/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 [2022-10-16 12:43:50,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:43:50,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:43:50,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:43:50,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:43:50,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:43:50,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:43:50,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:43:50,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:43:50,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:43:50,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:43:50,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:43:50,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:43:50,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:43:50,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:43:50,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:43:50,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:43:50,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:43:50,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:43:50,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:43:50,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:43:50,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:43:50,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:43:50,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:43:50,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:43:50,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:43:50,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:43:50,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:43:50,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:43:50,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:43:50,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:43:50,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:43:50,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:43:50,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:43:50,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:43:50,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:43:50,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:43:50,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:43:50,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:43:50,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:43:50,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:43:50,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 12:43:50,380 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:43:50,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:43:50,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:43:50,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:43:50,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:43:50,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:43:50,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:43:50,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:43:50,386 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:43:50,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:43:50,388 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:43:50,388 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:43:50,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:43:50,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:43:50,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:43:50,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:43:50,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:43:50,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:43:50,390 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:43:50,390 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:43:50,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:43:50,390 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:43:50,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:43:50,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:43:50,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:43:50,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:43:50,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:43:50,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:43:50,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:43:50,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:43:50,392 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:43:50,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:43:50,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:43:50,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:43:50,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:43:50,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:43:50,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:43:50,864 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:43:50,865 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:43:50,866 INFO L432 ainManager$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 [2022-10-16 12:43:50,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2628f1b12/1d7c76f85436439fac0c31e0d489154e/FLAGf9b83db2d [2022-10-16 12:43:51,895 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:43:51,896 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 [2022-10-16 12:43:51,937 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2628f1b12/1d7c76f85436439fac0c31e0d489154e/FLAGf9b83db2d [2022-10-16 12:43:52,392 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2628f1b12/1d7c76f85436439fac0c31e0d489154e [2022-10-16 12:43:52,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:43:52,401 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:43:52,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:43:52,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:43:52,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:43:52,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:43:52" (1/1) ... [2022-10-16 12:43:52,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c975def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:43:52, skipping insertion in model container [2022-10-16 12:43:52,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:43:52" (1/1) ... [2022-10-16 12:43:52,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:43:52,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:43:53,927 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] [2022-10-16 12:43:54,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:43:54,072 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:43:54,406 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] [2022-10-16 12:43:54,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:43:54,532 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:43:54,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:43:54 WrapperNode [2022-10-16 12:43:54,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:43:54,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:43:54,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:43:54,536 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:43:54,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:43:54" (1/1) ... [2022-10-16 12:43:54,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:43:54" (1/1) ... [2022-10-16 12:43:54,720 INFO L138 Inliner]: procedures = 161, calls = 836, calls flagged for inlining = 53, calls inlined = 28, statements flattened = 1160 [2022-10-16 12:43:54,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:43:54,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:43:54,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:43:54,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:43:54,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:43:54" (1/1) ... [2022-10-16 12:43:54,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:43:54" (1/1) ... [2022-10-16 12:43:54,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:43:54" (1/1) ... [2022-10-16 12:43:54,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:43:54" (1/1) ... [2022-10-16 12:43:54,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:43:54" (1/1) ... [2022-10-16 12:43:54,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:43:54" (1/1) ... [2022-10-16 12:43:54,915 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:43:54" (1/1) ... [2022-10-16 12:43:54,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:43:54" (1/1) ... [2022-10-16 12:43:54,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:43:54,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:43:54,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:43:54,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:43:54,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:43:54" (1/1) ... [2022-10-16 12:43:54,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:43:54,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:43:55,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 12:43:55,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 12:43:55,073 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2022-10-16 12:43:55,073 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2022-10-16 12:43:55,073 INFO L130 BoogieDeclarations]: Found specification of procedure pf_getgeo [2022-10-16 12:43:55,074 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_getgeo [2022-10-16 12:43:55,074 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-10-16 12:43:55,074 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-10-16 12:43:55,074 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2022-10-16 12:43:55,074 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2022-10-16 12:43:55,074 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2022-10-16 12:43:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2022-10-16 12:43:55,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 12:43:55,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pf_mutex [2022-10-16 12:43:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pf_mutex [2022-10-16 12:43:55,075 INFO L130 BoogieDeclarations]: Found specification of procedure pf_reset [2022-10-16 12:43:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_reset [2022-10-16 12:43:55,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:43:55,076 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2022-10-16 12:43:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2022-10-16 12:43:55,076 INFO L130 BoogieDeclarations]: Found specification of procedure pf_wait [2022-10-16 12:43:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_wait [2022-10-16 12:43:55,077 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-10-16 12:43:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-10-16 12:43:55,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 12:43:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 12:43:55,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pf_mutex [2022-10-16 12:43:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pf_mutex [2022-10-16 12:43:55,077 INFO L130 BoogieDeclarations]: Found specification of procedure pf_check_events [2022-10-16 12:43:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_check_events [2022-10-16 12:43:55,078 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-10-16 12:43:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-10-16 12:43:55,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:43:55,078 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 12:43:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 12:43:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 12:43:55,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 12:43:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-10-16 12:43:55,079 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-10-16 12:43:55,079 INFO L130 BoogieDeclarations]: Found specification of procedure pf_req_sense [2022-10-16 12:43:55,079 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_req_sense [2022-10-16 12:43:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure pf_completion [2022-10-16 12:43:55,080 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_completion [2022-10-16 12:43:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 12:43:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-16 12:43:55,080 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-16 12:43:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:43:55,080 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-16 12:43:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-16 12:43:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:43:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 12:43:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure pf_atapi [2022-10-16 12:43:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_atapi [2022-10-16 12:43:55,081 INFO L130 BoogieDeclarations]: Found specification of procedure pf_command [2022-10-16 12:43:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_command [2022-10-16 12:43:55,082 INFO L130 BoogieDeclarations]: Found specification of procedure pf_probe [2022-10-16 12:43:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_probe [2022-10-16 12:43:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 12:43:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure pf_identify [2022-10-16 12:43:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_identify [2022-10-16 12:43:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure pf_sleep [2022-10-16 12:43:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_sleep [2022-10-16 12:43:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure pf_mode_sense [2022-10-16 12:43:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_mode_sense [2022-10-16 12:43:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2022-10-16 12:43:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2022-10-16 12:43:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:43:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 12:43:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2022-10-16 12:43:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2022-10-16 12:43:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2022-10-16 12:43:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2022-10-16 12:43:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2022-10-16 12:43:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2022-10-16 12:43:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-10-16 12:43:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-10-16 12:43:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2022-10-16 12:43:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2022-10-16 12:43:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure pf_lock [2022-10-16 12:43:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_lock [2022-10-16 12:43:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:43:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure xl [2022-10-16 12:43:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure xl [2022-10-16 12:43:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:43:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:43:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2022-10-16 12:43:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2022-10-16 12:43:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure pf_ioctl [2022-10-16 12:43:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure pf_ioctl [2022-10-16 12:43:55,625 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:43:55,629 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:43:59,133 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:43:59,163 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:43:59,163 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 12:43:59,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:43:59 BoogieIcfgContainer [2022-10-16 12:43:59,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:43:59,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:43:59,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:43:59,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:43:59,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:43:52" (1/3) ... [2022-10-16 12:43:59,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232fdc94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:43:59, skipping insertion in model container [2022-10-16 12:43:59,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:43:54" (2/3) ... [2022-10-16 12:43:59,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232fdc94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:43:59, skipping insertion in model container [2022-10-16 12:43:59,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:43:59" (3/3) ... [2022-10-16 12:43:59,182 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pf.ko-main.cil.out.i [2022-10-16 12:43:59,206 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:43:59,206 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 102 error locations. [2022-10-16 12:43:59,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:43:59,305 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;@301e306, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:43:59,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 102 error locations. [2022-10-16 12:43:59,318 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) [2022-10-16 12:43:59,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 12:43:59,331 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:43:59,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:43:59,333 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)] === [2022-10-16 12:43:59,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:43:59,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1644164602, now seen corresponding path program 1 times [2022-10-16 12:43:59,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:43:59,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279505022] [2022-10-16 12:43:59,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:43:59,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:43:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:00,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:00,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:00,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279505022] [2022-10-16 12:44:00,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279505022] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:00,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:00,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:44:00,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092569435] [2022-10-16 12:44:00,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:00,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:00,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:00,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:00,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:00,069 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) [2022-10-16 12:44:00,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:00,516 INFO L93 Difference]: Finished difference Result 1444 states and 1916 transitions. [2022-10-16 12:44:00,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:00,520 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 [2022-10-16 12:44:00,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:00,547 INFO L225 Difference]: With dead ends: 1444 [2022-10-16 12:44:00,547 INFO L226 Difference]: Without dead ends: 707 [2022-10-16 12:44:00,565 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 [2022-10-16 12:44:00,570 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 [2022-10-16 12:44:00,571 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] [2022-10-16 12:44:00,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-10-16 12:44:00,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 705. [2022-10-16 12:44:00,704 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) [2022-10-16 12:44:00,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 895 transitions. [2022-10-16 12:44:00,725 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 895 transitions. Word has length 15 [2022-10-16 12:44:00,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:00,727 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 895 transitions. [2022-10-16 12:44:00,728 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) [2022-10-16 12:44:00,728 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 895 transitions. [2022-10-16 12:44:00,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 12:44:00,738 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:00,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:00,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:44:00,741 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)] === [2022-10-16 12:44:00,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:00,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1176162298, now seen corresponding path program 1 times [2022-10-16 12:44:00,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:00,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331477570] [2022-10-16 12:44:00,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:00,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:01,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:44:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:01,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:01,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:01,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331477570] [2022-10-16 12:44:01,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331477570] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:01,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:01,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:44:01,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009326001] [2022-10-16 12:44:01,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:01,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:01,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:01,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:01,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:01,040 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) [2022-10-16 12:44:01,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:01,204 INFO L93 Difference]: Finished difference Result 1860 states and 2355 transitions. [2022-10-16 12:44:01,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:01,205 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 [2022-10-16 12:44:01,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:01,217 INFO L225 Difference]: With dead ends: 1860 [2022-10-16 12:44:01,217 INFO L226 Difference]: Without dead ends: 1158 [2022-10-16 12:44:01,221 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 [2022-10-16 12:44:01,223 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 [2022-10-16 12:44:01,224 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] [2022-10-16 12:44:01,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-10-16 12:44:01,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1098. [2022-10-16 12:44:01,303 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) [2022-10-16 12:44:01,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1460 transitions. [2022-10-16 12:44:01,315 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1460 transitions. Word has length 19 [2022-10-16 12:44:01,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:01,316 INFO L495 AbstractCegarLoop]: Abstraction has 1098 states and 1460 transitions. [2022-10-16 12:44:01,316 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) [2022-10-16 12:44:01,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1460 transitions. [2022-10-16 12:44:01,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 12:44:01,318 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:01,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:01,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:44:01,319 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)] === [2022-10-16 12:44:01,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:01,320 INFO L85 PathProgramCache]: Analyzing trace with hash 795535063, now seen corresponding path program 1 times [2022-10-16 12:44:01,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:01,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556650317] [2022-10-16 12:44:01,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:01,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:01,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:01,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:01,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556650317] [2022-10-16 12:44:01,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556650317] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:01,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:01,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:44:01,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628554934] [2022-10-16 12:44:01,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:01,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:01,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:01,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:01,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:01,588 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) [2022-10-16 12:44:01,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:01,741 INFO L93 Difference]: Finished difference Result 3242 states and 4310 transitions. [2022-10-16 12:44:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:01,742 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 [2022-10-16 12:44:01,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:01,759 INFO L225 Difference]: With dead ends: 3242 [2022-10-16 12:44:01,759 INFO L226 Difference]: Without dead ends: 2147 [2022-10-16 12:44:01,766 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 [2022-10-16 12:44:01,767 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 [2022-10-16 12:44:01,768 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] [2022-10-16 12:44:01,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2022-10-16 12:44:01,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 2031. [2022-10-16 12:44:01,879 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) [2022-10-16 12:44:01,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2823 transitions. [2022-10-16 12:44:01,898 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2823 transitions. Word has length 19 [2022-10-16 12:44:01,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:01,899 INFO L495 AbstractCegarLoop]: Abstraction has 2031 states and 2823 transitions. [2022-10-16 12:44:01,899 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) [2022-10-16 12:44:01,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2823 transitions. [2022-10-16 12:44:01,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 12:44:01,900 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:01,900 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:01,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:44:01,901 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)] === [2022-10-16 12:44:01,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:01,902 INFO L85 PathProgramCache]: Analyzing trace with hash 2031942199, now seen corresponding path program 1 times [2022-10-16 12:44:01,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:01,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540287099] [2022-10-16 12:44:01,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:01,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:02,056 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 12:44:02,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:02,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540287099] [2022-10-16 12:44:02,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540287099] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:02,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:02,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:44:02,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622243238] [2022-10-16 12:44:02,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:02,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:02,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:02,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:02,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:02,060 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) [2022-10-16 12:44:02,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:02,201 INFO L93 Difference]: Finished difference Result 2031 states and 2823 transitions. [2022-10-16 12:44:02,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:02,202 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 [2022-10-16 12:44:02,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:02,217 INFO L225 Difference]: With dead ends: 2031 [2022-10-16 12:44:02,217 INFO L226 Difference]: Without dead ends: 2030 [2022-10-16 12:44:02,219 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 [2022-10-16 12:44:02,220 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 [2022-10-16 12:44:02,221 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] [2022-10-16 12:44:02,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2022-10-16 12:44:02,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 2030. [2022-10-16 12:44:02,320 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) [2022-10-16 12:44:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2030 states to 2030 states and 2821 transitions. [2022-10-16 12:44:02,338 INFO L78 Accepts]: Start accepts. Automaton has 2030 states and 2821 transitions. Word has length 20 [2022-10-16 12:44:02,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:02,339 INFO L495 AbstractCegarLoop]: Abstraction has 2030 states and 2821 transitions. [2022-10-16 12:44:02,339 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) [2022-10-16 12:44:02,339 INFO L276 IsEmpty]: Start isEmpty. Operand 2030 states and 2821 transitions. [2022-10-16 12:44:02,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 12:44:02,341 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:02,341 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:44:02,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:44:02,341 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)] === [2022-10-16 12:44:02,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:02,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1434300209, now seen corresponding path program 1 times [2022-10-16 12:44:02,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:02,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600235727] [2022-10-16 12:44:02,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:02,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:02,556 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:02,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:02,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600235727] [2022-10-16 12:44:02,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600235727] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:02,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814205162] [2022-10-16 12:44:02,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:02,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:02,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:02,564 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:44:02,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 12:44:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:02,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:44:02,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:02,971 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:02,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:44:02,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814205162] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:02,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:44:02,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 12:44:02,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155864401] [2022-10-16 12:44:02,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:02,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:44:02,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:02,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:44:02,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:02,974 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) [2022-10-16 12:44:03,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:03,489 INFO L93 Difference]: Finished difference Result 2214 states and 3116 transitions. [2022-10-16 12:44:03,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:44:03,489 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 [2022-10-16 12:44:03,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:03,506 INFO L225 Difference]: With dead ends: 2214 [2022-10-16 12:44:03,506 INFO L226 Difference]: Without dead ends: 2213 [2022-10-16 12:44:03,508 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 [2022-10-16 12:44:03,509 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 [2022-10-16 12:44:03,510 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] [2022-10-16 12:44:03,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2213 states. [2022-10-16 12:44:03,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2213 to 2017. [2022-10-16 12:44:03,620 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) [2022-10-16 12:44:03,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2804 transitions. [2022-10-16 12:44:03,639 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2804 transitions. Word has length 21 [2022-10-16 12:44:03,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:03,640 INFO L495 AbstractCegarLoop]: Abstraction has 2017 states and 2804 transitions. [2022-10-16 12:44:03,640 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) [2022-10-16 12:44:03,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2804 transitions. [2022-10-16 12:44:03,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 12:44:03,641 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:03,642 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] [2022-10-16 12:44:03,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 12:44:03,857 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 [2022-10-16 12:44:03,857 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)] === [2022-10-16 12:44:03,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:03,858 INFO L85 PathProgramCache]: Analyzing trace with hash -596801176, now seen corresponding path program 1 times [2022-10-16 12:44:03,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:03,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281834821] [2022-10-16 12:44:03,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:03,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:03,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:44:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:03,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 12:44:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:03,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:03,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:03,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281834821] [2022-10-16 12:44:03,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281834821] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:03,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:03,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:44:03,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022066504] [2022-10-16 12:44:03,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:03,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:44:03,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:03,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:44:03,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:44:03,994 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) [2022-10-16 12:44:06,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:06,931 INFO L93 Difference]: Finished difference Result 5057 states and 6982 transitions. [2022-10-16 12:44:06,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:44:06,932 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 [2022-10-16 12:44:06,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:06,956 INFO L225 Difference]: With dead ends: 5057 [2022-10-16 12:44:06,957 INFO L226 Difference]: Without dead ends: 3043 [2022-10-16 12:44:06,968 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 [2022-10-16 12:44:06,974 INFO L413 NwaCegarLoop]: 1157 mSDtfsCounter, 1104 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.7s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:06,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 1684 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-16 12:44:06,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2022-10-16 12:44:07,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 2925. [2022-10-16 12:44:07,162 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) [2022-10-16 12:44:07,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 4140 transitions. [2022-10-16 12:44:07,181 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 4140 transitions. Word has length 24 [2022-10-16 12:44:07,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:07,182 INFO L495 AbstractCegarLoop]: Abstraction has 2925 states and 4140 transitions. [2022-10-16 12:44:07,182 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) [2022-10-16 12:44:07,182 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 4140 transitions. [2022-10-16 12:44:07,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 12:44:07,184 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:07,184 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] [2022-10-16 12:44:07,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 12:44:07,184 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)] === [2022-10-16 12:44:07,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:07,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1255401917, now seen corresponding path program 1 times [2022-10-16 12:44:07,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:07,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927539328] [2022-10-16 12:44:07,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:07,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:07,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:44:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:07,422 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:07,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:07,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927539328] [2022-10-16 12:44:07,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927539328] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:07,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:07,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:44:07,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327415933] [2022-10-16 12:44:07,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:07,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:07,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:07,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:07,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:44:07,425 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) [2022-10-16 12:44:07,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:07,633 INFO L93 Difference]: Finished difference Result 5847 states and 8277 transitions. [2022-10-16 12:44:07,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:07,634 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 [2022-10-16 12:44:07,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:07,660 INFO L225 Difference]: With dead ends: 5847 [2022-10-16 12:44:07,660 INFO L226 Difference]: Without dead ends: 2925 [2022-10-16 12:44:07,677 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 [2022-10-16 12:44:07,681 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 [2022-10-16 12:44:07,684 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] [2022-10-16 12:44:07,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-10-16 12:44:07,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2458. [2022-10-16 12:44:07,859 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) [2022-10-16 12:44:07,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3455 transitions. [2022-10-16 12:44:07,875 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3455 transitions. Word has length 30 [2022-10-16 12:44:07,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:07,876 INFO L495 AbstractCegarLoop]: Abstraction has 2458 states and 3455 transitions. [2022-10-16 12:44:07,876 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) [2022-10-16 12:44:07,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3455 transitions. [2022-10-16 12:44:07,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 12:44:07,878 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:07,879 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] [2022-10-16 12:44:07,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 12:44:07,879 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)] === [2022-10-16 12:44:07,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:07,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1599054918, now seen corresponding path program 1 times [2022-10-16 12:44:07,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:07,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086531631] [2022-10-16 12:44:07,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:07,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:08,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:08,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:08,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086531631] [2022-10-16 12:44:08,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086531631] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:08,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224228723] [2022-10-16 12:44:08,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:08,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:08,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:08,159 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:44:08,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 12:44:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:08,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:44:08,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:08,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 12:44:08,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:44:08,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224228723] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:08,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:44:08,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 12:44:08,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551210766] [2022-10-16 12:44:08,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:08,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:08,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:08,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:08,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:08,488 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) [2022-10-16 12:44:08,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:08,680 INFO L93 Difference]: Finished difference Result 4916 states and 6917 transitions. [2022-10-16 12:44:08,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:08,680 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 [2022-10-16 12:44:08,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:08,698 INFO L225 Difference]: With dead ends: 4916 [2022-10-16 12:44:08,699 INFO L226 Difference]: Without dead ends: 2461 [2022-10-16 12:44:08,711 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 [2022-10-16 12:44:08,712 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 22 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:08,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 1702 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:44:08,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2022-10-16 12:44:08,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 2461. [2022-10-16 12:44:08,853 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) [2022-10-16 12:44:08,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 3455 transitions. [2022-10-16 12:44:08,874 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 3455 transitions. Word has length 29 [2022-10-16 12:44:08,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:08,874 INFO L495 AbstractCegarLoop]: Abstraction has 2461 states and 3455 transitions. [2022-10-16 12:44:08,874 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) [2022-10-16 12:44:08,875 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 3455 transitions. [2022-10-16 12:44:08,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 12:44:08,875 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:08,876 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] [2022-10-16 12:44:08,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 12:44:09,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-16 12:44:09,089 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)] === [2022-10-16 12:44:09,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:09,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1328626606, now seen corresponding path program 1 times [2022-10-16 12:44:09,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:09,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433696933] [2022-10-16 12:44:09,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:09,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:09,387 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:09,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:09,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433696933] [2022-10-16 12:44:09,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433696933] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:09,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518580994] [2022-10-16 12:44:09,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:09,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:09,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:09,393 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:44:09,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 12:44:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:09,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1294 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:44:09,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:09,809 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:09,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:44:09,854 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:09,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518580994] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:44:09,855 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:44:09,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-16 12:44:09,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075623850] [2022-10-16 12:44:09,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:44:09,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:44:09,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:09,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:44:09,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:44:09,857 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) [2022-10-16 12:44:11,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:11,972 INFO L93 Difference]: Finished difference Result 7619 states and 10436 transitions. [2022-10-16 12:44:11,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:44:11,973 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 [2022-10-16 12:44:11,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:12,025 INFO L225 Difference]: With dead ends: 7619 [2022-10-16 12:44:12,025 INFO L226 Difference]: Without dead ends: 7618 [2022-10-16 12:44:12,030 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 [2022-10-16 12:44:12,030 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 [2022-10-16 12:44:12,031 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] [2022-10-16 12:44:12,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7618 states. [2022-10-16 12:44:12,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7618 to 2525. [2022-10-16 12:44:12,288 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) [2022-10-16 12:44:12,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 3547 transitions. [2022-10-16 12:44:12,301 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 3547 transitions. Word has length 30 [2022-10-16 12:44:12,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:12,302 INFO L495 AbstractCegarLoop]: Abstraction has 2525 states and 3547 transitions. [2022-10-16 12:44:12,302 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) [2022-10-16 12:44:12,302 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 3547 transitions. [2022-10-16 12:44:12,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 12:44:12,303 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:12,303 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] [2022-10-16 12:44:12,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 12:44:12,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:12,520 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)] === [2022-10-16 12:44:12,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:12,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1968906239, now seen corresponding path program 1 times [2022-10-16 12:44:12,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:12,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609289426] [2022-10-16 12:44:12,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:12,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:12,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:12,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:12,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609289426] [2022-10-16 12:44:12,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609289426] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:12,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293165654] [2022-10-16 12:44:12,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:12,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:12,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:12,707 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:44:12,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 12:44:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:13,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:44:13,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 12:44:13,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:44:13,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293165654] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:13,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:44:13,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 12:44:13,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597874226] [2022-10-16 12:44:13,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:13,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:44:13,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:13,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:44:13,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:13,052 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) [2022-10-16 12:44:13,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:13,316 INFO L93 Difference]: Finished difference Result 2928 states and 4151 transitions. [2022-10-16 12:44:13,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:44:13,317 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 [2022-10-16 12:44:13,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:13,338 INFO L225 Difference]: With dead ends: 2928 [2022-10-16 12:44:13,339 INFO L226 Difference]: Without dead ends: 2926 [2022-10-16 12:44:13,341 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 [2022-10-16 12:44:13,342 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 [2022-10-16 12:44:13,344 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] [2022-10-16 12:44:13,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2022-10-16 12:44:13,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 2523. [2022-10-16 12:44:13,588 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) [2022-10-16 12:44:13,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3542 transitions. [2022-10-16 12:44:13,609 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3542 transitions. Word has length 30 [2022-10-16 12:44:13,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:13,612 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 3542 transitions. [2022-10-16 12:44:13,613 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) [2022-10-16 12:44:13,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3542 transitions. [2022-10-16 12:44:13,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 12:44:13,615 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:13,615 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] [2022-10-16 12:44:13,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 12:44:13,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:13,830 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)] === [2022-10-16 12:44:13,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:13,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1762249229, now seen corresponding path program 1 times [2022-10-16 12:44:13,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:13,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564390035] [2022-10-16 12:44:13,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:13,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:14,104 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:14,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:14,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564390035] [2022-10-16 12:44:14,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564390035] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:14,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963893717] [2022-10-16 12:44:14,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:14,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:14,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:14,107 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:44:14,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 12:44:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:14,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:44:14,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:14,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:44:14,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963893717] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:14,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:44:14,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 12:44:14,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746620537] [2022-10-16 12:44:14,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:14,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:44:14,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:14,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:44:14,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:44:14,511 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) [2022-10-16 12:44:15,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:15,325 INFO L93 Difference]: Finished difference Result 5622 states and 7786 transitions. [2022-10-16 12:44:15,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:44:15,326 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 [2022-10-16 12:44:15,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:15,345 INFO L225 Difference]: With dead ends: 5622 [2022-10-16 12:44:15,345 INFO L226 Difference]: Without dead ends: 3102 [2022-10-16 12:44:15,358 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 [2022-10-16 12:44:15,359 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 [2022-10-16 12:44:15,360 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] [2022-10-16 12:44:15,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2022-10-16 12:44:15,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 2522. [2022-10-16 12:44:15,561 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) [2022-10-16 12:44:15,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2522 states to 2522 states and 3534 transitions. [2022-10-16 12:44:15,575 INFO L78 Accepts]: Start accepts. Automaton has 2522 states and 3534 transitions. Word has length 31 [2022-10-16 12:44:15,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:15,575 INFO L495 AbstractCegarLoop]: Abstraction has 2522 states and 3534 transitions. [2022-10-16 12:44:15,575 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) [2022-10-16 12:44:15,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2522 states and 3534 transitions. [2022-10-16 12:44:15,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 12:44:15,576 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:15,577 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] [2022-10-16 12:44:15,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 12:44:15,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 12:44:15,792 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)] === [2022-10-16 12:44:15,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:15,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1069566156, now seen corresponding path program 1 times [2022-10-16 12:44:15,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:15,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177156385] [2022-10-16 12:44:15,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:15,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:15,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 12:44:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:15,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:44:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:15,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:15,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:15,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177156385] [2022-10-16 12:44:15,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177156385] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:44:15,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364351497] [2022-10-16 12:44:15,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:15,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:44:15,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:44:15,996 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:44:16,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 12:44:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:16,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:44:16,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:44:16,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:16,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:44:16,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:44:16,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364351497] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:44:16,395 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:44:16,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 12:44:16,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188710560] [2022-10-16 12:44:16,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:44:16,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:44:16,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:16,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:44:16,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:44:16,397 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) [2022-10-16 12:44:16,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:16,914 INFO L93 Difference]: Finished difference Result 5191 states and 7269 transitions. [2022-10-16 12:44:16,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:44:16,915 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 [2022-10-16 12:44:16,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:16,927 INFO L225 Difference]: With dead ends: 5191 [2022-10-16 12:44:16,927 INFO L226 Difference]: Without dead ends: 2672 [2022-10-16 12:44:16,939 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 [2022-10-16 12:44:16,940 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 [2022-10-16 12:44:16,940 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] [2022-10-16 12:44:16,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2022-10-16 12:44:17,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 2672. [2022-10-16 12:44:17,138 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) [2022-10-16 12:44:17,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 3720 transitions. [2022-10-16 12:44:17,151 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 3720 transitions. Word has length 36 [2022-10-16 12:44:17,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:17,151 INFO L495 AbstractCegarLoop]: Abstraction has 2672 states and 3720 transitions. [2022-10-16 12:44:17,151 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) [2022-10-16 12:44:17,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 3720 transitions. [2022-10-16 12:44:17,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 12:44:17,152 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:17,153 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] [2022-10-16 12:44:17,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 12:44:17,366 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 [2022-10-16 12:44:17,367 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)] === [2022-10-16 12:44:17,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:17,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1141370435, now seen corresponding path program 2 times [2022-10-16 12:44:17,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:17,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086790011] [2022-10-16 12:44:17,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:17,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:19,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 12:44:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:19,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:44:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:19,031 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 12:44:19,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:19,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086790011] [2022-10-16 12:44:19,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086790011] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:19,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:19,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 12:44:19,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701296880] [2022-10-16 12:44:19,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:19,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 12:44:19,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:19,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 12:44:19,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:44:19,035 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) [2022-10-16 12:44:28,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:28,649 INFO L93 Difference]: Finished difference Result 3519 states and 4916 transitions. [2022-10-16 12:44:28,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:44:28,650 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 [2022-10-16 12:44:28,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:28,668 INFO L225 Difference]: With dead ends: 3519 [2022-10-16 12:44:28,668 INFO L226 Difference]: Without dead ends: 3515 [2022-10-16 12:44:28,671 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 [2022-10-16 12:44:28,672 INFO L413 NwaCegarLoop]: 902 mSDtfsCounter, 574 mSDsluCounter, 5636 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s 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, 9.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:28,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 6538 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-10-16 12:44:28,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2022-10-16 12:44:28,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 3165. [2022-10-16 12:44:28,959 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) [2022-10-16 12:44:28,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3165 states to 3165 states and 4425 transitions. [2022-10-16 12:44:28,975 INFO L78 Accepts]: Start accepts. Automaton has 3165 states and 4425 transitions. Word has length 51 [2022-10-16 12:44:28,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:28,975 INFO L495 AbstractCegarLoop]: Abstraction has 3165 states and 4425 transitions. [2022-10-16 12:44:28,976 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) [2022-10-16 12:44:28,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3165 states and 4425 transitions. [2022-10-16 12:44:28,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 12:44:28,977 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:28,978 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] [2022-10-16 12:44:28,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 12:44:28,978 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)] === [2022-10-16 12:44:28,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:28,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1172473854, now seen corresponding path program 1 times [2022-10-16 12:44:28,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:28,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644783846] [2022-10-16 12:44:28,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:28,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:29,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 12:44:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:29,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:44:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:29,161 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 12:44:29,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:29,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644783846] [2022-10-16 12:44:29,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644783846] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:29,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:29,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:44:29,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865190852] [2022-10-16 12:44:29,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:29,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:44:29,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:29,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:44:29,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:44:29,165 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) [2022-10-16 12:44:32,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:32,291 INFO L93 Difference]: Finished difference Result 6323 states and 8960 transitions. [2022-10-16 12:44:32,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:44:32,291 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 [2022-10-16 12:44:32,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:32,311 INFO L225 Difference]: With dead ends: 6323 [2022-10-16 12:44:32,311 INFO L226 Difference]: Without dead ends: 3654 [2022-10-16 12:44:32,327 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 [2022-10-16 12:44:32,328 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 226 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:32,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 1571 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-16 12:44:32,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2022-10-16 12:44:32,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 3173. [2022-10-16 12:44:32,766 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) [2022-10-16 12:44:32,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3173 states to 3173 states and 4435 transitions. [2022-10-16 12:44:32,780 INFO L78 Accepts]: Start accepts. Automaton has 3173 states and 4435 transitions. Word has length 52 [2022-10-16 12:44:32,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:32,781 INFO L495 AbstractCegarLoop]: Abstraction has 3173 states and 4435 transitions. [2022-10-16 12:44:32,781 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) [2022-10-16 12:44:32,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3173 states and 4435 transitions. [2022-10-16 12:44:32,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 12:44:32,782 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:32,783 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] [2022-10-16 12:44:32,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 12:44:32,783 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)] === [2022-10-16 12:44:32,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:32,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1172475776, now seen corresponding path program 1 times [2022-10-16 12:44:32,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:32,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027700215] [2022-10-16 12:44:32,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:32,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:32,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 12:44:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:32,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:44:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:44:32,991 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 12:44:32,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:44:32,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027700215] [2022-10-16 12:44:32,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027700215] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:44:32,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:44:32,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:44:32,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669798832] [2022-10-16 12:44:32,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:44:32,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:44:32,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:44:32,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:44:32,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:44:32,994 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) [2022-10-16 12:44:36,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:44:36,791 INFO L93 Difference]: Finished difference Result 7561 states and 10759 transitions. [2022-10-16 12:44:36,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:44:36,792 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 [2022-10-16 12:44:36,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:44:36,810 INFO L225 Difference]: With dead ends: 7561 [2022-10-16 12:44:36,810 INFO L226 Difference]: Without dead ends: 4391 [2022-10-16 12:44:36,824 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 [2022-10-16 12:44:36,824 INFO L413 NwaCegarLoop]: 915 mSDtfsCounter, 432 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:44:36,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 1688 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-10-16 12:44:36,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4391 states. [2022-10-16 12:44:37,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4391 to 3210. [2022-10-16 12:44:37,173 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) [2022-10-16 12:44:37,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3210 states to 3210 states and 4486 transitions. [2022-10-16 12:44:37,190 INFO L78 Accepts]: Start accepts. Automaton has 3210 states and 4486 transitions. Word has length 52 [2022-10-16 12:44:37,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:44:37,190 INFO L495 AbstractCegarLoop]: Abstraction has 3210 states and 4486 transitions. [2022-10-16 12:44:37,190 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) [2022-10-16 12:44:37,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3210 states and 4486 transitions. [2022-10-16 12:44:37,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 12:44:37,192 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:44:37,192 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] [2022-10-16 12:44:37,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 12:44:37,192 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)] === [2022-10-16 12:44:37,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:44:37,193 INFO L85 PathProgramCache]: Analyzing trace with hash 894361801, now seen corresponding path program 1 times [2022-10-16 12:44:37,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:44:37,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467752324] [2022-10-16 12:44:37,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:44:37,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:44:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat