/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:16:33,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:16:33,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:16:33,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:16:33,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:16:33,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:16:33,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:16:33,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:16:33,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:16:33,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:16:33,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:16:33,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:16:33,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:16:33,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:16:33,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:16:33,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:16:33,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:16:33,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:16:33,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:16:33,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:16:33,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:16:33,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:16:33,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:16:33,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:16:33,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:16:33,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:16:33,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:16:33,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:16:33,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:16:33,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:16:33,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:16:33,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:16:33,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:16:33,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:16:33,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:16:33,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:16:33,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:16:33,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:16:33,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:16:33,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:16:33,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:16:33,499 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 13:16:33,527 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:16:33,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:16:33,528 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:16:33,528 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:16:33,529 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:16:33,529 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:16:33,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:16:33,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:16:33,531 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:16:33,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:16:33,531 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:16:33,531 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:16:33,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:16:33,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:16:33,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:16:33,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:16:33,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:16:33,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:16:33,533 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:16:33,533 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:16:33,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:16:33,534 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:16:33,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:16:33,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:16:33,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:16:33,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:16:33,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:16:33,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:16:33,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:16:33,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:16:33,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:16:33,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:16:33,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:16:33,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:16:33,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:16:33,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:16:33,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:16:33,968 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:16:33,968 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:16:33,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i [2022-10-16 13:16:34,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dd466751/df3fa5097aa840009e19a443c65d7d07/FLAG4bf8700a2 [2022-10-16 13:16:34,945 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:16:34,951 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i [2022-10-16 13:16:34,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dd466751/df3fa5097aa840009e19a443c65d7d07/FLAG4bf8700a2 [2022-10-16 13:16:35,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dd466751/df3fa5097aa840009e19a443c65d7d07 [2022-10-16 13:16:35,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:16:35,504 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:16:35,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:16:35,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:16:35,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:16:35,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:16:35" (1/1) ... [2022-10-16 13:16:35,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8b0297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:16:35, skipping insertion in model container [2022-10-16 13:16:35,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:16:35" (1/1) ... [2022-10-16 13:16:35,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:16:35,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:16:36,120 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3059] [2022-10-16 13:16:36,120 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3060-3061] [2022-10-16 13:16:36,296 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i[90990,91003] [2022-10-16 13:16:36,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:16:36,890 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:16:36,991 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3059] [2022-10-16 13:16:36,992 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3060-3061] [2022-10-16 13:16:37,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i[90990,91003] [2022-10-16 13:16:37,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:16:37,196 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:16:37,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:16:37 WrapperNode [2022-10-16 13:16:37,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:16:37,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:16:37,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:16:37,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:16:37,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:16:37" (1/1) ... [2022-10-16 13:16:37,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:16:37" (1/1) ... [2022-10-16 13:16:37,355 INFO L138 Inliner]: procedures = 119, calls = 771, calls flagged for inlining = 38, calls inlined = 36, statements flattened = 1573 [2022-10-16 13:16:37,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:16:37,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:16:37,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:16:37,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:16:37,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:16:37" (1/1) ... [2022-10-16 13:16:37,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:16:37" (1/1) ... [2022-10-16 13:16:37,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:16:37" (1/1) ... [2022-10-16 13:16:37,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:16:37" (1/1) ... [2022-10-16 13:16:37,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:16:37" (1/1) ... [2022-10-16 13:16:37,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:16:37" (1/1) ... [2022-10-16 13:16:37,539 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:16:37" (1/1) ... [2022-10-16 13:16:37,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:16:37" (1/1) ... [2022-10-16 13:16:37,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:16:37,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:16:37,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:16:37,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:16:37,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:16:37" (1/1) ... [2022-10-16 13:16:37,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:16:37,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:16:37,612 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 13:16:37,757 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 13:16:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2022-10-16 13:16:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2022-10-16 13:16:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-10-16 13:16:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-10-16 13:16:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2022-10-16 13:16:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2022-10-16 13:16:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2022-10-16 13:16:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2022-10-16 13:16:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:16:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:16:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:16:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2022-10-16 13:16:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2022-10-16 13:16:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-10-16 13:16:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-10-16 13:16:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2022-10-16 13:16:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2022-10-16 13:16:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:16:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:16:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2022-10-16 13:16:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2022-10-16 13:16:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2022-10-16 13:16:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2022-10-16 13:16:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2022-10-16 13:16:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2022-10-16 13:16:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:16:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2022-10-16 13:16:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2022-10-16 13:16:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 13:16:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 13:16:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:16:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:16:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 13:16:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 13:16:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:16:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:16:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2022-10-16 13:16:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2022-10-16 13:16:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:16:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2022-10-16 13:16:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2022-10-16 13:16:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2022-10-16 13:16:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2022-10-16 13:16:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-16 13:16:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-16 13:16:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:16:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-16 13:16:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-16 13:16:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-16 13:16:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-16 13:16:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:16:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:16:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2022-10-16 13:16:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2022-10-16 13:16:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-10-16 13:16:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-10-16 13:16:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2022-10-16 13:16:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2022-10-16 13:16:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:16:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2022-10-16 13:16:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2022-10-16 13:16:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2022-10-16 13:16:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2022-10-16 13:16:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_20 [2022-10-16 13:16:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_20 [2022-10-16 13:16:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-10-16 13:16:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-10-16 13:16:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2022-10-16 13:16:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2022-10-16 13:16:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:16:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:16:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2022-10-16 13:16:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2022-10-16 13:16:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2022-10-16 13:16:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2022-10-16 13:16:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-16 13:16:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-16 13:16:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2022-10-16 13:16:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2022-10-16 13:16:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2022-10-16 13:16:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2022-10-16 13:16:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-10-16 13:16:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-10-16 13:16:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-16 13:16:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-16 13:16:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2022-10-16 13:16:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2022-10-16 13:16:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:16:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2022-10-16 13:16:37,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2022-10-16 13:16:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2022-10-16 13:16:37,842 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2022-10-16 13:16:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 13:16:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 13:16:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-16 13:16:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-16 13:16:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:16:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:16:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2022-10-16 13:16:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2022-10-16 13:16:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-16 13:16:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-16 13:16:38,355 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:16:38,361 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:16:38,565 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:16:47,063 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:16:47,080 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:16:47,080 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 13:16:47,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:16:47 BoogieIcfgContainer [2022-10-16 13:16:47,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:16:47,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:16:47,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:16:47,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:16:47,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:16:35" (1/3) ... [2022-10-16 13:16:47,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@426d7b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:16:47, skipping insertion in model container [2022-10-16 13:16:47,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:16:37" (2/3) ... [2022-10-16 13:16:47,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@426d7b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:16:47, skipping insertion in model container [2022-10-16 13:16:47,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:16:47" (3/3) ... [2022-10-16 13:16:47,094 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i [2022-10-16 13:16:47,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:16:47,115 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 124 error locations. [2022-10-16 13:16:47,205 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:16:47,217 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;@4262042b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:16:47,217 INFO L358 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2022-10-16 13:16:47,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 958 states, 621 states have (on average 1.5136876006441224) internal successors, (940), 764 states have internal predecessors, (940), 172 states have call successors, (172), 45 states have call predecessors, (172), 44 states have return successors, (169), 169 states have call predecessors, (169), 169 states have call successors, (169) [2022-10-16 13:16:47,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 13:16:47,240 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:16:47,240 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:16:47,241 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 13:16:47,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:16:47,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1716968544, now seen corresponding path program 1 times [2022-10-16 13:16:47,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:16:47,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319953150] [2022-10-16 13:16:47,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:16:47,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:16:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:47,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:16:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:47,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:16:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:47,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:16:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:47,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:16:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:47,992 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:16:47,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:16:47,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319953150] [2022-10-16 13:16:47,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319953150] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:16:47,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:16:47,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:16:47,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422469018] [2022-10-16 13:16:47,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:16:48,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:16:48,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:16:48,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:16:48,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:16:48,051 INFO L87 Difference]: Start difference. First operand has 958 states, 621 states have (on average 1.5136876006441224) internal successors, (940), 764 states have internal predecessors, (940), 172 states have call successors, (172), 45 states have call predecessors, (172), 44 states have return successors, (169), 169 states have call predecessors, (169), 169 states have call successors, (169) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:16:54,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:16:56,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:16:56,768 INFO L93 Difference]: Finished difference Result 2178 states and 2948 transitions. [2022-10-16 13:16:56,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:16:56,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2022-10-16 13:16:56,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:16:56,796 INFO L225 Difference]: With dead ends: 2178 [2022-10-16 13:16:56,796 INFO L226 Difference]: Without dead ends: 1203 [2022-10-16 13:16:56,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:16:56,816 INFO L413 NwaCegarLoop]: 1211 mSDtfsCounter, 570 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 214 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:16:56,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 2558 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 748 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-10-16 13:16:56,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2022-10-16 13:16:56,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1104. [2022-10-16 13:16:56,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 731 states have (on average 1.476060191518468) internal successors, (1079), 866 states have internal predecessors, (1079), 190 states have call successors, (190), 59 states have call predecessors, (190), 59 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2022-10-16 13:16:56,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1459 transitions. [2022-10-16 13:16:56,982 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1459 transitions. Word has length 37 [2022-10-16 13:16:56,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:16:56,983 INFO L495 AbstractCegarLoop]: Abstraction has 1104 states and 1459 transitions. [2022-10-16 13:16:56,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:16:56,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1459 transitions. [2022-10-16 13:16:56,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 13:16:56,986 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:16:56,986 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:16:56,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:16:56,987 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 13:16:56,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:16:56,987 INFO L85 PathProgramCache]: Analyzing trace with hash 697338872, now seen corresponding path program 1 times [2022-10-16 13:16:56,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:16:56,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438494986] [2022-10-16 13:16:56,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:16:56,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:16:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:57,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:16:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:57,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:16:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:57,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:16:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:57,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:16:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:57,181 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:16:57,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:16:57,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438494986] [2022-10-16 13:16:57,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438494986] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:16:57,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:16:57,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:16:57,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413689005] [2022-10-16 13:16:57,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:16:57,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:16:57,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:16:57,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:16:57,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:16:57,185 INFO L87 Difference]: Start difference. First operand 1104 states and 1459 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:17:04,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:07,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:07,355 INFO L93 Difference]: Finished difference Result 2848 states and 3778 transitions. [2022-10-16 13:17:07,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:17:07,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2022-10-16 13:17:07,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:07,371 INFO L225 Difference]: With dead ends: 2848 [2022-10-16 13:17:07,371 INFO L226 Difference]: Without dead ends: 1776 [2022-10-16 13:17:07,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:17:07,379 INFO L413 NwaCegarLoop]: 1808 mSDtfsCounter, 1176 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 336 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:07,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 3261 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 883 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2022-10-16 13:17:07,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2022-10-16 13:17:07,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1664. [2022-10-16 13:17:07,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1664 states, 1138 states have (on average 1.4578207381370827) internal successors, (1659), 1280 states have internal predecessors, (1659), 308 states have call successors, (308), 94 states have call predecessors, (308), 94 states have return successors, (308), 308 states have call predecessors, (308), 308 states have call successors, (308) [2022-10-16 13:17:07,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2275 transitions. [2022-10-16 13:17:07,490 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2275 transitions. Word has length 37 [2022-10-16 13:17:07,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:07,491 INFO L495 AbstractCegarLoop]: Abstraction has 1664 states and 2275 transitions. [2022-10-16 13:17:07,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:17:07,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2275 transitions. [2022-10-16 13:17:07,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 13:17:07,493 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:07,493 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:07,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:17:07,494 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 13:17:07,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:07,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1262853521, now seen corresponding path program 1 times [2022-10-16 13:17:07,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:07,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136459313] [2022-10-16 13:17:07,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:07,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:07,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:07,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:17:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:07,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:17:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:07,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:17:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:07,737 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:17:07,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:07,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136459313] [2022-10-16 13:17:07,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136459313] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:07,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:07,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:17:07,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141370846] [2022-10-16 13:17:07,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:07,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:07,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:07,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:07,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:17:07,741 INFO L87 Difference]: Start difference. First operand 1664 states and 2275 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:17:14,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:16,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:17,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:17,090 INFO L93 Difference]: Finished difference Result 3389 states and 4649 transitions. [2022-10-16 13:17:17,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:17:17,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40 [2022-10-16 13:17:17,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:17,104 INFO L225 Difference]: With dead ends: 3389 [2022-10-16 13:17:17,104 INFO L226 Difference]: Without dead ends: 1757 [2022-10-16 13:17:17,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 13:17:17,114 INFO L413 NwaCegarLoop]: 1153 mSDtfsCounter, 277 mSDsluCounter, 1357 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 166 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:17,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 2510 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 722 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2022-10-16 13:17:17,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2022-10-16 13:17:17,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1700. [2022-10-16 13:17:17,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1168 states have (on average 1.4580479452054795) internal successors, (1703), 1310 states have internal predecessors, (1703), 314 states have call successors, (314), 94 states have call predecessors, (314), 94 states have return successors, (314), 314 states have call predecessors, (314), 314 states have call successors, (314) [2022-10-16 13:17:17,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2331 transitions. [2022-10-16 13:17:17,212 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2331 transitions. Word has length 40 [2022-10-16 13:17:17,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:17,213 INFO L495 AbstractCegarLoop]: Abstraction has 1700 states and 2331 transitions. [2022-10-16 13:17:17,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:17:17,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2331 transitions. [2022-10-16 13:17:17,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 13:17:17,215 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:17,215 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:17,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:17:17,215 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 13:17:17,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:17,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1262853557, now seen corresponding path program 1 times [2022-10-16 13:17:17,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:17,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505237857] [2022-10-16 13:17:17,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:17,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:17,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:17,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:17:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:17,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:17:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:17,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:17:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:17,476 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:17:17,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:17,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505237857] [2022-10-16 13:17:17,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505237857] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:17,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:17,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:17:17,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528104637] [2022-10-16 13:17:17,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:17,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:17,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:17,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:17,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:17:17,480 INFO L87 Difference]: Start difference. First operand 1700 states and 2331 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:17:23,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:26,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:26,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:26,945 INFO L93 Difference]: Finished difference Result 3979 states and 5543 transitions. [2022-10-16 13:17:26,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:17:26,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40 [2022-10-16 13:17:26,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:26,963 INFO L225 Difference]: With dead ends: 3979 [2022-10-16 13:17:26,963 INFO L226 Difference]: Without dead ends: 2311 [2022-10-16 13:17:26,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 13:17:26,973 INFO L413 NwaCegarLoop]: 1581 mSDtfsCounter, 604 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 165 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:26,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 3270 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 796 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2022-10-16 13:17:26,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2022-10-16 13:17:27,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 1722. [2022-10-16 13:17:27,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1190 states have (on average 1.4529411764705882) internal successors, (1729), 1332 states have internal predecessors, (1729), 314 states have call successors, (314), 94 states have call predecessors, (314), 94 states have return successors, (314), 314 states have call predecessors, (314), 314 states have call successors, (314) [2022-10-16 13:17:27,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2357 transitions. [2022-10-16 13:17:27,093 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2357 transitions. Word has length 40 [2022-10-16 13:17:27,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:27,095 INFO L495 AbstractCegarLoop]: Abstraction has 1722 states and 2357 transitions. [2022-10-16 13:17:27,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:17:27,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2357 transitions. [2022-10-16 13:17:27,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-16 13:17:27,101 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:27,105 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-16 13:17:27,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:17:27,105 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 13:17:27,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:27,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1449229483, now seen corresponding path program 1 times [2022-10-16 13:17:27,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:27,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141137681] [2022-10-16 13:17:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:27,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:27,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:27,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:17:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:27,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:17:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:27,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:17:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:27,415 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-10-16 13:17:27,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:27,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141137681] [2022-10-16 13:17:27,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141137681] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:27,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:27,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:17:27,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141620730] [2022-10-16 13:17:27,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:27,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:27,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:27,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:27,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:17:27,420 INFO L87 Difference]: Start difference. First operand 1722 states and 2357 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:17:32,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:35,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:35,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:35,959 INFO L93 Difference]: Finished difference Result 1775 states and 2431 transitions. [2022-10-16 13:17:35,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:17:35,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 46 [2022-10-16 13:17:35,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:35,972 INFO L225 Difference]: With dead ends: 1775 [2022-10-16 13:17:35,972 INFO L226 Difference]: Without dead ends: 1774 [2022-10-16 13:17:35,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 13:17:35,975 INFO L413 NwaCegarLoop]: 1148 mSDtfsCounter, 278 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 162 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:35,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 2485 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 712 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2022-10-16 13:17:35,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2022-10-16 13:17:36,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1721. [2022-10-16 13:17:36,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1190 states have (on average 1.449579831932773) internal successors, (1725), 1331 states have internal predecessors, (1725), 314 states have call successors, (314), 94 states have call predecessors, (314), 94 states have return successors, (314), 314 states have call predecessors, (314), 314 states have call successors, (314) [2022-10-16 13:17:36,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2353 transitions. [2022-10-16 13:17:36,061 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2353 transitions. Word has length 46 [2022-10-16 13:17:36,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:36,061 INFO L495 AbstractCegarLoop]: Abstraction has 1721 states and 2353 transitions. [2022-10-16 13:17:36,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:17:36,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2353 transitions. [2022-10-16 13:17:36,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 13:17:36,062 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:36,063 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-16 13:17:36,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:17:36,063 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 13:17:36,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:36,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1976439345, now seen corresponding path program 1 times [2022-10-16 13:17:36,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:36,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230540941] [2022-10-16 13:17:36,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:36,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:36,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:36,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:17:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:36,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:17:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:36,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:17:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:17:36,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:36,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230540941] [2022-10-16 13:17:36,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230540941] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:17:36,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932879682] [2022-10-16 13:17:36,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:36,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:36,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:17:36,395 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 13:17:36,397 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 13:17:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:36,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:17:36,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:17:36,826 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:17:36,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:17:36,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932879682] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:36,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:17:36,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-16 13:17:36,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963841881] [2022-10-16 13:17:36,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:36,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:36,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:36,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:36,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:17:36,829 INFO L87 Difference]: Start difference. First operand 1721 states and 2353 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:17:37,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:37,198 INFO L93 Difference]: Finished difference Result 1788 states and 2438 transitions. [2022-10-16 13:17:37,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:17:37,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 47 [2022-10-16 13:17:37,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:37,213 INFO L225 Difference]: With dead ends: 1788 [2022-10-16 13:17:37,214 INFO L226 Difference]: Without dead ends: 1787 [2022-10-16 13:17:37,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 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 13:17:37,216 INFO L413 NwaCegarLoop]: 1299 mSDtfsCounter, 710 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:37,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 2181 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:17:37,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2022-10-16 13:17:37,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1682. [2022-10-16 13:17:37,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1682 states, 1158 states have (on average 1.4499136442141622) internal successors, (1679), 1298 states have internal predecessors, (1679), 308 states have call successors, (308), 94 states have call predecessors, (308), 94 states have return successors, (308), 308 states have call predecessors, (308), 308 states have call successors, (308) [2022-10-16 13:17:37,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2295 transitions. [2022-10-16 13:17:37,336 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2295 transitions. Word has length 47 [2022-10-16 13:17:37,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:37,336 INFO L495 AbstractCegarLoop]: Abstraction has 1682 states and 2295 transitions. [2022-10-16 13:17:37,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:17:37,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2295 transitions. [2022-10-16 13:17:37,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 13:17:37,338 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:37,338 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-16 13:17:37,373 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 13:17:37,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-16 13:17:37,552 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 13:17:37,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:37,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1347963223, now seen corresponding path program 1 times [2022-10-16 13:17:37,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:37,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614319273] [2022-10-16 13:17:37,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:37,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:37,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:37,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:17:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:37,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:17:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:37,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:17:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:37,769 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:17:37,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:37,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614319273] [2022-10-16 13:17:37,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614319273] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:37,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:37,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:17:37,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715454763] [2022-10-16 13:17:37,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:37,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:17:37,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:37,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:17:37,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:17:37,774 INFO L87 Difference]: Start difference. First operand 1682 states and 2295 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:17:42,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:44,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:45,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:45,621 INFO L93 Difference]: Finished difference Result 3572 states and 4855 transitions. [2022-10-16 13:17:45,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:17:45,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 49 [2022-10-16 13:17:45,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:45,634 INFO L225 Difference]: With dead ends: 3572 [2022-10-16 13:17:45,634 INFO L226 Difference]: Without dead ends: 1922 [2022-10-16 13:17:45,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:17:45,643 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 1288 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 352 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:45,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 1805 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 596 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-10-16 13:17:45,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2022-10-16 13:17:45,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1846. [2022-10-16 13:17:45,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1846 states, 1270 states have (on average 1.441732283464567) internal successors, (1831), 1414 states have internal predecessors, (1831), 344 states have call successors, (344), 110 states have call predecessors, (344), 110 states have return successors, (344), 344 states have call predecessors, (344), 344 states have call successors, (344) [2022-10-16 13:17:45,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 2519 transitions. [2022-10-16 13:17:45,806 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 2519 transitions. Word has length 49 [2022-10-16 13:17:45,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:45,807 INFO L495 AbstractCegarLoop]: Abstraction has 1846 states and 2519 transitions. [2022-10-16 13:17:45,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 13:17:45,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 2519 transitions. [2022-10-16 13:17:45,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 13:17:45,810 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:45,810 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-16 13:17:45,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 13:17:45,810 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 13:17:45,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:45,811 INFO L85 PathProgramCache]: Analyzing trace with hash 19137346, now seen corresponding path program 1 times [2022-10-16 13:17:45,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:45,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155092151] [2022-10-16 13:17:45,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:45,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:46,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:46,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:17:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:46,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:17:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:46,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:17:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:46,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 13:17:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:46,123 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:17:46,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:46,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155092151] [2022-10-16 13:17:46,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155092151] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:17:46,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042218038] [2022-10-16 13:17:46,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:46,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:17:46,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:17:46,126 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 13:17:46,152 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 13:17:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:46,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:17:46,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:17:46,566 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:17:46,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:17:46,675 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:17:46,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042218038] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:17:46,676 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:17:46,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-16 13:17:46,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295792014] [2022-10-16 13:17:46,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:17:46,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:17:46,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:46,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:17:46,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:17:46,678 INFO L87 Difference]: Start difference. First operand 1846 states and 2519 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:17:53,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:57,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:57,294 INFO L93 Difference]: Finished difference Result 4157 states and 6001 transitions. [2022-10-16 13:17:57,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:17:57,295 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 54 [2022-10-16 13:17:57,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:57,321 INFO L225 Difference]: With dead ends: 4157 [2022-10-16 13:17:57,321 INFO L226 Difference]: Without dead ends: 4156 [2022-10-16 13:17:57,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:17:57,325 INFO L413 NwaCegarLoop]: 1762 mSDtfsCounter, 2970 mSDsluCounter, 3294 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 583 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3258 SdHoareTripleChecker+Valid, 5056 SdHoareTripleChecker+Invalid, 2199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:57,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3258 Valid, 5056 Invalid, 2199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 1615 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-10-16 13:17:57,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4156 states. [2022-10-16 13:17:57,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4156 to 1952. [2022-10-16 13:17:57,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1952 states, 1358 states have (on average 1.4425625920471281) internal successors, (1959), 1502 states have internal predecessors, (1959), 362 states have call successors, (362), 110 states have call predecessors, (362), 110 states have return successors, (362), 362 states have call predecessors, (362), 362 states have call successors, (362) [2022-10-16 13:17:57,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1952 states to 1952 states and 2683 transitions. [2022-10-16 13:17:57,510 INFO L78 Accepts]: Start accepts. Automaton has 1952 states and 2683 transitions. Word has length 54 [2022-10-16 13:17:57,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:57,512 INFO L495 AbstractCegarLoop]: Abstraction has 1952 states and 2683 transitions. [2022-10-16 13:17:57,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:17:57,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1952 states and 2683 transitions. [2022-10-16 13:17:57,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 13:17:57,513 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:57,514 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:57,550 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 13:17:57,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-16 13:17:57,728 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 13:17:57,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:57,729 INFO L85 PathProgramCache]: Analyzing trace with hash -224015976, now seen corresponding path program 1 times [2022-10-16 13:17:57,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:57,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531780271] [2022-10-16 13:17:57,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:57,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:59,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:59,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:17:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:59,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:17:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:59,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:17:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:59,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 13:17:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:59,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-16 13:17:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:59,474 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:17:59,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:59,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531780271] [2022-10-16 13:17:59,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531780271] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:59,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:59,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 13:17:59,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662098132] [2022-10-16 13:17:59,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:59,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:17:59,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:59,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:17:59,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:17:59,477 INFO L87 Difference]: Start difference. First operand 1952 states and 2683 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 13:18:10,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:12,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:15,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:15,536 INFO L93 Difference]: Finished difference Result 3948 states and 5430 transitions. [2022-10-16 13:18:15,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 13:18:15,537 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2022-10-16 13:18:15,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:15,551 INFO L225 Difference]: With dead ends: 3948 [2022-10-16 13:18:15,551 INFO L226 Difference]: Without dead ends: 2028 [2022-10-16 13:18:15,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:18:15,561 INFO L413 NwaCegarLoop]: 1142 mSDtfsCounter, 312 mSDsluCounter, 4070 mSDsCounter, 0 mSdLazyCounter, 2456 mSolverCounterSat, 180 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 5212 SdHoareTripleChecker+Invalid, 2637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:15,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 5212 Invalid, 2637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2456 Invalid, 1 Unknown, 0 Unchecked, 15.8s Time] [2022-10-16 13:18:15,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-10-16 13:18:15,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 1970. [2022-10-16 13:18:15,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1970 states, 1376 states have (on average 1.4396802325581395) internal successors, (1981), 1520 states have internal predecessors, (1981), 362 states have call successors, (362), 110 states have call predecessors, (362), 110 states have return successors, (362), 362 states have call predecessors, (362), 362 states have call successors, (362) [2022-10-16 13:18:15,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1970 states to 1970 states and 2705 transitions. [2022-10-16 13:18:15,677 INFO L78 Accepts]: Start accepts. Automaton has 1970 states and 2705 transitions. Word has length 61 [2022-10-16 13:18:15,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:15,678 INFO L495 AbstractCegarLoop]: Abstraction has 1970 states and 2705 transitions. [2022-10-16 13:18:15,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 13:18:15,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1970 states and 2705 transitions. [2022-10-16 13:18:15,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 13:18:15,679 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:15,679 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:18:15,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 13:18:15,680 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 13:18:15,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:15,680 INFO L85 PathProgramCache]: Analyzing trace with hash 14304179, now seen corresponding path program 1 times [2022-10-16 13:18:15,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:15,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160258357] [2022-10-16 13:18:15,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:15,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:15,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:15,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:18:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:15,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:18:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:15,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:18:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:15,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 13:18:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:15,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:18:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:15,963 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:18:15,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:15,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160258357] [2022-10-16 13:18:15,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160258357] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:18:15,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562570344] [2022-10-16 13:18:15,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:15,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:15,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:18:15,966 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 13:18:15,976 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 13:18:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:16,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:18:16,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:18:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:18:16,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:18:16,482 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:18:16,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562570344] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:18:16,483 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:18:16,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-10-16 13:18:16,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456692171] [2022-10-16 13:18:16,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:18:16,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:18:16,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:16,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:18:16,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:18:16,486 INFO L87 Difference]: Start difference. First operand 1970 states and 2705 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:18:19,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:25,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:25,841 INFO L93 Difference]: Finished difference Result 4188 states and 5781 transitions. [2022-10-16 13:18:25,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:18:25,843 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2022-10-16 13:18:25,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:25,857 INFO L225 Difference]: With dead ends: 4188 [2022-10-16 13:18:25,857 INFO L226 Difference]: Without dead ends: 2268 [2022-10-16 13:18:25,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:18:25,865 INFO L413 NwaCegarLoop]: 1175 mSDtfsCounter, 354 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 175 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 4197 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:25,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 4197 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1536 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2022-10-16 13:18:25,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2268 states. [2022-10-16 13:18:25,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2268 to 2204. [2022-10-16 13:18:25,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 1574 states have (on average 1.426302414231258) internal successors, (2245), 1718 states have internal predecessors, (2245), 398 states have call successors, (398), 110 states have call predecessors, (398), 110 states have return successors, (398), 398 states have call predecessors, (398), 398 states have call successors, (398) [2022-10-16 13:18:25,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 3041 transitions. [2022-10-16 13:18:25,995 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 3041 transitions. Word has length 63 [2022-10-16 13:18:25,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:25,996 INFO L495 AbstractCegarLoop]: Abstraction has 2204 states and 3041 transitions. [2022-10-16 13:18:25,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:18:25,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 3041 transitions. [2022-10-16 13:18:25,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-16 13:18:25,997 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:25,997 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 13:18:26,025 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 13:18:26,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:26,208 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 13:18:26,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:26,209 INFO L85 PathProgramCache]: Analyzing trace with hash 429975124, now seen corresponding path program 1 times [2022-10-16 13:18:26,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:26,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188436727] [2022-10-16 13:18:26,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:26,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:28,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:28,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:18:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:28,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:18:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:28,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:18:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:28,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 13:18:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:28,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 13:18:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:28,462 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 13:18:28,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:28,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188436727] [2022-10-16 13:18:28,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188436727] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:18:28,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659123529] [2022-10-16 13:18:28,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:28,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:18:28,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:18:28,464 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 13:18:28,468 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 13:18:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:28,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 59 conjunts are in the unsatisfiable core [2022-10-16 13:18:28,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:18:29,299 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-16 13:18:29,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-10-16 13:18:29,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 13:18:29,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 13:18:29,738 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 13:18:30,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-10-16 13:18:30,093 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 13:18:30,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:18:31,763 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 13:18:31,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2022-10-16 13:18:31,772 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-10-16 13:18:31,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-16 13:18:32,263 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 13:18:32,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659123529] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:18:32,264 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:18:32,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 35 [2022-10-16 13:18:32,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550791209] [2022-10-16 13:18:32,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:18:32,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 13:18:32,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:32,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 13:18:32,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1124, Unknown=9, NotChecked=0, Total=1260 [2022-10-16 13:18:32,267 INFO L87 Difference]: Start difference. First operand 2204 states and 3041 transitions. Second operand has 36 states, 32 states have (on average 3.15625) internal successors, (101), 27 states have internal predecessors, (101), 10 states have call successors, (25), 14 states have call predecessors, (25), 6 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2022-10-16 13:18:39,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:06,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:08,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:10,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:14,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:16,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:19,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:24,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:19:24,597 INFO L93 Difference]: Finished difference Result 3459 states and 4864 transitions. [2022-10-16 13:19:24,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 13:19:24,598 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 32 states have (on average 3.15625) internal successors, (101), 27 states have internal predecessors, (101), 10 states have call successors, (25), 14 states have call predecessors, (25), 6 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 67 [2022-10-16 13:19:24,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:19:24,617 INFO L225 Difference]: With dead ends: 3459 [2022-10-16 13:19:24,617 INFO L226 Difference]: Without dead ends: 3457 [2022-10-16 13:19:24,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 128 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=407, Invalid=2554, Unknown=9, NotChecked=0, Total=2970 [2022-10-16 13:19:24,621 INFO L413 NwaCegarLoop]: 1171 mSDtfsCounter, 1381 mSDsluCounter, 15506 mSDsCounter, 0 mSdLazyCounter, 12210 mSolverCounterSat, 456 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 16677 SdHoareTripleChecker+Invalid, 15087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 12210 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 2419 IncrementalHoareTripleChecker+Unchecked, 50.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:19:24,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 16677 Invalid, 15087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [456 Valid, 12210 Invalid, 2 Unknown, 2419 Unchecked, 50.7s Time] [2022-10-16 13:19:24,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3457 states. [2022-10-16 13:19:24,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3457 to 2565. [2022-10-16 13:19:24,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2565 states, 1852 states have (on average 1.420086393088553) internal successors, (2630), 2003 states have internal predecessors, (2630), 459 states have call successors, (459), 132 states have call predecessors, (459), 132 states have return successors, (478), 454 states have call predecessors, (478), 459 states have call successors, (478) [2022-10-16 13:19:24,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 3567 transitions. [2022-10-16 13:19:24,873 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 3567 transitions. Word has length 67 [2022-10-16 13:19:24,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:19:24,874 INFO L495 AbstractCegarLoop]: Abstraction has 2565 states and 3567 transitions. [2022-10-16 13:19:24,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 32 states have (on average 3.15625) internal successors, (101), 27 states have internal predecessors, (101), 10 states have call successors, (25), 14 states have call predecessors, (25), 6 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2022-10-16 13:19:24,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 3567 transitions. [2022-10-16 13:19:24,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 13:19:24,875 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:19:24,875 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 13:19:24,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-16 13:19:25,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:19:25,090 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 13:19:25,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:19:25,091 INFO L85 PathProgramCache]: Analyzing trace with hash 132736613, now seen corresponding path program 1 times [2022-10-16 13:19:25,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:19:25,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706800713] [2022-10-16 13:19:25,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:25,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:19:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:27,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:19:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:27,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:19:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:27,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:19:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:27,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:19:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:27,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 13:19:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:27,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 13:19:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:27,341 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:19:27,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:19:27,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706800713] [2022-10-16 13:19:27,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706800713] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:27,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663125797] [2022-10-16 13:19:27,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:27,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:19:27,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:19:27,343 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 13:19:27,368 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 13:19:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:27,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 1413 conjuncts, 52 conjunts are in the unsatisfiable core [2022-10-16 13:19:27,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:19:27,786 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-10-16 13:19:27,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-10-16 13:19:27,806 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-10-16 13:19:28,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 13:19:28,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 13:19:28,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 13:19:28,699 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 13:19:28,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 13:19:28,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-10-16 13:19:28,789 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:19:28,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:19:28,807 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1425 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_pt_detect_~tape___0~0#1.base| v_ArrVal_1425) (select c_~drives~0.base |c_ULTIMATE.start_pt_detect_~unit~0#1|)) (select c_~drives~0.offset |c_ULTIMATE.start_pt_detect_~unit~0#1|)) 0)) is different from false [2022-10-16 13:19:28,820 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1425 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1425) (select c_~drives~0.base |c_ULTIMATE.start_pt_detect_~unit~0#1|)) (select c_~drives~0.offset |c_ULTIMATE.start_pt_detect_~unit~0#1|)) 0)) is different from false [2022-10-16 13:19:28,839 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1425 (Array Int Int))) (= (let ((.cse0 (+ |c_ULTIMATE.start_pt_detect_~unit~0#1| 1))) (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1425) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-16 13:19:28,864 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1425 (Array Int Int)) (v_ArrVal_1421 (Array Int Int))) (= (let ((.cse0 (+ |c_ULTIMATE.start_pt_detect_~unit~0#1| 1))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_pt_detect_~tape___0~0#1.base| v_ArrVal_1421) |c_~#pt~0.base| v_ArrVal_1425) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-16 13:19:28,887 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1425 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1425) (select c_~drives~0.base 1)) (select c_~drives~0.offset 1)) 0)) is different from false [2022-10-16 13:19:28,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663125797] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:28,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 13:19:28,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2022-10-16 13:19:28,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119219439] [2022-10-16 13:19:28,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 13:19:28,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 13:19:28,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:19:28,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 13:19:28,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=226, Unknown=5, NotChecked=170, Total=462 [2022-10-16 13:19:28,966 INFO L87 Difference]: Start difference. First operand 2565 states and 3567 transitions. Second operand has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 16 states have internal predecessors, (73), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 13:19:32,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:45,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:47,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:49,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:51,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:19:51,733 INFO L93 Difference]: Finished difference Result 5061 states and 7039 transitions. [2022-10-16 13:19:51,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 13:19:51,733 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 16 states have internal predecessors, (73), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 65 [2022-10-16 13:19:51,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:19:51,750 INFO L225 Difference]: With dead ends: 5061 [2022-10-16 13:19:51,750 INFO L226 Difference]: Without dead ends: 2592 [2022-10-16 13:19:51,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=308, Unknown=5, NotChecked=200, Total=600 [2022-10-16 13:19:51,760 INFO L413 NwaCegarLoop]: 1143 mSDtfsCounter, 612 mSDsluCounter, 4895 mSDsCounter, 0 mSdLazyCounter, 3377 mSolverCounterSat, 423 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 6038 SdHoareTripleChecker+Invalid, 3802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 3377 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:19:51,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 6038 Invalid, 3802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 3377 Invalid, 2 Unknown, 0 Unchecked, 22.4s Time] [2022-10-16 13:19:51,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2592 states. [2022-10-16 13:19:51,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2592 to 2532. [2022-10-16 13:19:51,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2532 states, 1825 states have (on average 1.4202739726027398) internal successors, (2592), 1976 states have internal predecessors, (2592), 453 states have call successors, (453), 132 states have call predecessors, (453), 132 states have return successors, (470), 448 states have call predecessors, (470), 453 states have call successors, (470) [2022-10-16 13:19:51,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2532 states to 2532 states and 3515 transitions. [2022-10-16 13:19:51,977 INFO L78 Accepts]: Start accepts. Automaton has 2532 states and 3515 transitions. Word has length 65 [2022-10-16 13:19:51,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:19:51,978 INFO L495 AbstractCegarLoop]: Abstraction has 2532 states and 3515 transitions. [2022-10-16 13:19:51,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 16 states have internal predecessors, (73), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 13:19:51,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2532 states and 3515 transitions. [2022-10-16 13:19:51,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 13:19:51,979 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:19:51,979 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-16 13:19:52,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 13:19:52,193 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,SelfDestructingSolverStorable11 [2022-10-16 13:19:52,194 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-16 13:19:52,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:19:52,195 INFO L85 PathProgramCache]: Analyzing trace with hash -833632991, now seen corresponding path program 2 times [2022-10-16 13:19:52,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:19:52,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877335988] [2022-10-16 13:19:52,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:52,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:19:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:55,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:19:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:55,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:19:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:55,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:19:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:55,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:19:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:55,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-16 13:19:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:55,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 13:19:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:55,177 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:19:55,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:19:55,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877335988] [2022-10-16 13:19:55,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877335988] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:55,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317769500] [2022-10-16 13:19:55,178 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:19:55,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:19:55,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:19:55,185 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 13:19:55,211 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 13:19:56,850 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:19:56,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:19:56,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1516 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 13:19:56,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:19:56,886 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-10-16 13:19:56,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-10-16 13:19:56,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-10-16 13:19:57,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 13:19:57,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 13:19:57,581 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 13:19:57,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 13:19:57,738 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 13:19:57,816 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 13:19:57,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 13:19:58,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 13:19:58,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-10-16 13:19:58,078 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 13:19:58,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:19:58,102 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1777 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_pt_detect_~tape___0~0#1.base| v_ArrVal_1777) (select c_~drives~0.base |c_ULTIMATE.start_pt_detect_~unit~0#1|)) (select c_~drives~0.offset |c_ULTIMATE.start_pt_detect_~unit~0#1|)) 0)) is different from false [2022-10-16 13:19:58,117 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1777 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1777) (select c_~drives~0.base |c_ULTIMATE.start_pt_detect_~unit~0#1|)) (select c_~drives~0.offset |c_ULTIMATE.start_pt_detect_~unit~0#1|)) 0)) is different from false [2022-10-16 13:19:58,133 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1777 (Array Int Int))) (= (let ((.cse0 (+ |c_ULTIMATE.start_pt_detect_~unit~0#1| 1))) (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1777) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-16 13:19:58,156 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1777 (Array Int Int)) (v_ArrVal_1774 (Array Int Int))) (= (let ((.cse0 (+ |c_ULTIMATE.start_pt_detect_~unit~0#1| 1))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_pt_detect_~tape___0~0#1.base| v_ArrVal_1774) |c_~#pt~0.base| v_ArrVal_1777) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-16 13:19:58,180 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1777 (Array Int Int))) (= (let ((.cse0 (+ 2 |c_ULTIMATE.start_pt_detect_~unit~0#1|))) (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1777) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-16 13:19:58,205 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1769 (Array Int Int)) (v_ArrVal_1777 (Array Int Int))) (= (let ((.cse0 (+ 2 |c_ULTIMATE.start_pt_detect_~unit~0#1|))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_pt_detect_~tape___0~0#1.base| v_ArrVal_1769) |c_~#pt~0.base| v_ArrVal_1777) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-16 13:19:58,224 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1777 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1777) (select c_~drives~0.base 2)) (select c_~drives~0.offset 2)) 0)) is different from false [2022-10-16 13:19:58,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317769500] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:19:58,285 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 13:19:58,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2022-10-16 13:19:58,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78583725] [2022-10-16 13:19:58,286 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 13:19:58,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 13:19:58,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:19:58,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 13:19:58,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=357, Unknown=7, NotChecked=308, Total=756 [2022-10-16 13:19:58,289 INFO L87 Difference]: Start difference. First operand 2532 states and 3515 transitions. Second operand has 21 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 13:20:19,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:20:24,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []