/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--pcd.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:05:53,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:05:53,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:05:53,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:05:53,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:05:53,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:05:53,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:05:53,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:05:53,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:05:53,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:05:53,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:05:53,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:05:53,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:05:53,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:05:53,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:05:53,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:05:53,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:05:53,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:05:53,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:05:53,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:05:53,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:05:53,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:05:53,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:05:53,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:05:53,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:05:53,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:05:53,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:05:53,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:05:53,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:05:53,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:05:53,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:05:53,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:05:53,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:05:53,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:05:53,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:05:53,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:05:53,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:05:53,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:05:53,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:05:53,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:05:53,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:05:53,253 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:05:53,287 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:05:53,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:05:53,288 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:05:53,288 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:05:53,290 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:05:53,291 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:05:53,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:05:53,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:05:53,294 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:05:53,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:05:53,295 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:05:53,295 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:05:53,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:05:53,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:05:53,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:05:53,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:05:53,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:05:53,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:05:53,298 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:05:53,298 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:05:53,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:05:53,298 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:05:53,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:05:53,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:05:53,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:05:53,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:05:53,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:05:53,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:05:53,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:05:53,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:05:53,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:05:53,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:05:53,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:05:53,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:05:53,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:05:53,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:05:53,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:05:53,803 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:05:53,803 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:05:53,805 INFO L432 ainManager$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--pcd.ko-main.cil.out.i [2022-10-15 21:05:53,899 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a55d1eed/6981dc3a427a4eca8af121c8bd58903b/FLAG46061cc7b [2022-10-15 21:05:54,887 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:05:54,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pcd.ko-main.cil.out.i [2022-10-15 21:05:54,930 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a55d1eed/6981dc3a427a4eca8af121c8bd58903b/FLAG46061cc7b [2022-10-15 21:05:55,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a55d1eed/6981dc3a427a4eca8af121c8bd58903b [2022-10-15 21:05:55,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:05:55,383 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:05:55,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:05:55,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:05:55,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:05:55,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:05:55" (1/1) ... [2022-10-15 21:05:55,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7afef621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:55, skipping insertion in model container [2022-10-15 21:05:55,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:05:55" (1/1) ... [2022-10-15 21:05:55,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:05:55,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:05:56,834 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--pcd.ko-main.cil.out.i[148417,148430] [2022-10-15 21:05:56,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:05:56,960 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:05:57,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pcd.ko-main.cil.out.i[148417,148430] [2022-10-15 21:05:57,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:05:57,435 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:05:57,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:57 WrapperNode [2022-10-15 21:05:57,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:05:57,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:05:57,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:05:57,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:05:57,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:57" (1/1) ... [2022-10-15 21:05:57,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:57" (1/1) ... [2022-10-15 21:05:57,686 INFO L138 Inliner]: procedures = 167, calls = 920, calls flagged for inlining = 60, calls inlined = 52, statements flattened = 2016 [2022-10-15 21:05:57,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:05:57,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:05:57,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:05:57,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:05:57,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:57" (1/1) ... [2022-10-15 21:05:57,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:57" (1/1) ... [2022-10-15 21:05:57,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:57" (1/1) ... [2022-10-15 21:05:57,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:57" (1/1) ... [2022-10-15 21:05:57,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:57" (1/1) ... [2022-10-15 21:05:57,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:57" (1/1) ... [2022-10-15 21:05:57,926 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:57" (1/1) ... [2022-10-15 21:05:57,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:57" (1/1) ... [2022-10-15 21:05:57,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:05:57,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:05:57,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:05:57,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:05:57,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:57" (1/1) ... [2022-10-15 21:05:57,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:05:58,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:05:58,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:05:58,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:05:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure do_pcd_request [2022-10-15 21:05:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pcd_request [2022-10-15 21:05:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2022-10-15 21:05:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2022-10-15 21:05:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-10-15 21:05:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-10-15 21:05:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_audio_ioctl [2022-10-15 21:05:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_audio_ioctl [2022-10-15 21:05:58,108 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2022-10-15 21:05:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2022-10-15 21:05:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2022-10-15 21:05:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2022-10-15 21:05:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:05:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure ps_set_intr [2022-10-15 21:05:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ps_set_intr [2022-10-15 21:05:58,109 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_packet [2022-10-15 21:05:58,110 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_packet [2022-10-15 21:05:58,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:05:58,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:05:58,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:05:58,110 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_drive_status [2022-10-15 21:05:58,110 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_drive_status [2022-10-15 21:05:58,110 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-10-15 21:05:58,111 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-10-15 21:05:58,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:05:58,111 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:05:58,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:05:58,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:05:58,111 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-10-15 21:05:58,112 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-10-15 21:05:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_tray_move [2022-10-15 21:05:58,112 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_tray_move [2022-10-15 21:05:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure do_pcd_read [2022-10-15 21:05:58,112 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pcd_read [2022-10-15 21:05:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:05:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:05:58,113 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:05:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_check_events [2022-10-15 21:05:58,113 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_check_events [2022-10-15 21:05:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:05:58,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:05:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_lock_door [2022-10-15 21:05:58,114 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_lock_door [2022-10-15 21:05:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:05:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2022-10-15 21:05:58,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2022-10-15 21:05:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-15 21:05:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-15 21:05:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_block_check_events [2022-10-15 21:05:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_block_check_events [2022-10-15 21:05:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:05:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:05:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_sleep [2022-10-15 21:05:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_sleep [2022-10-15 21:05:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_wait [2022-10-15 21:05:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_wait [2022-10-15 21:05:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:05:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_atapi [2022-10-15 21:05:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_atapi [2022-10-15 21:05:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pcd_mutex [2022-10-15 21:05:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pcd_mutex [2022-10-15 21:05:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_get_mcn [2022-10-15 21:05:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_get_mcn [2022-10-15 21:05:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-15 21:05:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-15 21:05:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:05:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:05:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_identify [2022-10-15 21:05:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_identify [2022-10-15 21:05:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure next_request [2022-10-15 21:05:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure next_request [2022-10-15 21:05:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:05:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:05:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:05:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_probe [2022-10-15 21:05:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_probe [2022-10-15 21:05:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_command [2022-10-15 21:05:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_command [2022-10-15 21:05:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_completion [2022-10-15 21:05:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_completion [2022-10-15 21:05:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:05:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_drive_reset [2022-10-15 21:05:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_drive_reset [2022-10-15 21:05:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:05:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2022-10-15 21:05:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2022-10-15 21:05:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2022-10-15 21:05:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2022-10-15 21:05:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2022-10-15 21:05:58,122 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2022-10-15 21:05:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pcd_mutex [2022-10-15 21:05:58,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pcd_mutex [2022-10-15 21:05:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-10-15 21:05:58,122 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-10-15 21:05:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-15 21:05:58,123 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-15 21:05:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-10-15 21:05:58,123 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-10-15 21:05:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_reset [2022-10-15 21:05:58,123 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_reset [2022-10-15 21:05:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:05:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_block_ioctl [2022-10-15 21:05:58,124 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_block_ioctl [2022-10-15 21:05:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:05:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:05:58,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:05:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure pi_do_claimed [2022-10-15 21:05:58,125 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_do_claimed [2022-10-15 21:05:58,688 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:05:58,705 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:06:05,956 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:06:05,988 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:06:05,989 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-15 21:06:05,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:06:05 BoogieIcfgContainer [2022-10-15 21:06:05,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:06:05,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:06:05,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:06:06,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:06:06,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:05:55" (1/3) ... [2022-10-15 21:06:06,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7254ceb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:06:06, skipping insertion in model container [2022-10-15 21:06:06,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:05:57" (2/3) ... [2022-10-15 21:06:06,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7254ceb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:06:06, skipping insertion in model container [2022-10-15 21:06:06,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:06:05" (3/3) ... [2022-10-15 21:06:06,010 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pcd.ko-main.cil.out.i [2022-10-15 21:06:06,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:06:06,049 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 112 error locations. [2022-10-15 21:06:06,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:06:06,195 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;@5050e33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:06:06,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2022-10-15 21:06:06,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 976 states, 662 states have (on average 1.5030211480362539) internal successors, (995), 797 states have internal predecessors, (995), 160 states have call successors, (160), 46 states have call predecessors, (160), 46 states have return successors, (160), 155 states have call predecessors, (160), 160 states have call successors, (160) [2022-10-15 21:06:06,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 21:06:06,226 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:06,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:06,228 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [pcd_waitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 109 more)] === [2022-10-15 21:06:06,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:06,235 INFO L85 PathProgramCache]: Analyzing trace with hash -925877620, now seen corresponding path program 1 times [2022-10-15 21:06:06,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:06,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510987450] [2022-10-15 21:06:06,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:06,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:07,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:07,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:07,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510987450] [2022-10-15 21:06:07,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510987450] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:07,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:07,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:06:07,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966561240] [2022-10-15 21:06:07,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:07,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:07,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:07,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:07,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:07,103 INFO L87 Difference]: Start difference. First operand has 976 states, 662 states have (on average 1.5030211480362539) internal successors, (995), 797 states have internal predecessors, (995), 160 states have call successors, (160), 46 states have call predecessors, (160), 46 states have return successors, (160), 155 states have call predecessors, (160), 160 states have call successors, (160) Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:07,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:07,612 INFO L93 Difference]: Finished difference Result 1934 states and 2674 transitions. [2022-10-15 21:06:07,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:07,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-15 21:06:07,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:07,652 INFO L225 Difference]: With dead ends: 1934 [2022-10-15 21:06:07,652 INFO L226 Difference]: Without dead ends: 941 [2022-10-15 21:06:07,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:07,676 INFO L413 NwaCegarLoop]: 1249 mSDtfsCounter, 13 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2494 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:07,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2494 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 21:06:07,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-10-15 21:06:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 939. [2022-10-15 21:06:07,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 646 states have (on average 1.4674922600619196) internal successors, (948), 758 states have internal predecessors, (948), 148 states have call successors, (148), 45 states have call predecessors, (148), 45 states have return successors, (148), 143 states have call predecessors, (148), 148 states have call successors, (148) [2022-10-15 21:06:07,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1244 transitions. [2022-10-15 21:06:07,854 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1244 transitions. Word has length 15 [2022-10-15 21:06:07,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:07,858 INFO L495 AbstractCegarLoop]: Abstraction has 939 states and 1244 transitions. [2022-10-15 21:06:07,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:07,858 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1244 transitions. [2022-10-15 21:06:07,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 21:06:07,869 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:07,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:07,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:06:07,870 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [pcd_waitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 109 more)] === [2022-10-15 21:06:07,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:07,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1362567525, now seen corresponding path program 1 times [2022-10-15 21:06:07,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:07,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002889164] [2022-10-15 21:06:07,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:07,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:08,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:08,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:08,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002889164] [2022-10-15 21:06:08,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002889164] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:08,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:08,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:06:08,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857335214] [2022-10-15 21:06:08,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:08,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:08,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:08,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:08,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:08,183 INFO L87 Difference]: Start difference. First operand 939 states and 1244 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:08,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:08,361 INFO L93 Difference]: Finished difference Result 2770 states and 3669 transitions. [2022-10-15 21:06:08,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:08,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2022-10-15 21:06:08,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:08,382 INFO L225 Difference]: With dead ends: 2770 [2022-10-15 21:06:08,383 INFO L226 Difference]: Without dead ends: 1834 [2022-10-15 21:06:08,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:08,392 INFO L413 NwaCegarLoop]: 1551 mSDtfsCounter, 1189 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:08,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 2749 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:06:08,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2022-10-15 21:06:08,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1742. [2022-10-15 21:06:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1742 states, 1262 states have (on average 1.4603803486529319) internal successors, (1843), 1387 states have internal predecessors, (1843), 290 states have call successors, (290), 90 states have call predecessors, (290), 90 states have return successors, (290), 280 states have call predecessors, (290), 290 states have call successors, (290) [2022-10-15 21:06:08,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2423 transitions. [2022-10-15 21:06:08,524 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2423 transitions. Word has length 16 [2022-10-15 21:06:08,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:08,524 INFO L495 AbstractCegarLoop]: Abstraction has 1742 states and 2423 transitions. [2022-10-15 21:06:08,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:08,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2423 transitions. [2022-10-15 21:06:08,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-15 21:06:08,527 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:08,527 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] [2022-10-15 21:06:08,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:06:08,528 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting pcd_commandErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pcd_waitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 109 more)] === [2022-10-15 21:06:08,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:08,529 INFO L85 PathProgramCache]: Analyzing trace with hash -2092143633, now seen corresponding path program 1 times [2022-10-15 21:06:08,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:08,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762230025] [2022-10-15 21:06:08,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:08,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:08,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:06:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:08,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:08,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:08,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762230025] [2022-10-15 21:06:08,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762230025] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:08,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:08,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:06:08,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820007869] [2022-10-15 21:06:08,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:08,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:08,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:08,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:08,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:08,711 INFO L87 Difference]: Start difference. First operand 1742 states and 2423 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:06:09,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:09,086 INFO L93 Difference]: Finished difference Result 4890 states and 6785 transitions. [2022-10-15 21:06:09,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:09,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-10-15 21:06:09,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:09,117 INFO L225 Difference]: With dead ends: 4890 [2022-10-15 21:06:09,118 INFO L226 Difference]: Without dead ends: 3151 [2022-10-15 21:06:09,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:09,143 INFO L413 NwaCegarLoop]: 1601 mSDtfsCounter, 982 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 2768 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:09,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 2768 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:06:09,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3151 states. [2022-10-15 21:06:09,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3151 to 3059. [2022-10-15 21:06:09,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3059 states, 2271 states have (on average 1.4597093791281375) internal successors, (3315), 2420 states have internal predecessors, (3315), 524 states have call successors, (524), 164 states have call predecessors, (524), 164 states have return successors, (524), 504 states have call predecessors, (524), 524 states have call successors, (524) [2022-10-15 21:06:09,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3059 states to 3059 states and 4363 transitions. [2022-10-15 21:06:09,392 INFO L78 Accepts]: Start accepts. Automaton has 3059 states and 4363 transitions. Word has length 21 [2022-10-15 21:06:09,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:09,392 INFO L495 AbstractCegarLoop]: Abstraction has 3059 states and 4363 transitions. [2022-10-15 21:06:09,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:06:09,393 INFO L276 IsEmpty]: Start isEmpty. Operand 3059 states and 4363 transitions. [2022-10-15 21:06:09,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 21:06:09,394 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:09,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:09,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:06:09,398 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [pcd_waitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 109 more)] === [2022-10-15 21:06:09,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:09,399 INFO L85 PathProgramCache]: Analyzing trace with hash -773999363, now seen corresponding path program 1 times [2022-10-15 21:06:09,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:09,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946349127] [2022-10-15 21:06:09,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:09,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:09,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-15 21:06:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:09,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:09,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:09,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946349127] [2022-10-15 21:06:09,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946349127] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:09,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:09,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:06:09,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719983576] [2022-10-15 21:06:09,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:09,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:09,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:09,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:09,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:09,655 INFO L87 Difference]: Start difference. First operand 3059 states and 4363 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:06:10,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:10,059 INFO L93 Difference]: Finished difference Result 8303 states and 11817 transitions. [2022-10-15 21:06:10,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:10,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-10-15 21:06:10,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:10,105 INFO L225 Difference]: With dead ends: 8303 [2022-10-15 21:06:10,105 INFO L226 Difference]: Without dead ends: 5247 [2022-10-15 21:06:10,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:10,125 INFO L413 NwaCegarLoop]: 1750 mSDtfsCounter, 1198 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 2724 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:10,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 2724 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:06:10,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5247 states. [2022-10-15 21:06:10,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5247 to 5119. [2022-10-15 21:06:10,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 3779 states have (on average 1.4559407250595395) internal successors, (5502), 3976 states have internal predecessors, (5502), 940 states have call successors, (940), 300 states have call predecessors, (940), 300 states have return successors, (940), 900 states have call predecessors, (940), 940 states have call successors, (940) [2022-10-15 21:06:10,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 7382 transitions. [2022-10-15 21:06:10,608 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 7382 transitions. Word has length 19 [2022-10-15 21:06:10,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:10,609 INFO L495 AbstractCegarLoop]: Abstraction has 5119 states and 7382 transitions. [2022-10-15 21:06:10,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:06:10,609 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 7382 transitions. [2022-10-15 21:06:10,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-15 21:06:10,610 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:10,611 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:10,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:06:10,611 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [pcd_waitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 109 more)] === [2022-10-15 21:06:10,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:10,612 INFO L85 PathProgramCache]: Analyzing trace with hash 2006107450, now seen corresponding path program 1 times [2022-10-15 21:06:10,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:10,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037171252] [2022-10-15 21:06:10,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:10,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:10,822 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:06:10,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:10,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037171252] [2022-10-15 21:06:10,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037171252] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:10,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:10,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:06:10,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51870257] [2022-10-15 21:06:10,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:10,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:10,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:10,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:10,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:10,826 INFO L87 Difference]: Start difference. First operand 5119 states and 7382 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:11,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:11,272 INFO L93 Difference]: Finished difference Result 5119 states and 7382 transitions. [2022-10-15 21:06:11,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:11,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-15 21:06:11,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:11,314 INFO L225 Difference]: With dead ends: 5119 [2022-10-15 21:06:11,314 INFO L226 Difference]: Without dead ends: 5118 [2022-10-15 21:06:11,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:11,319 INFO L413 NwaCegarLoop]: 1220 mSDtfsCounter, 14 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2426 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:11,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2426 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:06:11,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5118 states. [2022-10-15 21:06:11,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5118 to 5118. [2022-10-15 21:06:11,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5118 states, 3779 states have (on average 1.454882243979889) internal successors, (5498), 3975 states have internal predecessors, (5498), 940 states have call successors, (940), 300 states have call predecessors, (940), 300 states have return successors, (940), 900 states have call predecessors, (940), 940 states have call successors, (940) [2022-10-15 21:06:11,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5118 states to 5118 states and 7378 transitions. [2022-10-15 21:06:11,728 INFO L78 Accepts]: Start accepts. Automaton has 5118 states and 7378 transitions. Word has length 20 [2022-10-15 21:06:11,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:11,729 INFO L495 AbstractCegarLoop]: Abstraction has 5118 states and 7378 transitions. [2022-10-15 21:06:11,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:11,734 INFO L276 IsEmpty]: Start isEmpty. Operand 5118 states and 7378 transitions. [2022-10-15 21:06:11,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-15 21:06:11,736 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:11,736 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:11,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:06:11,738 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [pcd_waitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 109 more)] === [2022-10-15 21:06:11,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:11,739 INFO L85 PathProgramCache]: Analyzing trace with hash 2059790325, now seen corresponding path program 1 times [2022-10-15 21:06:11,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:11,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254181621] [2022-10-15 21:06:11,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:11,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:12,039 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:12,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:12,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254181621] [2022-10-15 21:06:12,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254181621] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:12,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890000578] [2022-10-15 21:06:12,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:12,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:12,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:12,043 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:06:12,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:06:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:12,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:06:12,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:12,545 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:12,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:06:12,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890000578] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:12,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:06:12,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-15 21:06:12,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082690879] [2022-10-15 21:06:12,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:12,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:06:12,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:12,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:06:12,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:12,549 INFO L87 Difference]: Start difference. First operand 5118 states and 7378 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:13,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:13,947 INFO L93 Difference]: Finished difference Result 5673 states and 8298 transitions. [2022-10-15 21:06:13,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:06:13,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-15 21:06:13,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:13,993 INFO L225 Difference]: With dead ends: 5673 [2022-10-15 21:06:13,993 INFO L226 Difference]: Without dead ends: 5672 [2022-10-15 21:06:13,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:14,000 INFO L413 NwaCegarLoop]: 1526 mSDtfsCounter, 365 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 3768 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:14,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 3768 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-15 21:06:14,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5672 states. [2022-10-15 21:06:14,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5672 to 5083. [2022-10-15 21:06:14,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5083 states, 3745 states have (on average 1.4558077436582109) internal successors, (5452), 3940 states have internal predecessors, (5452), 940 states have call successors, (940), 300 states have call predecessors, (940), 300 states have return successors, (940), 900 states have call predecessors, (940), 940 states have call successors, (940) [2022-10-15 21:06:14,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5083 states to 5083 states and 7332 transitions. [2022-10-15 21:06:14,428 INFO L78 Accepts]: Start accepts. Automaton has 5083 states and 7332 transitions. Word has length 21 [2022-10-15 21:06:14,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:14,428 INFO L495 AbstractCegarLoop]: Abstraction has 5083 states and 7332 transitions. [2022-10-15 21:06:14,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:14,429 INFO L276 IsEmpty]: Start isEmpty. Operand 5083 states and 7332 transitions. [2022-10-15 21:06:14,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 21:06:14,432 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:14,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:14,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 21:06:14,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-15 21:06:14,646 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ##fun~~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pcd_waitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 109 more)] === [2022-10-15 21:06:14,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:14,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1245639165, now seen corresponding path program 1 times [2022-10-15 21:06:14,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:14,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775266539] [2022-10-15 21:06:14,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:14,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:14,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 21:06:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:14,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:06:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:14,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:06:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:14,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:14,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:14,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775266539] [2022-10-15 21:06:14,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775266539] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:14,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:14,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:06:14,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642522614] [2022-10-15 21:06:14,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:14,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:14,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:14,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:14,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:14,876 INFO L87 Difference]: Start difference. First operand 5083 states and 7332 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 21:06:15,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:15,393 INFO L93 Difference]: Finished difference Result 13591 states and 19572 transitions. [2022-10-15 21:06:15,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:15,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2022-10-15 21:06:15,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:15,473 INFO L225 Difference]: With dead ends: 13591 [2022-10-15 21:06:15,474 INFO L226 Difference]: Without dead ends: 8511 [2022-10-15 21:06:15,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:15,506 INFO L413 NwaCegarLoop]: 1689 mSDtfsCounter, 967 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 2902 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:15,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 2902 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:06:15,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8511 states. [2022-10-15 21:06:16,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8511 to 8415. [2022-10-15 21:06:16,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8415 states, 6335 states have (on average 1.4576164167324388) internal successors, (9234), 6552 states have internal predecessors, (9234), 1490 states have call successors, (1490), 492 states have call predecessors, (1490), 492 states have return successors, (1490), 1450 states have call predecessors, (1490), 1490 states have call successors, (1490) [2022-10-15 21:06:16,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8415 states to 8415 states and 12214 transitions. [2022-10-15 21:06:16,204 INFO L78 Accepts]: Start accepts. Automaton has 8415 states and 12214 transitions. Word has length 30 [2022-10-15 21:06:16,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:16,205 INFO L495 AbstractCegarLoop]: Abstraction has 8415 states and 12214 transitions. [2022-10-15 21:06:16,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 21:06:16,205 INFO L276 IsEmpty]: Start isEmpty. Operand 8415 states and 12214 transitions. [2022-10-15 21:06:16,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-15 21:06:16,209 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:16,209 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:16,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 21:06:16,210 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting pcd_commandErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pcd_waitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 109 more)] === [2022-10-15 21:06:16,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:16,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1221656181, now seen corresponding path program 1 times [2022-10-15 21:06:16,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:16,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155182081] [2022-10-15 21:06:16,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:16,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:16,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:06:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:16,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:16,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:16,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155182081] [2022-10-15 21:06:16,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155182081] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:16,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:16,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:06:16,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413492985] [2022-10-15 21:06:16,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:16,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:16,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:16,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:16,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:16,394 INFO L87 Difference]: Start difference. First operand 8415 states and 12214 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:06:16,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:16,998 INFO L93 Difference]: Finished difference Result 16827 states and 24425 transitions. [2022-10-15 21:06:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:16,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-10-15 21:06:16,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:17,041 INFO L225 Difference]: With dead ends: 16827 [2022-10-15 21:06:17,042 INFO L226 Difference]: Without dead ends: 8415 [2022-10-15 21:06:17,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:06:17,087 INFO L413 NwaCegarLoop]: 1223 mSDtfsCounter, 1214 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:17,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1214 Valid, 1223 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:06:17,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8415 states. [2022-10-15 21:06:17,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8415 to 6699. [2022-10-15 21:06:17,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6699 states, 5054 states have (on average 1.457657301147606) internal successors, (7367), 5243 states have internal predecessors, (7367), 1162 states have call successors, (1162), 385 states have call predecessors, (1162), 385 states have return successors, (1162), 1132 states have call predecessors, (1162), 1162 states have call successors, (1162) [2022-10-15 21:06:17,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 9691 transitions. [2022-10-15 21:06:17,551 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 9691 transitions. Word has length 32 [2022-10-15 21:06:17,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:17,552 INFO L495 AbstractCegarLoop]: Abstraction has 6699 states and 9691 transitions. [2022-10-15 21:06:17,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:06:17,552 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 9691 transitions. [2022-10-15 21:06:17,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-15 21:06:17,554 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:17,554 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] [2022-10-15 21:06:17,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 21:06:17,555 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [pcd_waitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 109 more)] === [2022-10-15 21:06:17,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:17,556 INFO L85 PathProgramCache]: Analyzing trace with hash 41714458, now seen corresponding path program 1 times [2022-10-15 21:06:17,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:17,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940340295] [2022-10-15 21:06:17,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:17,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:17,994 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:17,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:17,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940340295] [2022-10-15 21:06:17,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940340295] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:17,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486387403] [2022-10-15 21:06:17,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:17,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:17,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:18,001 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:06:18,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:06:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:18,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:06:18,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:18,534 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:18,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:06:18,590 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:18,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486387403] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:06:18,591 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:06:18,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-15 21:06:18,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615581311] [2022-10-15 21:06:18,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:06:18,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:06:18,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:18,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:06:18,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:06:18,593 INFO L87 Difference]: Start difference. First operand 6699 states and 9691 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:22,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:22,819 INFO L93 Difference]: Finished difference Result 21324 states and 30621 transitions. [2022-10-15 21:06:22,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:06:22,820 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 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 28 [2022-10-15 21:06:22,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:22,940 INFO L225 Difference]: With dead ends: 21324 [2022-10-15 21:06:22,940 INFO L226 Difference]: Without dead ends: 21323 [2022-10-15 21:06:22,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:06:22,956 INFO L413 NwaCegarLoop]: 1942 mSDtfsCounter, 7419 mSDsluCounter, 5135 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 875 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7419 SdHoareTripleChecker+Valid, 7077 SdHoareTripleChecker+Invalid, 2654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 875 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:22,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7419 Valid, 7077 Invalid, 2654 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [875 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-15 21:06:22,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21323 states. [2022-10-15 21:06:23,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21323 to 6839. [2022-10-15 21:06:23,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6839 states, 5194 states have (on average 1.4561031959953792) internal successors, (7563), 5383 states have internal predecessors, (7563), 1162 states have call successors, (1162), 385 states have call predecessors, (1162), 385 states have return successors, (1162), 1132 states have call predecessors, (1162), 1162 states have call successors, (1162) [2022-10-15 21:06:23,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6839 states to 6839 states and 9887 transitions. [2022-10-15 21:06:23,865 INFO L78 Accepts]: Start accepts. Automaton has 6839 states and 9887 transitions. Word has length 28 [2022-10-15 21:06:23,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:23,866 INFO L495 AbstractCegarLoop]: Abstraction has 6839 states and 9887 transitions. [2022-10-15 21:06:23,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:23,866 INFO L276 IsEmpty]: Start isEmpty. Operand 6839 states and 9887 transitions. [2022-10-15 21:06:23,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-15 21:06:23,868 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:23,868 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:23,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:06:24,083 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,SelfDestructingSolverStorable8 [2022-10-15 21:06:24,083 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [pcd_waitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 109 more)] === [2022-10-15 21:06:24,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:24,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1293149695, now seen corresponding path program 1 times [2022-10-15 21:06:24,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:24,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284939804] [2022-10-15 21:06:24,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:24,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:24,416 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:24,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:24,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284939804] [2022-10-15 21:06:24,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284939804] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:24,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435138532] [2022-10-15 21:06:24,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:24,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:24,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:24,419 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:06:24,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:06:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:24,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 1374 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:06:24,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:24,912 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:24,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:06:24,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435138532] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:24,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:06:24,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-15 21:06:24,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525416955] [2022-10-15 21:06:24,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:24,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:06:24,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:24,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:06:24,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:24,915 INFO L87 Difference]: Start difference. First operand 6839 states and 9887 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:26,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:26,246 INFO L93 Difference]: Finished difference Result 15498 states and 22307 transitions. [2022-10-15 21:06:26,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:06:26,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-15 21:06:26,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:26,291 INFO L225 Difference]: With dead ends: 15498 [2022-10-15 21:06:26,292 INFO L226 Difference]: Without dead ends: 8662 [2022-10-15 21:06:26,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:26,326 INFO L413 NwaCegarLoop]: 2240 mSDtfsCounter, 2372 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2372 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:26,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2372 Valid, 3138 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 21:06:26,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8662 states. [2022-10-15 21:06:26,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8662 to 6838. [2022-10-15 21:06:26,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6838 states, 5194 states have (on average 1.4530227185213709) internal successors, (7547), 5382 states have internal predecessors, (7547), 1162 states have call successors, (1162), 385 states have call predecessors, (1162), 385 states have return successors, (1162), 1132 states have call predecessors, (1162), 1162 states have call successors, (1162) [2022-10-15 21:06:26,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6838 states to 6838 states and 9871 transitions. [2022-10-15 21:06:26,906 INFO L78 Accepts]: Start accepts. Automaton has 6838 states and 9871 transitions. Word has length 29 [2022-10-15 21:06:26,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:26,906 INFO L495 AbstractCegarLoop]: Abstraction has 6838 states and 9871 transitions. [2022-10-15 21:06:26,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:26,907 INFO L276 IsEmpty]: Start isEmpty. Operand 6838 states and 9871 transitions. [2022-10-15 21:06:26,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 21:06:26,908 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:26,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:26,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:06:27,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:27,124 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [pcd_waitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 109 more)] === [2022-10-15 21:06:27,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:27,125 INFO L85 PathProgramCache]: Analyzing trace with hash 212944525, now seen corresponding path program 1 times [2022-10-15 21:06:27,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:27,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763921344] [2022-10-15 21:06:27,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:27,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:27,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:27,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:27,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763921344] [2022-10-15 21:06:27,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763921344] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:27,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844254156] [2022-10-15 21:06:27,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:27,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:27,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:27,350 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:06:27,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:06:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:27,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:06:27,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:27,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:06:27,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:06:27,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844254156] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:27,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:06:27,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-15 21:06:27,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532357631] [2022-10-15 21:06:27,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:27,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:27,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:27,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:27,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:27,825 INFO L87 Difference]: Start difference. First operand 6838 states and 9871 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:28,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:28,345 INFO L93 Difference]: Finished difference Result 13683 states and 19763 transitions. [2022-10-15 21:06:28,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:28,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-15 21:06:28,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:28,378 INFO L225 Difference]: With dead ends: 13683 [2022-10-15 21:06:28,379 INFO L226 Difference]: Without dead ends: 6848 [2022-10-15 21:06:28,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:28,407 INFO L413 NwaCegarLoop]: 1212 mSDtfsCounter, 21 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:28,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2398 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:06:28,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6848 states. [2022-10-15 21:06:28,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6848 to 6848. [2022-10-15 21:06:28,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6848 states, 5206 states have (on average 1.4496734537072609) internal successors, (7547), 5392 states have internal predecessors, (7547), 1162 states have call successors, (1162), 385 states have call predecessors, (1162), 385 states have return successors, (1162), 1132 states have call predecessors, (1162), 1162 states have call successors, (1162) [2022-10-15 21:06:29,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6848 states to 6848 states and 9871 transitions. [2022-10-15 21:06:29,030 INFO L78 Accepts]: Start accepts. Automaton has 6848 states and 9871 transitions. Word has length 30 [2022-10-15 21:06:29,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:29,031 INFO L495 AbstractCegarLoop]: Abstraction has 6848 states and 9871 transitions. [2022-10-15 21:06:29,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:29,033 INFO L276 IsEmpty]: Start isEmpty. Operand 6848 states and 9871 transitions. [2022-10-15 21:06:29,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-15 21:06:29,036 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:29,036 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] [2022-10-15 21:06:29,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-15 21:06:29,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:29,251 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [pcd_waitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 109 more)] === [2022-10-15 21:06:29,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:29,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1029170601, now seen corresponding path program 1 times [2022-10-15 21:06:29,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:29,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471488146] [2022-10-15 21:06:29,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:29,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:29,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:06:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:29,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:29,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:29,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471488146] [2022-10-15 21:06:29,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471488146] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:29,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23061430] [2022-10-15 21:06:29,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:29,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:29,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:29,513 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:06:29,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:06:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:30,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 1339 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:06:30,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:30,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:06:30,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:06:30,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23061430] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:30,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:06:30,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-15 21:06:30,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951259195] [2022-10-15 21:06:30,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:30,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:30,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:30,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:30,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:30,084 INFO L87 Difference]: Start difference. First operand 6848 states and 9871 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:06:30,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:30,628 INFO L93 Difference]: Finished difference Result 13700 states and 19755 transitions. [2022-10-15 21:06:30,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:30,629 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), 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 32 [2022-10-15 21:06:30,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:30,738 INFO L225 Difference]: With dead ends: 13700 [2022-10-15 21:06:30,738 INFO L226 Difference]: Without dead ends: 6855 [2022-10-15 21:06:30,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:30,759 INFO L413 NwaCegarLoop]: 1216 mSDtfsCounter, 23 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2406 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:30,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2406 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:06:30,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6855 states. [2022-10-15 21:06:31,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6855 to 6855. [2022-10-15 21:06:31,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6855 states, 5214 states have (on average 1.4474491752972765) internal successors, (7547), 5399 states have internal predecessors, (7547), 1162 states have call successors, (1162), 385 states have call predecessors, (1162), 385 states have return successors, (1162), 1132 states have call predecessors, (1162), 1162 states have call successors, (1162) [2022-10-15 21:06:31,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6855 states to 6855 states and 9871 transitions. [2022-10-15 21:06:31,411 INFO L78 Accepts]: Start accepts. Automaton has 6855 states and 9871 transitions. Word has length 32 [2022-10-15 21:06:31,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:31,411 INFO L495 AbstractCegarLoop]: Abstraction has 6855 states and 9871 transitions. [2022-10-15 21:06:31,412 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:06:31,412 INFO L276 IsEmpty]: Start isEmpty. Operand 6855 states and 9871 transitions. [2022-10-15 21:06:31,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-15 21:06:31,413 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:31,414 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] [2022-10-15 21:06:31,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 21:06:31,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-15 21:06:31,627 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [pcd_waitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 109 more)] === [2022-10-15 21:06:31,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:31,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1988652718, now seen corresponding path program 1 times [2022-10-15 21:06:31,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:31,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831838100] [2022-10-15 21:06:31,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:31,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:31,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:31,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:31,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831838100] [2022-10-15 21:06:31,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831838100] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:06:31,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167583253] [2022-10-15 21:06:31,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:31,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:31,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:31,862 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:06:31,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 21:06:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:32,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 1315 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:06:32,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:06:32,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:06:32,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:06:32,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167583253] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:32,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:06:32,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-15 21:06:32,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942062244] [2022-10-15 21:06:32,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:32,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:06:32,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:32,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:06:32,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:32,348 INFO L87 Difference]: Start difference. First operand 6855 states and 9871 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:32,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:32,872 INFO L93 Difference]: Finished difference Result 8262 states and 12089 transitions. [2022-10-15 21:06:32,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:06:32,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-10-15 21:06:32,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:32,912 INFO L225 Difference]: With dead ends: 8262 [2022-10-15 21:06:32,913 INFO L226 Difference]: Without dead ends: 8260 [2022-10-15 21:06:32,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:32,920 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 331 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:32,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 2815 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:06:32,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8260 states. [2022-10-15 21:06:33,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8260 to 6853. [2022-10-15 21:06:33,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6853 states, 5214 states have (on average 1.4451476793248945) internal successors, (7535), 5397 states have internal predecessors, (7535), 1162 states have call successors, (1162), 385 states have call predecessors, (1162), 385 states have return successors, (1162), 1132 states have call predecessors, (1162), 1162 states have call successors, (1162) [2022-10-15 21:06:33,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6853 states to 6853 states and 9859 transitions. [2022-10-15 21:06:33,573 INFO L78 Accepts]: Start accepts. Automaton has 6853 states and 9859 transitions. Word has length 31 [2022-10-15 21:06:33,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:06:33,573 INFO L495 AbstractCegarLoop]: Abstraction has 6853 states and 9859 transitions. [2022-10-15 21:06:33,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:06:33,574 INFO L276 IsEmpty]: Start isEmpty. Operand 6853 states and 9859 transitions. [2022-10-15 21:06:33,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-15 21:06:33,575 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:06:33,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:06:33,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 21:06:33,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:06:33,790 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [pcd_waitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pcd_waitErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 109 more)] === [2022-10-15 21:06:33,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:06:33,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1467818340, now seen corresponding path program 1 times [2022-10-15 21:06:33,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:06:33,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648977526] [2022-10-15 21:06:33,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:06:33,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:06:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:33,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 21:06:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:33,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:06:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:33,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 21:06:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:33,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:06:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:06:33,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:06:33,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:06:33,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648977526] [2022-10-15 21:06:33,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648977526] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:06:33,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:06:33,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:06:33,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97730552] [2022-10-15 21:06:33,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:06:33,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:06:33,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:06:33,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:06:33,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:06:33,927 INFO L87 Difference]: Start difference. First operand 6853 states and 9859 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:06:36,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:06:41,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:06:41,847 INFO L93 Difference]: Finished difference Result 19767 states and 28503 transitions. [2022-10-15 21:06:41,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:06:41,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 36 [2022-10-15 21:06:41,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:06:41,904 INFO L225 Difference]: With dead ends: 19767 [2022-10-15 21:06:41,904 INFO L226 Difference]: Without dead ends: 12917 [2022-10-15 21:06:41,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:06:41,929 INFO L413 NwaCegarLoop]: 1860 mSDtfsCounter, 1572 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 445 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 2804 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:06:41,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 2804 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 1083 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-10-15 21:06:41,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12917 states.