/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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:05:55,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:05:55,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:05:55,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:05:55,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:05:55,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:05:55,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:05:55,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:05:55,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:05:55,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:05:55,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:05:55,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:05:55,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:05:55,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:05:55,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:05:55,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:05:55,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:05:55,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:05:55,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:05:55,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:05:55,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:05:55,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:05:55,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:05:55,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:05:55,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:05:55,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:05:55,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:05:55,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:05:55,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:05:55,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:05:55,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:05:55,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:05:55,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:05:55,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:05:55,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:05:55,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:05:55,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:05:55,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:05:55,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:05:55,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:05:55,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:05:55,397 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 [2022-10-15 21:05:55,446 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:05:55,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:05:55,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:05:55,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:05:55,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:05:55,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:05:55,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:05:55,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:05:55,453 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:05:55,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:05:55,454 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:05:55,454 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:05:55,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:05:55,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:05:55,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:05:55,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:05:55,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:05:55,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:05:55,456 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:05:55,456 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:05:55,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:05:55,456 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:05:55,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:05:55,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:05:55,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:05:55,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:05:55,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:05:55,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:05:55,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:05:55,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:05:55,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:05:55,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:05:55,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:05:55,459 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:05:55,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:05:55,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:05:55,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:05:55,863 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:05:55,864 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:05:55,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2022-10-15 21:05:55,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/059305882/2a86e156ac1f41818300f6464dcefe3c/FLAGd6f05a313 [2022-10-15 21:05:56,992 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:05:56,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2022-10-15 21:05:57,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/059305882/2a86e156ac1f41818300f6464dcefe3c/FLAGd6f05a313 [2022-10-15 21:05:57,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/059305882/2a86e156ac1f41818300f6464dcefe3c [2022-10-15 21:05:57,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:05:57,463 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:05:57,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:05:57,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:05:57,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:05:57,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:05:57" (1/1) ... [2022-10-15 21:05:57,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec5c43f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:57, skipping insertion in model container [2022-10-15 21:05:57,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:05:57" (1/1) ... [2022-10-15 21:05:57,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:05:57,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:05:58,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i[138616,138629] [2022-10-15 21:05:59,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:05:59,208 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:05:59,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i[138616,138629] [2022-10-15 21:05:59,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:05:59,499 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:05:59,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:59 WrapperNode [2022-10-15 21:05:59,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:05:59,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:05:59,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:05:59,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:05:59,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:59" (1/1) ... [2022-10-15 21:05:59,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:59" (1/1) ... [2022-10-15 21:05:59,661 INFO L138 Inliner]: procedures = 161, calls = 836, calls flagged for inlining = 53, calls inlined = 28, statements flattened = 1160 [2022-10-15 21:05:59,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:05:59,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:05:59,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:05:59,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:05:59,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:59" (1/1) ... [2022-10-15 21:05:59,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:59" (1/1) ... [2022-10-15 21:05:59,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:59" (1/1) ... [2022-10-15 21:05:59,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:59" (1/1) ... [2022-10-15 21:05:59,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:59" (1/1) ... [2022-10-15 21:05:59,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:59" (1/1) ... [2022-10-15 21:05:59,932 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:59" (1/1) ... [2022-10-15 21:05:59,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:59" (1/1) ... [2022-10-15 21:05:59,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:05:59,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:05:59,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:05:59,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:05:59,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:59" (1/1) ... [2022-10-15 21:05:59,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:05:59,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:00,014 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) [2022-10-15 21:06:00,037 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 [2022-10-15 21:06:00,089 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2022-10-15 21:06:00,089 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2022-10-15 21:06:00,089 INFO L130 BoogieDeclarations]: Found specification of procedure pf_getgeo [2022-10-15 21:06:00,089 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_getgeo [2022-10-15 21:06:00,089 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-10-15 21:06:00,090 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-10-15 21:06:00,090 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2022-10-15 21:06:00,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2022-10-15 21:06:00,090 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2022-10-15 21:06:00,090 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2022-10-15 21:06:00,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:06:00,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pf_mutex [2022-10-15 21:06:00,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pf_mutex [2022-10-15 21:06:00,090 INFO L130 BoogieDeclarations]: Found specification of procedure pf_reset [2022-10-15 21:06:00,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_reset [2022-10-15 21:06:00,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:06:00,091 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2022-10-15 21:06:00,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2022-10-15 21:06:00,091 INFO L130 BoogieDeclarations]: Found specification of procedure pf_wait [2022-10-15 21:06:00,131 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_wait [2022-10-15 21:06:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-10-15 21:06:00,131 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-10-15 21:06:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:06:00,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:06:00,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pf_mutex [2022-10-15 21:06:00,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pf_mutex [2022-10-15 21:06:00,132 INFO L130 BoogieDeclarations]: Found specification of procedure pf_check_events [2022-10-15 21:06:00,132 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_check_events [2022-10-15 21:06:00,133 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-10-15 21:06:00,135 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-10-15 21:06:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:06:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:06:00,136 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:06:00,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:06:00,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:06:00,136 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-10-15 21:06:00,136 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-10-15 21:06:00,136 INFO L130 BoogieDeclarations]: Found specification of procedure pf_req_sense [2022-10-15 21:06:00,137 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_req_sense [2022-10-15 21:06:00,137 INFO L130 BoogieDeclarations]: Found specification of procedure pf_completion [2022-10-15 21:06:00,137 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_completion [2022-10-15 21:06:00,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:06:00,137 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-15 21:06:00,138 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-15 21:06:00,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:06:00,139 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-15 21:06:00,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-15 21:06:00,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:06:00,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:06:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure pf_atapi [2022-10-15 21:06:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_atapi [2022-10-15 21:06:00,141 INFO L130 BoogieDeclarations]: Found specification of procedure pf_command [2022-10-15 21:06:00,141 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_command [2022-10-15 21:06:00,141 INFO L130 BoogieDeclarations]: Found specification of procedure pf_probe [2022-10-15 21:06:00,142 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_probe [2022-10-15 21:06:00,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:06:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure pf_identify [2022-10-15 21:06:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_identify [2022-10-15 21:06:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure pf_sleep [2022-10-15 21:06:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_sleep [2022-10-15 21:06:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure pf_mode_sense [2022-10-15 21:06:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_mode_sense [2022-10-15 21:06:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2022-10-15 21:06:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2022-10-15 21:06:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:06:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:06:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2022-10-15 21:06:00,145 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2022-10-15 21:06:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2022-10-15 21:06:00,146 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2022-10-15 21:06:00,146 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2022-10-15 21:06:00,146 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2022-10-15 21:06:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-10-15 21:06:00,147 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-10-15 21:06:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2022-10-15 21:06:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2022-10-15 21:06:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure pf_lock [2022-10-15 21:06:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_lock [2022-10-15 21:06:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:06:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure xl [2022-10-15 21:06:00,149 INFO L138 BoogieDeclarations]: Found implementation of procedure xl [2022-10-15 21:06:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:06:00,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:06:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2022-10-15 21:06:00,149 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2022-10-15 21:06:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ioctl [2022-10-15 21:06:00,150 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ioctl [2022-10-15 21:06:00,665 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:06:00,670 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:06:04,257 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:06:04,281 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:06:04,282 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-15 21:06:04,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:06:04 BoogieIcfgContainer [2022-10-15 21:06:04,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:06:04,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:06:04,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:06:04,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:06:04,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:05:57" (1/3) ... [2022-10-15 21:06:04,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409afff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:06:04, skipping insertion in model container [2022-10-15 21:06:04,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:59" (2/3) ... [2022-10-15 21:06:04,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409afff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:06:04, skipping insertion in model container [2022-10-15 21:06:04,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:06:04" (3/3) ... [2022-10-15 21:06:04,301 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2022-10-15 21:06:04,325 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:06:04,325 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 102 error locations. [2022-10-15 21:06:04,414 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:06:04,422 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;@69fa175b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:06:04,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 102 error locations. [2022-10-15 21:06:04,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 721 states, 471 states have (on average 1.5095541401273886) internal successors, (711), 586 states have internal predecessors, (711), 112 states have call successors, (112), 37 states have call predecessors, (112), 37 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2022-10-15 21:06:04,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 21:06:04,444 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:04,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:04,445 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:04,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:04,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1644164602, now seen corresponding path program 1 times [2022-10-15 21:06:04,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:04,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327683055] [2022-10-15 21:06:04,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:04,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:05,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:05,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:05,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327683055] [2022-10-15 21:06:05,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327683055] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:05,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:05,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:06:05,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040123687] [2022-10-15 21:06:05,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:05,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:05,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:05,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:05,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:05,158 INFO L87 Difference]: Start difference. First operand has 721 states, 471 states have (on average 1.5095541401273886) internal successors, (711), 586 states have internal predecessors, (711), 112 states have call successors, (112), 37 states have call predecessors, (112), 37 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:05,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:05,520 INFO L93 Difference]: Finished difference Result 1444 states and 1916 transitions. [2022-10-15 21:06:05,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:05,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-15 21:06:05,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:05,544 INFO L225 Difference]: With dead ends: 1444 [2022-10-15 21:06:05,545 INFO L226 Difference]: Without dead ends: 707 [2022-10-15 21:06:05,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:05,566 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 12 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:05,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1794 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:06:05,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-10-15 21:06:05,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 705. [2022-10-15 21:06:05,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 463 states have (on average 1.4838012958963283) internal successors, (687), 569 states have internal predecessors, (687), 104 states have call successors, (104), 36 states have call predecessors, (104), 36 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2022-10-15 21:06:05,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 895 transitions. [2022-10-15 21:06:05,695 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 895 transitions. Word has length 15 [2022-10-15 21:06:05,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:05,695 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 895 transitions. [2022-10-15 21:06:05,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:05,696 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 895 transitions. [2022-10-15 21:06:05,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 21:06:05,699 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:05,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:05,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:06:05,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:05,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:05,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1176162298, now seen corresponding path program 1 times [2022-10-15 21:06:05,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:05,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933327374] [2022-10-15 21:06:05,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:05,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:06,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:06:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:06,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:06,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:06,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933327374] [2022-10-15 21:06:06,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933327374] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:06,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:06,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:06:06,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907596149] [2022-10-15 21:06:06,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:06,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:06,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:06,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:06,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:06,032 INFO L87 Difference]: Start difference. First operand 705 states and 895 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:06:06,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:06,260 INFO L93 Difference]: Finished difference Result 1860 states and 2355 transitions. [2022-10-15 21:06:06,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:06,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-10-15 21:06:06,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:06,277 INFO L225 Difference]: With dead ends: 1860 [2022-10-15 21:06:06,277 INFO L226 Difference]: Without dead ends: 1158 [2022-10-15 21:06:06,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:06,286 INFO L413 NwaCegarLoop]: 1280 mSDtfsCounter, 848 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:06,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 1862 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:06:06,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-10-15 21:06:06,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1098. [2022-10-15 21:06:06,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 751 states have (on average 1.470039946737683) internal successors, (1104), 861 states have internal predecessors, (1104), 178 states have call successors, (178), 67 states have call predecessors, (178), 67 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2022-10-15 21:06:06,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1460 transitions. [2022-10-15 21:06:06,428 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1460 transitions. Word has length 19 [2022-10-15 21:06:06,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:06,429 INFO L495 AbstractCegarLoop]: Abstraction has 1098 states and 1460 transitions. [2022-10-15 21:06:06,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:06:06,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1460 transitions. [2022-10-15 21:06:06,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 21:06:06,440 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:06,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:06,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:06:06,441 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:06,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:06,442 INFO L85 PathProgramCache]: Analyzing trace with hash 795535063, now seen corresponding path program 1 times [2022-10-15 21:06:06,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:06,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399643769] [2022-10-15 21:06:06,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:06,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:06,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:06,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:06,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399643769] [2022-10-15 21:06:06,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399643769] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:06,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:06,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:06:06,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594846494] [2022-10-15 21:06:06,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:06,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:06,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:06,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:06,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:06,691 INFO L87 Difference]: Start difference. First operand 1098 states and 1460 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:06,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:06,888 INFO L93 Difference]: Finished difference Result 3242 states and 4310 transitions. [2022-10-15 21:06:06,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:06,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-15 21:06:06,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:06,906 INFO L225 Difference]: With dead ends: 3242 [2022-10-15 21:06:06,906 INFO L226 Difference]: Without dead ends: 2147 [2022-10-15 21:06:06,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:06,914 INFO L413 NwaCegarLoop]: 973 mSDtfsCounter, 835 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:06,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 1823 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:06:06,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2022-10-15 21:06:07,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 2031. [2022-10-15 21:06:07,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 1452 states have (on average 1.4676308539944904) internal successors, (2131), 1571 states have internal predecessors, (2131), 346 states have call successors, (346), 131 states have call predecessors, (346), 131 states have return successors, (346), 346 states have call predecessors, (346), 346 states have call successors, (346) [2022-10-15 21:06:07,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2823 transitions. [2022-10-15 21:06:07,050 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2823 transitions. Word has length 19 [2022-10-15 21:06:07,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:07,051 INFO L495 AbstractCegarLoop]: Abstraction has 2031 states and 2823 transitions. [2022-10-15 21:06:07,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:07,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2823 transitions. [2022-10-15 21:06:07,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-15 21:06:07,053 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:07,053 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:07,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:06:07,054 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:07,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:07,054 INFO L85 PathProgramCache]: Analyzing trace with hash 2031942199, now seen corresponding path program 1 times [2022-10-15 21:06:07,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:07,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739266173] [2022-10-15 21:06:07,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:07,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:07,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:06:07,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:07,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739266173] [2022-10-15 21:06:07,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739266173] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:07,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:07,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:06:07,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082308543] [2022-10-15 21:06:07,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:07,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:07,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:07,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:07,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:07,228 INFO L87 Difference]: Start difference. First operand 2031 states and 2823 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:07,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:07,400 INFO L93 Difference]: Finished difference Result 2031 states and 2823 transitions. [2022-10-15 21:06:07,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:07,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-15 21:06:07,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:07,415 INFO L225 Difference]: With dead ends: 2031 [2022-10-15 21:06:07,416 INFO L226 Difference]: Without dead ends: 2030 [2022-10-15 21:06:07,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:07,422 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 13 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:07,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1731 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:06:07,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2022-10-15 21:06:07,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 2030. [2022-10-15 21:06:07,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2030 states, 1452 states have (on average 1.4662534435261707) internal successors, (2129), 1570 states have internal predecessors, (2129), 346 states have call successors, (346), 131 states have call predecessors, (346), 131 states have return successors, (346), 346 states have call predecessors, (346), 346 states have call successors, (346) [2022-10-15 21:06:07,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2030 states to 2030 states and 2821 transitions. [2022-10-15 21:06:07,597 INFO L78 Accepts]: Start accepts. Automaton has 2030 states and 2821 transitions. Word has length 20 [2022-10-15 21:06:07,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:07,598 INFO L495 AbstractCegarLoop]: Abstraction has 2030 states and 2821 transitions. [2022-10-15 21:06:07,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:07,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2030 states and 2821 transitions. [2022-10-15 21:06:07,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-15 21:06:07,600 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:07,600 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:07,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:06:07,601 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:07,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:07,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1434300209, now seen corresponding path program 1 times [2022-10-15 21:06:07,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:07,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944912155] [2022-10-15 21:06:07,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:07,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:07,870 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:07,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:07,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944912155] [2022-10-15 21:06:07,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944912155] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:07,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935548639] [2022-10-15 21:06:07,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:07,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:07,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:07,878 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) [2022-10-15 21:06:07,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:06:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:08,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:06:08,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:08,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:08,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:06:08,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935548639] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:08,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:06:08,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-15 21:06:08,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133645516] [2022-10-15 21:06:08,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:08,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:06:08,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:08,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:06:08,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:08,354 INFO L87 Difference]: Start difference. First operand 2030 states and 2821 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:08,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:08,875 INFO L93 Difference]: Finished difference Result 2214 states and 3116 transitions. [2022-10-15 21:06:08,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:06:08,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-15 21:06:08,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:08,892 INFO L225 Difference]: With dead ends: 2214 [2022-10-15 21:06:08,892 INFO L226 Difference]: Without dead ends: 2213 [2022-10-15 21:06:08,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:08,895 INFO L413 NwaCegarLoop]: 1016 mSDtfsCounter, 229 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:08,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 2571 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 21:06:08,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2213 states. [2022-10-15 21:06:09,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2213 to 2017. [2022-10-15 21:06:09,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 1440 states have (on average 1.4666666666666666) internal successors, (2112), 1557 states have internal predecessors, (2112), 346 states have call successors, (346), 131 states have call predecessors, (346), 131 states have return successors, (346), 346 states have call predecessors, (346), 346 states have call successors, (346) [2022-10-15 21:06:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2804 transitions. [2022-10-15 21:06:09,047 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2804 transitions. Word has length 21 [2022-10-15 21:06:09,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:09,048 INFO L495 AbstractCegarLoop]: Abstraction has 2017 states and 2804 transitions. [2022-10-15 21:06:09,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:09,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2804 transitions. [2022-10-15 21:06:09,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 21:06:09,049 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:09,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:09,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 21:06:09,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:09,261 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:09,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:09,261 INFO L85 PathProgramCache]: Analyzing trace with hash -596801176, now seen corresponding path program 1 times [2022-10-15 21:06:09,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:09,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498467393] [2022-10-15 21:06:09,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:09,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:09,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 21:06:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:09,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:06:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:09,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:09,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:09,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498467393] [2022-10-15 21:06:09,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498467393] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:09,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:09,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:06:09,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914989973] [2022-10-15 21:06:09,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:09,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:06:09,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:09,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:06:09,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:06:09,412 INFO L87 Difference]: Start difference. First operand 2017 states and 2804 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:06:12,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:12,648 INFO L93 Difference]: Finished difference Result 5057 states and 6982 transitions. [2022-10-15 21:06:12,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:06:12,649 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2022-10-15 21:06:12,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:12,675 INFO L225 Difference]: With dead ends: 5057 [2022-10-15 21:06:12,675 INFO L226 Difference]: Without dead ends: 3043 [2022-10-15 21:06:12,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:12,694 INFO L413 NwaCegarLoop]: 1157 mSDtfsCounter, 1104 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:12,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 1684 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-10-15 21:06:12,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2022-10-15 21:06:12,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 2925. [2022-10-15 21:06:12,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2151 states have (on average 1.4718735471873547) internal successors, (3166), 2274 states have internal predecessors, (3166), 487 states have call successors, (487), 187 states have call predecessors, (487), 187 states have return successors, (487), 487 states have call predecessors, (487), 487 states have call successors, (487) [2022-10-15 21:06:12,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 4140 transitions. [2022-10-15 21:06:12,935 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 4140 transitions. Word has length 24 [2022-10-15 21:06:12,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:12,936 INFO L495 AbstractCegarLoop]: Abstraction has 2925 states and 4140 transitions. [2022-10-15 21:06:12,936 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:06:12,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 4140 transitions. [2022-10-15 21:06:12,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 21:06:12,937 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:12,938 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:06:12,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 21:06:12,938 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:12,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:12,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1255401917, now seen corresponding path program 1 times [2022-10-15 21:06:12,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:12,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134440063] [2022-10-15 21:06:12,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:12,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:13,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:06:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:13,129 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:13,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:13,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134440063] [2022-10-15 21:06:13,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134440063] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:13,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:13,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:06:13,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977583491] [2022-10-15 21:06:13,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:13,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:13,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:13,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:13,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:13,133 INFO L87 Difference]: Start difference. First operand 2925 states and 4140 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:06:13,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:13,386 INFO L93 Difference]: Finished difference Result 5847 states and 8277 transitions. [2022-10-15 21:06:13,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:13,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-10-15 21:06:13,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:13,412 INFO L225 Difference]: With dead ends: 5847 [2022-10-15 21:06:13,412 INFO L226 Difference]: Without dead ends: 2925 [2022-10-15 21:06:13,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:13,432 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 866 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:13,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 875 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:06:13,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-10-15 21:06:13,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2458. [2022-10-15 21:06:13,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 1794 states have (on average 1.4710144927536233) internal successors, (2639), 1913 states have internal predecessors, (2639), 408 states have call successors, (408), 156 states have call predecessors, (408), 156 states have return successors, (408), 408 states have call predecessors, (408), 408 states have call successors, (408) [2022-10-15 21:06:13,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3455 transitions. [2022-10-15 21:06:13,704 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3455 transitions. Word has length 30 [2022-10-15 21:06:13,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:13,705 INFO L495 AbstractCegarLoop]: Abstraction has 2458 states and 3455 transitions. [2022-10-15 21:06:13,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:06:13,706 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3455 transitions. [2022-10-15 21:06:13,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-15 21:06:13,708 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:13,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:13,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 21:06:13,709 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:13,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:13,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1599054918, now seen corresponding path program 1 times [2022-10-15 21:06:13,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:13,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958787943] [2022-10-15 21:06:13,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:13,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:13,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:13,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:13,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958787943] [2022-10-15 21:06:13,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958787943] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:13,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457762665] [2022-10-15 21:06:13,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:13,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:13,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:13,983 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) [2022-10-15 21:06:14,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:06:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:14,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:06:14,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:06:14,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:06:14,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457762665] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:14,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:06:14,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-15 21:06:14,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401549292] [2022-10-15 21:06:14,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:14,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:14,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:14,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:14,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:14,371 INFO L87 Difference]: Start difference. First operand 2458 states and 3455 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:14,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:14,583 INFO L93 Difference]: Finished difference Result 4916 states and 6917 transitions. [2022-10-15 21:06:14,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:14,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-15 21:06:14,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:14,604 INFO L225 Difference]: With dead ends: 4916 [2022-10-15 21:06:14,604 INFO L226 Difference]: Without dead ends: 2461 [2022-10-15 21:06:14,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:14,618 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 22 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:14,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 1702 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:06:14,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2022-10-15 21:06:14,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 2461. [2022-10-15 21:06:14,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2461 states, 1799 states have (on average 1.4669260700389104) internal successors, (2639), 1916 states have internal predecessors, (2639), 408 states have call successors, (408), 156 states have call predecessors, (408), 156 states have return successors, (408), 408 states have call predecessors, (408), 408 states have call successors, (408) [2022-10-15 21:06:14,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 3455 transitions. [2022-10-15 21:06:14,823 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 3455 transitions. Word has length 29 [2022-10-15 21:06:14,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:14,824 INFO L495 AbstractCegarLoop]: Abstraction has 2461 states and 3455 transitions. [2022-10-15 21:06:14,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:14,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 3455 transitions. [2022-10-15 21:06:14,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 21:06:14,827 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:14,827 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:14,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:06:15,043 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 [2022-10-15 21:06:15,045 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:15,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:15,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1328626606, now seen corresponding path program 1 times [2022-10-15 21:06:15,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:15,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306299657] [2022-10-15 21:06:15,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:15,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:15,420 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:15,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:15,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306299657] [2022-10-15 21:06:15,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306299657] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:15,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743163476] [2022-10-15 21:06:15,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:15,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:15,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:15,427 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) [2022-10-15 21:06:15,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:06:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:15,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 1294 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:06:15,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:15,836 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:15,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:06:15,897 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:15,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743163476] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:06:15,898 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:06:15,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-15 21:06:15,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104920048] [2022-10-15 21:06:15,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:06:15,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:06:15,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:15,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:06:15,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:06:15,901 INFO L87 Difference]: Start difference. First operand 2461 states and 3455 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:18,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:18,074 INFO L93 Difference]: Finished difference Result 7619 states and 10436 transitions. [2022-10-15 21:06:18,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:06:18,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-15 21:06:18,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:18,134 INFO L225 Difference]: With dead ends: 7619 [2022-10-15 21:06:18,134 INFO L226 Difference]: Without dead ends: 7618 [2022-10-15 21:06:18,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:06:18,143 INFO L413 NwaCegarLoop]: 1271 mSDtfsCounter, 6513 mSDsluCounter, 2774 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 1038 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6513 SdHoareTripleChecker+Valid, 4045 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1038 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:18,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6513 Valid, 4045 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1038 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-10-15 21:06:18,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7618 states. [2022-10-15 21:06:18,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7618 to 2525. [2022-10-15 21:06:18,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2525 states, 1863 states have (on average 1.4659151905528718) internal successors, (2731), 1980 states have internal predecessors, (2731), 408 states have call successors, (408), 156 states have call predecessors, (408), 156 states have return successors, (408), 408 states have call predecessors, (408), 408 states have call successors, (408) [2022-10-15 21:06:18,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 3547 transitions. [2022-10-15 21:06:18,518 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 3547 transitions. Word has length 30 [2022-10-15 21:06:18,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:18,518 INFO L495 AbstractCegarLoop]: Abstraction has 2525 states and 3547 transitions. [2022-10-15 21:06:18,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:18,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 3547 transitions. [2022-10-15 21:06:18,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 21:06:18,520 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:18,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:18,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:06:18,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:18,734 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:18,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:18,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1968906239, now seen corresponding path program 1 times [2022-10-15 21:06:18,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:18,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837988163] [2022-10-15 21:06:18,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:18,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:18,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:18,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:18,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837988163] [2022-10-15 21:06:18,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837988163] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:18,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610722439] [2022-10-15 21:06:18,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:18,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:18,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:18,992 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) [2022-10-15 21:06:19,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:06:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:19,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:06:19,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:19,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:06:19,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:06:19,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610722439] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:19,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:06:19,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-15 21:06:19,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454980819] [2022-10-15 21:06:19,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:19,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:19,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:19,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:19,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:19,351 INFO L87 Difference]: Start difference. First operand 2525 states and 3547 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:19,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:19,564 INFO L93 Difference]: Finished difference Result 2928 states and 4151 transitions. [2022-10-15 21:06:19,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:19,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-15 21:06:19,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:19,609 INFO L225 Difference]: With dead ends: 2928 [2022-10-15 21:06:19,609 INFO L226 Difference]: Without dead ends: 2926 [2022-10-15 21:06:19,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:19,612 INFO L413 NwaCegarLoop]: 1070 mSDtfsCounter, 198 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1929 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:19,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1929 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:06:19,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2022-10-15 21:06:19,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 2523. [2022-10-15 21:06:19,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 1863 states have (on average 1.4632313472893184) internal successors, (2726), 1978 states have internal predecessors, (2726), 408 states have call successors, (408), 156 states have call predecessors, (408), 156 states have return successors, (408), 408 states have call predecessors, (408), 408 states have call successors, (408) [2022-10-15 21:06:19,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3542 transitions. [2022-10-15 21:06:19,886 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3542 transitions. Word has length 30 [2022-10-15 21:06:19,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:19,886 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 3542 transitions. [2022-10-15 21:06:19,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:19,887 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3542 transitions. [2022-10-15 21:06:19,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-15 21:06:19,887 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:19,888 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:19,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 21:06:20,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:20,103 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:20,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:20,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1762249229, now seen corresponding path program 1 times [2022-10-15 21:06:20,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:20,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396450790] [2022-10-15 21:06:20,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:20,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:20,415 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:20,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:20,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396450790] [2022-10-15 21:06:20,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396450790] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:20,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129279086] [2022-10-15 21:06:20,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:20,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:20,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:20,417 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) [2022-10-15 21:06:20,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:06:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:20,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:06:20,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:20,835 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:20,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:06:20,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129279086] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:20,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:06:20,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-15 21:06:20,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449720690] [2022-10-15 21:06:20,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:20,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:06:20,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:20,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:06:20,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:20,838 INFO L87 Difference]: Start difference. First operand 2523 states and 3542 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:21,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:21,690 INFO L93 Difference]: Finished difference Result 5622 states and 7786 transitions. [2022-10-15 21:06:21,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:06:21,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-10-15 21:06:21,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:21,706 INFO L225 Difference]: With dead ends: 5622 [2022-10-15 21:06:21,706 INFO L226 Difference]: Without dead ends: 3102 [2022-10-15 21:06:21,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:21,719 INFO L413 NwaCegarLoop]: 1679 mSDtfsCounter, 1690 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 2314 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:21,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 2314 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 21:06:21,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2022-10-15 21:06:21,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 2522. [2022-10-15 21:06:21,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2522 states, 1863 states have (on average 1.458937198067633) internal successors, (2718), 1977 states have internal predecessors, (2718), 408 states have call successors, (408), 156 states have call predecessors, (408), 156 states have return successors, (408), 408 states have call predecessors, (408), 408 states have call successors, (408) [2022-10-15 21:06:21,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2522 states to 2522 states and 3534 transitions. [2022-10-15 21:06:21,975 INFO L78 Accepts]: Start accepts. Automaton has 2522 states and 3534 transitions. Word has length 31 [2022-10-15 21:06:21,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:21,975 INFO L495 AbstractCegarLoop]: Abstraction has 2522 states and 3534 transitions. [2022-10-15 21:06:21,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:21,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2522 states and 3534 transitions. [2022-10-15 21:06:21,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-15 21:06:21,977 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:21,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:22,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 21:06:22,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-15 21:06:22,191 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:22,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:22,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1069566156, now seen corresponding path program 1 times [2022-10-15 21:06:22,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:22,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136234838] [2022-10-15 21:06:22,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:22,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:22,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:06:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:22,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:06:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:22,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:22,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136234838] [2022-10-15 21:06:22,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136234838] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:22,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846418600] [2022-10-15 21:06:22,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:22,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:22,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:22,469 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) [2022-10-15 21:06:22,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 21:06:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:22,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:06:22,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:22,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:22,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:06:22,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:22,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846418600] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:06:22,912 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:06:22,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-15 21:06:22,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800891575] [2022-10-15 21:06:22,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:06:22,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:06:22,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:22,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:06:22,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:06:22,915 INFO L87 Difference]: Start difference. First operand 2522 states and 3534 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:06:23,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:23,502 INFO L93 Difference]: Finished difference Result 5191 states and 7269 transitions. [2022-10-15 21:06:23,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:06:23,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 36 [2022-10-15 21:06:23,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:23,515 INFO L225 Difference]: With dead ends: 5191 [2022-10-15 21:06:23,515 INFO L226 Difference]: Without dead ends: 2672 [2022-10-15 21:06:23,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:06:23,530 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 97 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:23,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1750 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 21:06:23,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2022-10-15 21:06:23,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 2672. [2022-10-15 21:06:23,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 2013 states have (on average 1.4426229508196722) internal successors, (2904), 2127 states have internal predecessors, (2904), 408 states have call successors, (408), 156 states have call predecessors, (408), 156 states have return successors, (408), 408 states have call predecessors, (408), 408 states have call successors, (408) [2022-10-15 21:06:23,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 3720 transitions. [2022-10-15 21:06:23,790 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 3720 transitions. Word has length 36 [2022-10-15 21:06:23,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:23,791 INFO L495 AbstractCegarLoop]: Abstraction has 2672 states and 3720 transitions. [2022-10-15 21:06:23,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:06:23,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 3720 transitions. [2022-10-15 21:06:23,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-15 21:06:23,793 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:23,793 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:23,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 21:06:24,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:24,009 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:24,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:24,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1141370435, now seen corresponding path program 2 times [2022-10-15 21:06:24,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:24,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649330441] [2022-10-15 21:06:24,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:24,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:25,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:06:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:25,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 21:06:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:25,896 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-15 21:06:25,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:25,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649330441] [2022-10-15 21:06:25,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649330441] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:25,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:25,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 21:06:25,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97406717] [2022-10-15 21:06:25,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:25,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-15 21:06:25,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:25,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-15 21:06:25,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:06:25,899 INFO L87 Difference]: Start difference. First operand 2672 states and 3720 transitions. Second operand has 9 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:06:35,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:35,773 INFO L93 Difference]: Finished difference Result 3519 states and 4916 transitions. [2022-10-15 21:06:35,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:06:35,774 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2022-10-15 21:06:35,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:35,789 INFO L225 Difference]: With dead ends: 3519 [2022-10-15 21:06:35,790 INFO L226 Difference]: Without dead ends: 3515 [2022-10-15 21:06:35,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-10-15 21:06:35,792 INFO L413 NwaCegarLoop]: 902 mSDtfsCounter, 574 mSDsluCounter, 5636 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 6538 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:35,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 6538 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-10-15 21:06:35,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2022-10-15 21:06:36,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 3165. [2022-10-15 21:06:36,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3165 states, 2410 states have (on average 1.4385892116182573) internal successors, (3467), 2538 states have internal predecessors, (3467), 476 states have call successors, (476), 186 states have call predecessors, (476), 184 states have return successors, (482), 462 states have call predecessors, (482), 476 states have call successors, (482) [2022-10-15 21:06:36,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3165 states to 3165 states and 4425 transitions. [2022-10-15 21:06:36,078 INFO L78 Accepts]: Start accepts. Automaton has 3165 states and 4425 transitions. Word has length 51 [2022-10-15 21:06:36,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:36,079 INFO L495 AbstractCegarLoop]: Abstraction has 3165 states and 4425 transitions. [2022-10-15 21:06:36,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:06:36,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3165 states and 4425 transitions. [2022-10-15 21:06:36,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-15 21:06:36,081 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:36,081 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:36,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 21:06:36,082 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:36,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:36,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1172473854, now seen corresponding path program 1 times [2022-10-15 21:06:36,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:36,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255243563] [2022-10-15 21:06:36,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:36,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:36,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:06:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:36,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:06:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:36,254 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-15 21:06:36,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:36,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255243563] [2022-10-15 21:06:36,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255243563] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:36,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:36,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:06:36,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421628922] [2022-10-15 21:06:36,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:36,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:06:36,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:36,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:06:36,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:06:36,257 INFO L87 Difference]: Start difference. First operand 3165 states and 4425 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:06:39,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:39,552 INFO L93 Difference]: Finished difference Result 6323 states and 8960 transitions. [2022-10-15 21:06:39,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:06:39,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 52 [2022-10-15 21:06:39,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:39,575 INFO L225 Difference]: With dead ends: 6323 [2022-10-15 21:06:39,575 INFO L226 Difference]: Without dead ends: 3654 [2022-10-15 21:06:39,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:06:39,588 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 226 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:39,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 1573 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-15 21:06:39,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2022-10-15 21:06:39,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 3173. [2022-10-15 21:06:39,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3173 states, 2416 states have (on average 1.4375) internal successors, (3473), 2546 states have internal predecessors, (3473), 476 states have call successors, (476), 186 states have call predecessors, (476), 186 states have return successors, (486), 462 states have call predecessors, (486), 476 states have call successors, (486) [2022-10-15 21:06:39,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3173 states to 3173 states and 4435 transitions. [2022-10-15 21:06:39,933 INFO L78 Accepts]: Start accepts. Automaton has 3173 states and 4435 transitions. Word has length 52 [2022-10-15 21:06:39,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:39,933 INFO L495 AbstractCegarLoop]: Abstraction has 3173 states and 4435 transitions. [2022-10-15 21:06:39,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:06:39,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3173 states and 4435 transitions. [2022-10-15 21:06:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-15 21:06:39,935 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:39,935 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:39,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 21:06:39,936 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:39,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:39,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1172475776, now seen corresponding path program 1 times [2022-10-15 21:06:39,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:39,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482900249] [2022-10-15 21:06:39,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:39,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:40,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:06:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:40,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:06:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:40,147 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-15 21:06:40,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:40,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482900249] [2022-10-15 21:06:40,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482900249] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:40,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:40,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:06:40,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733369178] [2022-10-15 21:06:40,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:40,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:06:40,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:40,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:06:40,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:06:40,150 INFO L87 Difference]: Start difference. First operand 3173 states and 4435 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:06:43,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:43,774 INFO L93 Difference]: Finished difference Result 7561 states and 10759 transitions. [2022-10-15 21:06:43,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:06:43,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 52 [2022-10-15 21:06:43,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:43,794 INFO L225 Difference]: With dead ends: 7561 [2022-10-15 21:06:43,795 INFO L226 Difference]: Without dead ends: 4391 [2022-10-15 21:06:43,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:06:43,808 INFO L413 NwaCegarLoop]: 914 mSDtfsCounter, 432 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:43,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 1686 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-15 21:06:43,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4391 states. [2022-10-15 21:06:44,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4391 to 3210. [2022-10-15 21:06:44,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3210 states, 2447 states have (on average 1.4335921536575398) internal successors, (3508), 2575 states have internal predecessors, (3508), 484 states have call successors, (484), 186 states have call predecessors, (484), 186 states have return successors, (494), 470 states have call predecessors, (494), 484 states have call successors, (494) [2022-10-15 21:06:44,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3210 states to 3210 states and 4486 transitions. [2022-10-15 21:06:44,179 INFO L78 Accepts]: Start accepts. Automaton has 3210 states and 4486 transitions. Word has length 52 [2022-10-15 21:06:44,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:44,179 INFO L495 AbstractCegarLoop]: Abstraction has 3210 states and 4486 transitions. [2022-10-15 21:06:44,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:06:44,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3210 states and 4486 transitions. [2022-10-15 21:06:44,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-15 21:06:44,181 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:44,181 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:44,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 21:06:44,181 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pf_resetErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pf_resetErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-10-15 21:06:44,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:44,182 INFO L85 PathProgramCache]: Analyzing trace with hash 894361801, now seen corresponding path program 1 times [2022-10-15 21:06:44,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:44,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626990236] [2022-10-15 21:06:44,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:44,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat