-10-16 13:49:20,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:49:20,058 INFO L495 AbstractCegarLoop]: Abstraction has 1367 states and 1758 transitions. [2022-10-16 13:49:20,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-10-16 13:49:20,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1758 transitions. [2022-10-16 13:49:20,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2022-10-16 13:49:20,064 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:49:20,064 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:49:20,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 13:49:20,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-10-16 13:49:20,280 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:49:20,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:49:20,280 INFO L85 PathProgramCache]: Analyzing trace with hash -742297297, now seen corresponding path program 1 times [2022-10-16 13:49:20,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:49:20,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399709029] [2022-10-16 13:49:20,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:20,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:49:20,455 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:49:20,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1672021518] [2022-10-16 13:49:20,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:20,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:20,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:49:20,457 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:49:20,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 13:49:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:49:21,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 2630 conjuncts, 40 conjunts are in the unsatisfiable core [2022-10-16 13:49:21,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:49:21,953 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-10-16 13:49:21,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:49:21,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:49:21,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399709029] [2022-10-16 13:49:21,954 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:49:21,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672021518] [2022-10-16 13:49:21,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672021518] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:49:21,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:49:21,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:49:21,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192492178] [2022-10-16 13:49:21,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:49:21,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:49:21,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:49:21,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:49:21,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:49:21,958 INFO L87 Difference]: Start difference. First operand 1367 states and 1758 transitions. Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 4 states have call predecessors, (41), 2 states have call successors, (41) [2022-10-16 13:49:23,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:49:23,358 INFO L93 Difference]: Finished difference Result 2706 states and 3483 transitions. [2022-10-16 13:49:23,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:49:23,359 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 4 states have call predecessors, (41), 2 states have call successors, (41) Word has length 377 [2022-10-16 13:49:23,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:49:23,369 INFO L225 Difference]: With dead ends: 2706 [2022-10-16 13:49:23,369 INFO L226 Difference]: Without dead ends: 1372 [2022-10-16 13:49:23,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:49:23,375 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 402 mSDsluCounter, 4095 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 4942 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:49:23,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 4942 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-16 13:49:23,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2022-10-16 13:49:23,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1369. [2022-10-16 13:49:23,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 1042 states have (on average 1.2082533589251438) internal successors, (1259), 1057 states have internal predecessors, (1259), 243 states have call successors, (243), 71 states have call predecessors, (243), 75 states have return successors, (258), 247 states have call predecessors, (258), 243 states have call successors, (258) [2022-10-16 13:49:23,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1760 transitions. [2022-10-16 13:49:23,517 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1760 transitions. Word has length 377 [2022-10-16 13:49:23,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:49:23,518 INFO L495 AbstractCegarLoop]: Abstraction has 1369 states and 1760 transitions. [2022-10-16 13:49:23,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 4 states have call predecessors, (41), 2 states have call successors, (41) [2022-10-16 13:49:23,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1760 transitions. [2022-10-16 13:49:23,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-10-16 13:49:23,523 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:49:23,524 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:23,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 13:49:23,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 13:49:23,738 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:49:23,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:49:23,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1897685653, now seen corresponding path program 2 times [2022-10-16 13:49:23,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:49:23,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218029440] [2022-10-16 13:49:23,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:23,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:49:23,847 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:49:23,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [708725848] [2022-10-16 13:49:23,847 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:49:23,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:23,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:49:23,849 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:49:23,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 13:49:25,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:49:25,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:49:25,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 2682 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 13:49:25,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:49:25,648 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2022-10-16 13:49:25,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:49:25,906 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2022-10-16 13:49:25,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:49:25,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218029440] [2022-10-16 13:49:25,907 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:49:25,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708725848] [2022-10-16 13:49:25,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708725848] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-16 13:49:25,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:49:25,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-16 13:49:25,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322969146] [2022-10-16 13:49:25,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:49:25,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:49:25,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:49:25,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:49:25,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:49:25,910 INFO L87 Difference]: Start difference. First operand 1369 states and 1760 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-10-16 13:49:26,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:49:26,040 INFO L93 Difference]: Finished difference Result 2115 states and 2726 transitions. [2022-10-16 13:49:26,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:49:26,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 393 [2022-10-16 13:49:26,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:49:26,051 INFO L225 Difference]: With dead ends: 2115 [2022-10-16 13:49:26,051 INFO L226 Difference]: Without dead ends: 1370 [2022-10-16 13:49:26,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 784 GetRequests, 781 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:49:26,056 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 0 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:49:26,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1546 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:49:26,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2022-10-16 13:49:26,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1370. [2022-10-16 13:49:26,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1043 states have (on average 1.2080536912751678) internal successors, (1260), 1058 states have internal predecessors, (1260), 243 states have call successors, (243), 71 states have call predecessors, (243), 75 states have return successors, (258), 247 states have call predecessors, (258), 243 states have call successors, (258) [2022-10-16 13:49:26,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1761 transitions. [2022-10-16 13:49:26,194 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1761 transitions. Word has length 393 [2022-10-16 13:49:26,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:49:26,195 INFO L495 AbstractCegarLoop]: Abstraction has 1370 states and 1761 transitions. [2022-10-16 13:49:26,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-10-16 13:49:26,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1761 transitions. [2022-10-16 13:49:26,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2022-10-16 13:49:26,201 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:49:26,201 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:49:26,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 13:49:26,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 13:49:26,417 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:49:26,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:49:26,418 INFO L85 PathProgramCache]: Analyzing trace with hash 2124578300, now seen corresponding path program 1 times [2022-10-16 13:49:26,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:49:26,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909265525] [2022-10-16 13:49:26,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:26,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:49:26,541 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:49:26,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [897378600] [2022-10-16 13:49:26,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:26,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:26,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:49:26,543 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:49:26,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 13:49:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:49:29,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 2749 conjuncts, 40 conjunts are in the unsatisfiable core [2022-10-16 13:49:29,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:49:29,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 290 proven. 3 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2022-10-16 13:49:29,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:49:30,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 6 proven. 63 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2022-10-16 13:49:30,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:49:30,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909265525] [2022-10-16 13:49:30,280 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:49:30,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897378600] [2022-10-16 13:49:30,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897378600] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:49:30,281 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 13:49:30,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-10-16 13:49:30,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737593805] [2022-10-16 13:49:30,281 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 13:49:30,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 13:49:30,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:49:30,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 13:49:30,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:49:30,284 INFO L87 Difference]: Start difference. First operand 1370 states and 1761 transitions. Second operand has 14 states, 13 states have (on average 15.692307692307692) internal successors, (204), 12 states have internal predecessors, (204), 5 states have call successors, (65), 2 states have call predecessors, (65), 5 states have return successors, (67), 6 states have call predecessors, (67), 5 states have call successors, (67) [2022-10-16 13:49:30,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:49:30,659 INFO L93 Difference]: Finished difference Result 2721 states and 3498 transitions. [2022-10-16 13:49:30,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:49:30,660 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 15.692307692307692) internal successors, (204), 12 states have internal predecessors, (204), 5 states have call successors, (65), 2 states have call predecessors, (65), 5 states have return successors, (67), 6 states have call predecessors, (67), 5 states have call successors, (67) Word has length 410 [2022-10-16 13:49:30,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:49:30,669 INFO L225 Difference]: With dead ends: 2721 [2022-10-16 13:49:30,669 INFO L226 Difference]: Without dead ends: 1370 [2022-10-16 13:49:30,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 806 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-10-16 13:49:30,676 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 252 mSDsluCounter, 7666 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 8425 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:49:30,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 8425 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:49:30,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2022-10-16 13:49:30,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1370. [2022-10-16 13:49:30,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1043 states have (on average 1.2070949185043145) internal successors, (1259), 1057 states have internal predecessors, (1259), 243 states have call successors, (243), 71 states have call predecessors, (243), 75 states have return successors, (258), 247 states have call predecessors, (258), 243 states have call successors, (258) [2022-10-16 13:49:30,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1760 transitions. [2022-10-16 13:49:30,831 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1760 transitions. Word has length 410 [2022-10-16 13:49:30,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:49:30,832 INFO L495 AbstractCegarLoop]: Abstraction has 1370 states and 1760 transitions. [2022-10-16 13:49:30,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 15.692307692307692) internal successors, (204), 12 states have internal predecessors, (204), 5 states have call successors, (65), 2 states have call predecessors, (65), 5 states have return successors, (67), 6 states have call predecessors, (67), 5 states have call successors, (67) [2022-10-16 13:49:30,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1760 transitions. [2022-10-16 13:49:30,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-10-16 13:49:30,837 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:49:30,838 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:30,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-10-16 13:49:31,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:31,039 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:49:31,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:49:31,040 INFO L85 PathProgramCache]: Analyzing trace with hash -771361287, now seen corresponding path program 1 times [2022-10-16 13:49:31,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:49:31,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704921014] [2022-10-16 13:49:31,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:31,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:49:31,160 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:49:31,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1293900234] [2022-10-16 13:49:31,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:31,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:31,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:49:31,162 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:49:31,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 13:49:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:49:34,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 2715 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 13:49:34,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:49:34,287 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2022-10-16 13:49:34,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:49:34,588 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2022-10-16 13:49:34,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:49:34,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704921014] [2022-10-16 13:49:34,589 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:49:34,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293900234] [2022-10-16 13:49:34,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293900234] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:49:34,589 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 13:49:34,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-10-16 13:49:34,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092384507] [2022-10-16 13:49:34,590 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 13:49:34,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:49:34,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:49:34,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:49:34,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:49:34,592 INFO L87 Difference]: Start difference. First operand 1370 states and 1760 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-10-16 13:49:35,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:49:35,094 INFO L93 Difference]: Finished difference Result 2125 states and 2740 transitions. [2022-10-16 13:49:35,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:49:35,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 398 [2022-10-16 13:49:35,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:49:35,106 INFO L225 Difference]: With dead ends: 2125 [2022-10-16 13:49:35,106 INFO L226 Difference]: Without dead ends: 1379 [2022-10-16 13:49:35,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 795 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:49:35,112 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 240 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:49:35,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 3311 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:49:35,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2022-10-16 13:49:35,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1373. [2022-10-16 13:49:35,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 1046 states have (on average 1.2065009560229445) internal successors, (1262), 1060 states have internal predecessors, (1262), 243 states have call successors, (243), 71 states have call predecessors, (243), 75 states have return successors, (258), 247 states have call predecessors, (258), 243 states have call successors, (258) [2022-10-16 13:49:35,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1763 transitions. [2022-10-16 13:49:35,312 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1763 transitions. Word has length 398 [2022-10-16 13:49:35,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:49:35,312 INFO L495 AbstractCegarLoop]: Abstraction has 1373 states and 1763 transitions. [2022-10-16 13:49:35,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-10-16 13:49:35,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1763 transitions. [2022-10-16 13:49:35,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-10-16 13:49:35,318 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:49:35,319 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:35,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-16 13:49:35,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 13:49:35,534 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:49:35,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:49:35,535 INFO L85 PathProgramCache]: Analyzing trace with hash -255076206, now seen corresponding path program 2 times [2022-10-16 13:49:35,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:49:35,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705598737] [2022-10-16 13:49:35,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:35,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:49:35,645 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:49:35,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693191424] [2022-10-16 13:49:35,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:49:35,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:35,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:49:35,647 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:49:35,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 13:49:37,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:49:37,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:49:37,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 2760 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 13:49:37,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:49:38,208 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 12 proven. 49 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2022-10-16 13:49:38,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:49:38,589 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2022-10-16 13:49:38,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:49:38,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705598737] [2022-10-16 13:49:38,594 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 13:49:38,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693191424] [2022-10-16 13:49:38,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693191424] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:49:38,594 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 13:49:38,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2022-10-16 13:49:38,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40544431] [2022-10-16 13:49:38,595 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 13:49:38,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 13:49:38,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:49:38,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 13:49:38,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:49:38,598 INFO L87 Difference]: Start difference. First operand 1373 states and 1763 transitions. Second operand has 13 states, 13 states have (on average 18.846153846153847) internal successors, (245), 13 states have internal predecessors, (245), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2022-10-16 13:49:40,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:49:40,142 INFO L93 Difference]: Finished difference Result 2135 states and 2752 transitions. [2022-10-16 13:49:40,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 13:49:40,143 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 18.846153846153847) internal successors, (245), 13 states have internal predecessors, (245), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) Word has length 401 [2022-10-16 13:49:40,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:49:40,151 INFO L225 Difference]: With dead ends: 2135 [2022-10-16 13:49:40,151 INFO L226 Difference]: Without dead ends: 1386 [2022-10-16 13:49:40,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 789 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2022-10-16 13:49:40,157 INFO L413 NwaCegarLoop]: 974 mSDtfsCounter, 614 mSDsluCounter, 6074 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 7048 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:49:40,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 7048 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 13:49:40,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2022-10-16 13:49:40,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1379. [2022-10-16 13:49:40,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1379 states, 1052 states have (on average 1.2053231939163498) internal successors, (1268), 1066 states have internal predecessors, (1268), 243 states have call successors, (243), 71 states have call predecessors, (243), 75 states have return successors, (258), 247 states have call predecessors, (258), 243 states have call successors, (258) [2022-10-16 13:49:40,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1769 transitions. [2022-10-16 13:49:40,396 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1769 transitions. Word has length 401 [2022-10-16 13:49:40,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:49:40,398 INFO L495 AbstractCegarLoop]: Abstraction has 1379 states and 1769 transitions. [2022-10-16 13:49:40,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.846153846153847) internal successors, (245), 13 states have internal predecessors, (245), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2022-10-16 13:49:40,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1769 transitions. [2022-10-16 13:49:40,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2022-10-16 13:49:40,408 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:49:40,408 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 10, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:40,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-10-16 13:49:40,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:40,624 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [init_vqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, init_vqErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 13:49:40,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:49:40,625 INFO L85 PathProgramCache]: Analyzing trace with hash 467013426, now seen corresponding path program 3 times [2022-10-16 13:49:40,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:49:40,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342800165] [2022-10-16 13:49:40,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:49:40,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:49:40,759 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 13:49:40,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1748942698] [2022-10-16 13:49:40,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 13:49:40,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:49:40,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:49:40,764 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:49:40,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process