/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-paride-pt.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:09:30,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:09:30,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:09:30,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:09:30,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:09:30,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:09:31,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:09:31,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:09:31,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:09:31,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:09:31,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:09:31,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:09:31,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:09:31,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:09:31,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:09:31,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:09:31,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:09:31,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:09:31,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:09:31,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:09:31,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:09:31,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:09:31,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:09:31,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:09:31,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:09:31,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:09:31,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:09:31,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:09:31,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:09:31,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:09:31,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:09:31,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:09:31,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:09:31,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:09:31,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:09:31,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:09:31,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:09:31,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:09:31,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:09:31,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:09:31,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:09:31,112 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 21:09:31,168 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:09:31,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:09:31,169 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:09:31,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:09:31,172 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:09:31,172 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:09:31,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:09:31,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:09:31,176 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:09:31,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:09:31,177 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:09:31,178 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:09:31,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:09:31,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:09:31,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:09:31,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:09:31,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:09:31,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:09:31,179 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:09:31,179 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:09:31,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:09:31,180 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:09:31,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:09:31,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:09:31,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:09:31,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:09:31,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:09:31,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:09:31,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:09:31,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:09:31,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:09:31,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:09:31,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:09:31,183 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:09:31,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:09:31,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:09:31,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:09:31,662 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:09:31,663 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:09:31,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-paride-pt.ko.cil.out.i [2022-10-15 21:09:31,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54a4f26a8/1868126e2dad43c49933a348ee500bb1/FLAG1fb707d0b [2022-10-15 21:09:32,943 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:09:32,944 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-paride-pt.ko.cil.out.i [2022-10-15 21:09:32,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54a4f26a8/1868126e2dad43c49933a348ee500bb1/FLAG1fb707d0b [2022-10-15 21:09:33,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54a4f26a8/1868126e2dad43c49933a348ee500bb1 [2022-10-15 21:09:33,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:09:33,393 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:09:33,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:09:33,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:09:33,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:09:33,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:09:33" (1/1) ... [2022-10-15 21:09:33,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c964e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:33, skipping insertion in model container [2022-10-15 21:09:33,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:09:33" (1/1) ... [2022-10-15 21:09:33,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:09:33,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:09:34,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-paride-pt.ko.cil.out.i[119206,119219] [2022-10-15 21:09:34,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:09:34,970 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:09:35,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-paride-pt.ko.cil.out.i[119206,119219] [2022-10-15 21:09:35,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:09:35,491 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:09:35,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:35 WrapperNode [2022-10-15 21:09:35,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:09:35,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:09:35,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:09:35,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:09:35,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:35" (1/1) ... [2022-10-15 21:09:35,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:35" (1/1) ... [2022-10-15 21:09:35,778 INFO L138 Inliner]: procedures = 103, calls = 743, calls flagged for inlining = 32, calls inlined = 30, statements flattened = 1665 [2022-10-15 21:09:35,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:09:35,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:09:35,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:09:35,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:09:35,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:35" (1/1) ... [2022-10-15 21:09:35,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:35" (1/1) ... [2022-10-15 21:09:35,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:35" (1/1) ... [2022-10-15 21:09:35,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:35" (1/1) ... [2022-10-15 21:09:35,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:35" (1/1) ... [2022-10-15 21:09:35,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:35" (1/1) ... [2022-10-15 21:09:35,946 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:35" (1/1) ... [2022-10-15 21:09:35,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:35" (1/1) ... [2022-10-15 21:09:36,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:09:36,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:09:36,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:09:36,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:09:36,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:35" (1/1) ... [2022-10-15 21:09:36,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:09:36,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:09:36,058 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 21:09:36,072 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 21:09:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2022-10-15 21:09:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2022-10-15 21:09:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-10-15 21:09:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-10-15 21:09:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2022-10-15 21:09:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2022-10-15 21:09:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2022-10-15 21:09:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2022-10-15 21:09:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2022-10-15 21:09:36,232 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2022-10-15 21:09:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:09:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2022-10-15 21:09:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2022-10-15 21:09:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-10-15 21:09:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-10-15 21:09:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2022-10-15 21:09:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2022-10-15 21:09:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:09:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:09:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2022-10-15 21:09:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2022-10-15 21:09:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2022-10-15 21:09:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2022-10-15 21:09:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2022-10-15 21:09:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2022-10-15 21:09:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:09:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:09:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:09:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-10-15 21:09:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-10-15 21:09:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:09:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2022-10-15 21:09:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2022-10-15 21:09:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2022-10-15 21:09:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2022-10-15 21:09:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2022-10-15 21:09:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2022-10-15 21:09:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-15 21:09:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-15 21:09:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:09:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-15 21:09:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-15 21:09:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-15 21:09:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-15 21:09:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:09:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:09:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2022-10-15 21:09:36,239 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2022-10-15 21:09:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2022-10-15 21:09:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2022-10-15 21:09:36,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:09:36,241 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2022-10-15 21:09:36,242 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2022-10-15 21:09:36,242 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2022-10-15 21:09:36,242 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2022-10-15 21:09:36,243 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-10-15 21:09:36,243 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-10-15 21:09:36,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-10-15 21:09:36,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-10-15 21:09:36,244 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2022-10-15 21:09:36,244 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2022-10-15 21:09:36,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:09:36,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:09:36,245 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2022-10-15 21:09:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2022-10-15 21:09:36,245 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2022-10-15 21:09:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2022-10-15 21:09:36,246 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:09:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:09:36,247 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2022-10-15 21:09:36,248 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2022-10-15 21:09:36,248 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2022-10-15 21:09:36,249 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2022-10-15 21:09:36,249 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-10-15 21:09:36,249 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-10-15 21:09:36,249 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-15 21:09:36,250 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-15 21:09:36,251 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2022-10-15 21:09:36,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2022-10-15 21:09:36,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:09:36,251 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2022-10-15 21:09:36,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2022-10-15 21:09:36,252 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2022-10-15 21:09:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2022-10-15 21:09:36,252 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-15 21:09:36,252 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-15 21:09:36,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:09:36,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:09:36,254 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2022-10-15 21:09:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2022-10-15 21:09:36,254 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:09:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:09:36,850 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:09:36,857 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:09:43,440 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-15 21:09:43,454 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-15 21:09:43,455 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-15 21:09:45,664 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##232: assume !false;call ULTIMATE.dealloc(pt_ioctl_~#mtop~0#1.base, pt_ioctl_~#mtop~0#1.offset);havoc pt_ioctl_~#mtop~0#1.base, pt_ioctl_~#mtop~0#1.offset; [2022-10-15 21:09:45,665 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##231: assume false; [2022-10-15 21:09:45,665 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##239: assume false; [2022-10-15 21:09:45,665 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##240: assume !false; [2022-10-15 21:09:45,665 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##52: assume !false; [2022-10-15 21:09:45,666 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##51: assume false; [2022-10-15 21:09:45,820 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:09:45,840 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:09:45,840 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-15 21:09:45,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:09:45 BoogieIcfgContainer [2022-10-15 21:09:45,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:09:45,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:09:45,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:09:45,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:09:45,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:09:33" (1/3) ... [2022-10-15 21:09:45,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca4daf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:09:45, skipping insertion in model container [2022-10-15 21:09:45,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:35" (2/3) ... [2022-10-15 21:09:45,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca4daf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:09:45, skipping insertion in model container [2022-10-15 21:09:45,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:09:45" (3/3) ... [2022-10-15 21:09:45,860 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-paride-pt.ko.cil.out.i [2022-10-15 21:09:45,892 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:09:45,893 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 130 error locations. [2022-10-15 21:09:46,027 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:09:46,038 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;@20340f53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:09:46,039 INFO L358 AbstractCegarLoop]: Starting to check reachability of 130 error locations. [2022-10-15 21:09:46,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 909 states, 589 states have (on average 1.533106960950764) internal successors, (903), 735 states have internal predecessors, (903), 153 states have call successors, (153), 40 states have call predecessors, (153), 40 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2022-10-15 21:09:46,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 21:09:46,062 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:46,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:09:46,064 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-15 21:09:46,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:46,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1439479619, now seen corresponding path program 1 times [2022-10-15 21:09:46,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:46,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929576730] [2022-10-15 21:09:46,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:46,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:46,793 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 21:09:46,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:46,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929576730] [2022-10-15 21:09:46,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929576730] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:46,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:46,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:09:46,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41939438] [2022-10-15 21:09:46,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:46,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:09:46,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:46,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:09:46,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:46,848 INFO L87 Difference]: Start difference. First operand has 909 states, 589 states have (on average 1.533106960950764) internal successors, (903), 735 states have internal predecessors, (903), 153 states have call successors, (153), 40 states have call predecessors, (153), 40 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 21:09:47,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:47,218 INFO L93 Difference]: Finished difference Result 1822 states and 2468 transitions. [2022-10-15 21:09:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:09:47,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-10-15 21:09:47,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:47,248 INFO L225 Difference]: With dead ends: 1822 [2022-10-15 21:09:47,248 INFO L226 Difference]: Without dead ends: 908 [2022-10-15 21:09:47,330 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 21:09:47,340 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 17 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:47,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2317 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:09:47,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2022-10-15 21:09:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 904. [2022-10-15 21:09:47,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 584 states have (on average 1.5085616438356164) internal successors, (881), 724 states have internal predecessors, (881), 151 states have call successors, (151), 39 states have call predecessors, (151), 39 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2022-10-15 21:09:47,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1183 transitions. [2022-10-15 21:09:47,517 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1183 transitions. Word has length 9 [2022-10-15 21:09:47,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:47,518 INFO L495 AbstractCegarLoop]: Abstraction has 904 states and 1183 transitions. [2022-10-15 21:09:47,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 21:09:47,519 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1183 transitions. [2022-10-15 21:09:47,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 21:09:47,520 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:47,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:09:47,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:09:47,521 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-15 21:09:47,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:47,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1439479583, now seen corresponding path program 1 times [2022-10-15 21:09:47,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:47,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756111410] [2022-10-15 21:09:47,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:47,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:47,838 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 21:09:47,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:47,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756111410] [2022-10-15 21:09:47,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756111410] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:47,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:47,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:09:47,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215453531] [2022-10-15 21:09:47,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:47,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:09:47,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:47,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:09:47,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:47,846 INFO L87 Difference]: Start difference. First operand 904 states and 1183 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 21:09:47,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:47,982 INFO L93 Difference]: Finished difference Result 2048 states and 2709 transitions. [2022-10-15 21:09:47,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:09:47,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-10-15 21:09:47,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:47,995 INFO L225 Difference]: With dead ends: 2048 [2022-10-15 21:09:47,996 INFO L226 Difference]: Without dead ends: 1281 [2022-10-15 21:09:48,000 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 21:09:48,002 INFO L413 NwaCegarLoop]: 1660 mSDtfsCounter, 401 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 2857 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:48,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 2857 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:09:48,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-10-15 21:09:48,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 915. [2022-10-15 21:09:48,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 595 states have (on average 1.5025210084033613) internal successors, (894), 735 states have internal predecessors, (894), 151 states have call successors, (151), 39 states have call predecessors, (151), 39 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2022-10-15 21:09:48,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1196 transitions. [2022-10-15 21:09:48,069 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1196 transitions. Word has length 9 [2022-10-15 21:09:48,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:48,070 INFO L495 AbstractCegarLoop]: Abstraction has 915 states and 1196 transitions. [2022-10-15 21:09:48,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 21:09:48,070 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1196 transitions. [2022-10-15 21:09:48,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 21:09:48,072 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:48,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:09:48,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:09:48,073 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-15 21:09:48,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:48,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1755360726, now seen corresponding path program 1 times [2022-10-15 21:09:48,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:48,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621319068] [2022-10-15 21:09:48,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:48,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:48,187 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 21:09:48,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:48,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621319068] [2022-10-15 21:09:48,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621319068] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:48,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:48,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:09:48,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819659711] [2022-10-15 21:09:48,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:48,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:09:48,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:48,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:09:48,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:48,191 INFO L87 Difference]: Start difference. First operand 915 states and 1196 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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 21:09:48,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:48,258 INFO L93 Difference]: Finished difference Result 1638 states and 2138 transitions. [2022-10-15 21:09:48,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:09:48,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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 21:09:48,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:48,267 INFO L225 Difference]: With dead ends: 1638 [2022-10-15 21:09:48,268 INFO L226 Difference]: Without dead ends: 915 [2022-10-15 21:09:48,271 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 21:09:48,273 INFO L413 NwaCegarLoop]: 1153 mSDtfsCounter, 1151 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1153 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 21:09:48,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1153 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:09:48,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-10-15 21:09:48,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 915. [2022-10-15 21:09:48,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 595 states have (on average 1.5008403361344538) internal successors, (893), 735 states have internal predecessors, (893), 151 states have call successors, (151), 39 states have call predecessors, (151), 39 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2022-10-15 21:09:48,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1195 transitions. [2022-10-15 21:09:48,329 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1195 transitions. Word has length 15 [2022-10-15 21:09:48,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:48,330 INFO L495 AbstractCegarLoop]: Abstraction has 915 states and 1195 transitions. [2022-10-15 21:09:48,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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 21:09:48,330 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1195 transitions. [2022-10-15 21:09:48,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 21:09:48,331 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:48,331 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:09:48,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:09:48,332 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-15 21:09:48,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:48,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1170321407, now seen corresponding path program 1 times [2022-10-15 21:09:48,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:48,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696501269] [2022-10-15 21:09:48,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:48,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:48,581 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:09:48,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:48,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696501269] [2022-10-15 21:09:48,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696501269] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:48,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:48,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:09:48,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989728477] [2022-10-15 21:09:48,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:48,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:09:48,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:48,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:09:48,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:48,585 INFO L87 Difference]: Start difference. First operand 915 states and 1195 transitions. 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 21:09:48,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:48,761 INFO L93 Difference]: Finished difference Result 915 states and 1195 transitions. [2022-10-15 21:09:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:09:48,762 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 21:09:48,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:48,771 INFO L225 Difference]: With dead ends: 915 [2022-10-15 21:09:48,771 INFO L226 Difference]: Without dead ends: 914 [2022-10-15 21:09:48,776 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 21:09:48,782 INFO L413 NwaCegarLoop]: 1146 mSDtfsCounter, 18 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:48,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2271 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:09:48,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-10-15 21:09:48,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 914. [2022-10-15 21:09:48,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 595 states have (on average 1.4974789915966387) internal successors, (891), 734 states have internal predecessors, (891), 151 states have call successors, (151), 39 states have call predecessors, (151), 39 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2022-10-15 21:09:48,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1193 transitions. [2022-10-15 21:09:48,853 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1193 transitions. Word has length 15 [2022-10-15 21:09:48,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:48,853 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1193 transitions. [2022-10-15 21:09:48,854 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 21:09:48,854 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1193 transitions. [2022-10-15 21:09:48,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 21:09:48,856 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:48,856 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 21:09:48,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:09:48,857 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-15 21:09:48,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:48,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1920224385, now seen corresponding path program 1 times [2022-10-15 21:09:48,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:48,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836361880] [2022-10-15 21:09:48,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:48,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:49,240 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 21:09:49,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:49,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836361880] [2022-10-15 21:09:49,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836361880] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:09:49,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439484474] [2022-10-15 21:09:49,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:49,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:09:49,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:09:49,248 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 21:09:49,272 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 21:09:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:49,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:09:49,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:09:49,805 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 21:09:49,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:09:49,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439484474] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:49,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:09:49,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-15 21:09:49,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439861029] [2022-10-15 21:09:49,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:49,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:09:49,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:49,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:09:49,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:09:49,809 INFO L87 Difference]: Start difference. First operand 914 states and 1193 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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 21:09:50,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:50,266 INFO L93 Difference]: Finished difference Result 916 states and 1193 transitions. [2022-10-15 21:09:50,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:09:50,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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 21:09:50,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:50,277 INFO L225 Difference]: With dead ends: 916 [2022-10-15 21:09:50,278 INFO L226 Difference]: Without dead ends: 915 [2022-10-15 21:09:50,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 21:09:50,289 INFO L413 NwaCegarLoop]: 1165 mSDtfsCounter, 824 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:50,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [898 Valid, 1844 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 21:09:50,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-10-15 21:09:50,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 894. [2022-10-15 21:09:50,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 579 states have (on average 1.4991364421416236) internal successors, (868), 717 states have internal predecessors, (868), 148 states have call successors, (148), 39 states have call predecessors, (148), 39 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) [2022-10-15 21:09:50,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1164 transitions. [2022-10-15 21:09:50,351 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1164 transitions. Word has length 16 [2022-10-15 21:09:50,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:50,356 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1164 transitions. [2022-10-15 21:09:50,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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 21:09:50,357 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1164 transitions. [2022-10-15 21:09:50,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 21:09:50,365 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:50,365 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:09:50,405 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 21:09:50,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:09:50,580 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-15 21:09:50,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:50,581 INFO L85 PathProgramCache]: Analyzing trace with hash 398087822, now seen corresponding path program 1 times [2022-10-15 21:09:50,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:50,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817003391] [2022-10-15 21:09:50,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:50,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:50,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 21:09:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:50,952 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 21:09:50,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:50,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817003391] [2022-10-15 21:09:50,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817003391] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:09:50,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497599146] [2022-10-15 21:09:50,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:50,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:09:50,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:09:50,955 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 21:09:50,985 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 21:09:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:51,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:09:51,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:09:51,436 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 21:09:51,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:09:51,548 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 21:09:51,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497599146] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:09:51,549 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:09:51,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-15 21:09:51,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24421053] [2022-10-15 21:09:51,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:09:51,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:09:51,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:51,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:09:51,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:09:51,551 INFO L87 Difference]: Start difference. First operand 894 states and 1164 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:09:53,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:53,186 INFO L93 Difference]: Finished difference Result 2413 states and 3303 transitions. [2022-10-15 21:09:53,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:09:53,187 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-10-15 21:09:53,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:53,208 INFO L225 Difference]: With dead ends: 2413 [2022-10-15 21:09:53,208 INFO L226 Difference]: Without dead ends: 2412 [2022-10-15 21:09:53,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 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 21:09:53,212 INFO L413 NwaCegarLoop]: 1911 mSDtfsCounter, 2613 mSDsluCounter, 3381 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2883 SdHoareTripleChecker+Valid, 5292 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:53,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2883 Valid, 5292 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-15 21:09:53,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2022-10-15 21:09:53,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 947. [2022-10-15 21:09:53,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 623 states have (on average 1.4959871589085072) internal successors, (932), 761 states have internal predecessors, (932), 157 states have call successors, (157), 39 states have call predecessors, (157), 39 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2022-10-15 21:09:53,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1246 transitions. [2022-10-15 21:09:53,391 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1246 transitions. Word has length 23 [2022-10-15 21:09:53,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:53,392 INFO L495 AbstractCegarLoop]: Abstraction has 947 states and 1246 transitions. [2022-10-15 21:09:53,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:09:53,393 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1246 transitions. [2022-10-15 21:09:53,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-15 21:09:53,394 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:53,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:09:53,444 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 21:09:53,599 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,SelfDestructingSolverStorable5 [2022-10-15 21:09:53,599 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-15 21:09:53,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:53,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1457714941, now seen corresponding path program 1 times [2022-10-15 21:09:53,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:53,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051868520] [2022-10-15 21:09:53,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:53,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:55,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 21:09:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:55,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:09:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:55,162 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 21:09:55,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:55,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051868520] [2022-10-15 21:09:55,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051868520] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:55,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:55,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:09:55,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598747525] [2022-10-15 21:09:55,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:55,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:09:55,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:55,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:09:55,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:09:55,165 INFO L87 Difference]: Start difference. First operand 947 states and 1246 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:10:02,645 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 21:10:04,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:10:06,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:10:08,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:10:10,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:10:10,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:10:10,556 INFO L93 Difference]: Finished difference Result 1887 states and 2484 transitions. [2022-10-15 21:10:10,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:10:10,557 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-10-15 21:10:10,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:10:10,567 INFO L225 Difference]: With dead ends: 1887 [2022-10-15 21:10:10,567 INFO L226 Difference]: Without dead ends: 952 [2022-10-15 21:10:10,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:10:10,575 INFO L413 NwaCegarLoop]: 1146 mSDtfsCounter, 4 mSDsluCounter, 4329 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5475 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:10:10,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5475 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 277 Invalid, 3 Unknown, 0 Unchecked, 15.1s Time] [2022-10-15 21:10:10,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-10-15 21:10:10,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 950. [2022-10-15 21:10:10,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 626 states have (on average 1.4936102236421724) internal successors, (935), 764 states have internal predecessors, (935), 157 states have call successors, (157), 39 states have call predecessors, (157), 39 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2022-10-15 21:10:10,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1249 transitions. [2022-10-15 21:10:10,655 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1249 transitions. Word has length 28 [2022-10-15 21:10:10,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:10:10,656 INFO L495 AbstractCegarLoop]: Abstraction has 950 states and 1249 transitions. [2022-10-15 21:10:10,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:10:10,656 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1249 transitions. [2022-10-15 21:10:10,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-15 21:10:10,658 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:10:10,658 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 21:10:10,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 21:10:10,659 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-15 21:10:10,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:10:10,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1439465001, now seen corresponding path program 1 times [2022-10-15 21:10:10,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:10:10,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982708848] [2022-10-15 21:10:10,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:10:10,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:10:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:10,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-15 21:10:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:10,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 21:10:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:10,913 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 21:10:10,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:10:10,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982708848] [2022-10-15 21:10:10,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982708848] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:10:10,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662886353] [2022-10-15 21:10:10,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:10:10,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:10:10,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:10:10,916 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 21:10:10,928 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 21:10:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:11,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1120 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:10:11,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:10:11,435 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 21:10:11,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:10:11,507 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 21:10:11,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662886353] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:10:11,508 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:10:11,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-15 21:10:11,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156635395] [2022-10-15 21:10:11,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:10:11,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:10:11,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:10:11,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:10:11,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:10:11,510 INFO L87 Difference]: Start difference. First operand 950 states and 1249 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:10:12,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:10:12,067 INFO L93 Difference]: Finished difference Result 1877 states and 2463 transitions. [2022-10-15 21:10:12,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:10:12,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2022-10-15 21:10:12,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:10:12,078 INFO L225 Difference]: With dead ends: 1877 [2022-10-15 21:10:12,079 INFO L226 Difference]: Without dead ends: 1018 [2022-10-15 21:10:12,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 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 21:10:12,088 INFO L413 NwaCegarLoop]: 1152 mSDtfsCounter, 80 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 4589 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:10:12,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 4589 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 21:10:12,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2022-10-15 21:10:12,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 1013. [2022-10-15 21:10:12,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 680 states have (on average 1.4779411764705883) internal successors, (1005), 818 states have internal predecessors, (1005), 166 states have call successors, (166), 39 states have call predecessors, (166), 39 states have return successors, (166), 166 states have call predecessors, (166), 166 states have call successors, (166) [2022-10-15 21:10:12,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1337 transitions. [2022-10-15 21:10:12,164 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1337 transitions. Word has length 32 [2022-10-15 21:10:12,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:10:12,164 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1337 transitions. [2022-10-15 21:10:12,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:10:12,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1337 transitions. [2022-10-15 21:10:12,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-15 21:10:12,165 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:10:12,166 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:10:12,208 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 21:10:12,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:10:12,382 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-15 21:10:12,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:10:12,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1892778297, now seen corresponding path program 1 times [2022-10-15 21:10:12,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:10:12,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917801557] [2022-10-15 21:10:12,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:10:12,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:10:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:14,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:10:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:14,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-15 21:10:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:14,969 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:10:14,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:10:14,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917801557] [2022-10-15 21:10:14,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917801557] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:10:14,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516645622] [2022-10-15 21:10:14,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:10:14,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:10:14,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:10:14,971 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 21:10:14,991 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 21:10:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:15,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 44 conjunts are in the unsatisfiable core [2022-10-15 21:10:15,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:10:15,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-10-15 21:10:15,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-10-15 21:10:15,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-10-15 21:10:15,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:10:15,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-15 21:10:15,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-15 21:10:16,028 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-15 21:10:16,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:10:16,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-10-15 21:10:16,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:10:16,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:10:16,209 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1132 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_pt_detect_~tape___0~0#1.base| v_ArrVal_1132) (select c_~drives~0.base |c_ULTIMATE.start_pt_detect_~unit~0#1|)) (select c_~drives~0.offset |c_ULTIMATE.start_pt_detect_~unit~0#1|)) 0)) is different from false [2022-10-15 21:10:16,239 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1132 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1132) (select c_~drives~0.base |c_ULTIMATE.start_pt_detect_~unit~0#1|)) (select c_~drives~0.offset |c_ULTIMATE.start_pt_detect_~unit~0#1|)) 0)) is different from false [2022-10-15 21:10:16,274 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1132 (Array Int Int))) (= (let ((.cse0 (+ |c_ULTIMATE.start_pt_detect_~unit~0#1| 1))) (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1132) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-15 21:10:16,309 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1128 (Array Int Int)) (v_ArrVal_1132 (Array Int Int))) (= (let ((.cse0 (+ |c_ULTIMATE.start_pt_detect_~unit~0#1| 1))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_pt_detect_~tape___0~0#1.base| v_ArrVal_1128) |c_~#pt~0.base| v_ArrVal_1132) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-15 21:10:16,343 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1132 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1132) (select c_~drives~0.base 1)) (select c_~drives~0.offset 1)) 0)) is different from false [2022-10-15 21:10:16,361 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-10-15 21:10:16,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516645622] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:10:16,362 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:10:16,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 19 [2022-10-15 21:10:16,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013443108] [2022-10-15 21:10:16,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:10:16,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-15 21:10:16,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:10:16,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-15 21:10:16,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=144, Unknown=5, NotChecked=140, Total=342 [2022-10-15 21:10:16,365 INFO L87 Difference]: Start difference. First operand 1013 states and 1337 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)