/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 [2022-10-16 12:54:20,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:54:20,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:54:20,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:54:20,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:54:20,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:54:20,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:54:20,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:54:20,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:54:20,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:54:20,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:54:20,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:54:20,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:54:20,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:54:20,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:54:20,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:54:20,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:54:20,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:54:20,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:54:20,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:54:20,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:54:20,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:54:20,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:54:20,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:54:20,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:54:20,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:54:20,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:54:20,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:54:20,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:54:20,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:54:20,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:54:20,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:54:20,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:54:20,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:54:20,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:54:20,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:54:20,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:54:20,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:54:20,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:54:20,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:54:20,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:54:20,421 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 12:54:20,455 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:54:20,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:54:20,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:54:20,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:54:20,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:54:20,457 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:54:20,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:54:20,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:54:20,459 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:54:20,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:54:20,460 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:54:20,461 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:54:20,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:54:20,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:54:20,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:54:20,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:54:20,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:54:20,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:54:20,463 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:54:20,463 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:54:20,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:54:20,464 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:54:20,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:54:20,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:54:20,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:54:20,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:54:20,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:54:20,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:54:20,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:54:20,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:54:20,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:54:20,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:54:20,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:54:20,467 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:54:20,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:54:20,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:54:20,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:54:20,902 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:54:20,903 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:54:20,905 INFO L432 ainManager$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 [2022-10-16 12:54:20,991 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de30609b0/c240e53146eb4821b084b1d3ec859da1/FLAGa136ff804 [2022-10-16 12:54:21,944 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:54:21,944 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 [2022-10-16 12:54:21,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de30609b0/c240e53146eb4821b084b1d3ec859da1/FLAGa136ff804 [2022-10-16 12:54:22,029 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de30609b0/c240e53146eb4821b084b1d3ec859da1 [2022-10-16 12:54:22,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:54:22,039 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:54:22,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:54:22,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:54:22,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:54:22,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:54:22" (1/1) ... [2022-10-16 12:54:22,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c1882b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:22, skipping insertion in model container [2022-10-16 12:54:22,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:54:22" (1/1) ... [2022-10-16 12:54:22,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:54:22,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:54:23,612 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] [2022-10-16 12:54:23,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:54:23,705 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:54:24,018 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] [2022-10-16 12:54:24,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:54:24,105 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:54:24,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:24 WrapperNode [2022-10-16 12:54:24,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:54:24,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:54:24,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:54:24,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:54:24,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:24" (1/1) ... [2022-10-16 12:54:24,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:24" (1/1) ... [2022-10-16 12:54:24,309 INFO L138 Inliner]: procedures = 103, calls = 743, calls flagged for inlining = 32, calls inlined = 30, statements flattened = 1665 [2022-10-16 12:54:24,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:54:24,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:54:24,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:54:24,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:54:24,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:24" (1/1) ... [2022-10-16 12:54:24,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:24" (1/1) ... [2022-10-16 12:54:24,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:24" (1/1) ... [2022-10-16 12:54:24,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:24" (1/1) ... [2022-10-16 12:54:24,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:24" (1/1) ... [2022-10-16 12:54:24,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:24" (1/1) ... [2022-10-16 12:54:24,478 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:24" (1/1) ... [2022-10-16 12:54:24,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:24" (1/1) ... [2022-10-16 12:54:24,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:54:24,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:54:24,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:54:24,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:54:24,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:24" (1/1) ... [2022-10-16 12:54:24,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:54:24,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:54:24,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 12:54:24,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 12:54:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2022-10-16 12:54:24,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2022-10-16 12:54:24,667 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-10-16 12:54:24,668 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-10-16 12:54:24,668 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2022-10-16 12:54:24,668 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2022-10-16 12:54:24,668 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2022-10-16 12:54:24,668 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2022-10-16 12:54:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2022-10-16 12:54:24,669 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2022-10-16 12:54:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:54:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2022-10-16 12:54:24,669 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2022-10-16 12:54:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-10-16 12:54:24,670 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-10-16 12:54:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2022-10-16 12:54:24,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2022-10-16 12:54:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 12:54:24,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 12:54:24,671 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2022-10-16 12:54:24,671 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2022-10-16 12:54:24,671 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2022-10-16 12:54:24,671 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2022-10-16 12:54:24,671 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2022-10-16 12:54:24,672 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2022-10-16 12:54:24,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:54:24,672 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 12:54:24,672 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 12:54:24,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-10-16 12:54:24,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-10-16 12:54:24,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 12:54:24,673 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2022-10-16 12:54:24,673 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2022-10-16 12:54:24,673 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2022-10-16 12:54:24,673 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2022-10-16 12:54:24,674 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2022-10-16 12:54:24,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2022-10-16 12:54:24,674 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-16 12:54:24,674 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-16 12:54:24,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:54:24,674 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-16 12:54:24,675 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-16 12:54:24,675 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-16 12:54:24,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-16 12:54:24,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 12:54:24,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:54:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2022-10-16 12:54:24,676 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2022-10-16 12:54:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2022-10-16 12:54:24,676 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2022-10-16 12:54:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 12:54:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2022-10-16 12:54:24,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2022-10-16 12:54:24,678 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2022-10-16 12:54:24,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2022-10-16 12:54:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-10-16 12:54:24,679 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-10-16 12:54:24,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-10-16 12:54:24,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-10-16 12:54:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2022-10-16 12:54:24,680 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2022-10-16 12:54:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:54:24,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 12:54:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2022-10-16 12:54:24,681 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2022-10-16 12:54:24,681 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2022-10-16 12:54:24,682 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2022-10-16 12:54:24,682 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-16 12:54:24,683 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-16 12:54:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2022-10-16 12:54:24,683 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2022-10-16 12:54:24,683 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2022-10-16 12:54:24,684 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2022-10-16 12:54:24,684 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-10-16 12:54:24,685 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-10-16 12:54:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-16 12:54:24,686 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-16 12:54:24,686 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2022-10-16 12:54:24,686 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2022-10-16 12:54:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:54:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2022-10-16 12:54:24,687 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2022-10-16 12:54:24,687 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2022-10-16 12:54:24,687 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2022-10-16 12:54:24,688 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-16 12:54:24,688 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-16 12:54:24,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:54:24,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:54:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2022-10-16 12:54:24,689 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2022-10-16 12:54:24,689 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-16 12:54:24,690 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-16 12:54:25,516 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:54:25,521 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:54:30,863 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:54:30,879 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:54:30,880 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:54:33,082 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; [2022-10-16 12:54:33,082 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##231: assume false; [2022-10-16 12:54:33,083 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##239: assume false; [2022-10-16 12:54:33,083 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##240: assume !false; [2022-10-16 12:54:33,083 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##52: assume !false; [2022-10-16 12:54:33,083 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##51: assume false; [2022-10-16 12:54:33,224 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:54:33,241 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:54:33,242 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 12:54:33,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:54:33 BoogieIcfgContainer [2022-10-16 12:54:33,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:54:33,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:54:33,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:54:33,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:54:33,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:54:22" (1/3) ... [2022-10-16 12:54:33,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca2a761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:54:33, skipping insertion in model container [2022-10-16 12:54:33,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:54:24" (2/3) ... [2022-10-16 12:54:33,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca2a761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:54:33, skipping insertion in model container [2022-10-16 12:54:33,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:54:33" (3/3) ... [2022-10-16 12:54:33,257 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-paride-pt.ko.cil.out.i [2022-10-16 12:54:33,280 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:54:33,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 130 error locations. [2022-10-16 12:54:33,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:54:33,385 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;@66b29c2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:54:33,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 130 error locations. [2022-10-16 12:54:33,396 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) [2022-10-16 12:54:33,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 12:54:33,407 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:33,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:54:33,409 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-16 12:54:33,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:33,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1439479619, now seen corresponding path program 1 times [2022-10-16 12:54:33,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:33,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853677527] [2022-10-16 12:54:33,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:33,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:34,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:54:34,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:34,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853677527] [2022-10-16 12:54:34,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853677527] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:54:34,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:54:34,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:54:34,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891947795] [2022-10-16 12:54:34,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:54:34,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:54:34,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:54:34,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:54:34,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:54:34,340 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) [2022-10-16 12:54:34,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:54:34,756 INFO L93 Difference]: Finished difference Result 1822 states and 2468 transitions. [2022-10-16 12:54:34,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:54:34,760 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 [2022-10-16 12:54:34,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:54:34,798 INFO L225 Difference]: With dead ends: 1822 [2022-10-16 12:54:34,799 INFO L226 Difference]: Without dead ends: 908 [2022-10-16 12:54:34,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:54:34,824 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, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:54:34,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2317 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:54:34,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2022-10-16 12:54:34,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 904. [2022-10-16 12:54:34,999 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) [2022-10-16 12:54:35,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1183 transitions. [2022-10-16 12:54:35,013 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1183 transitions. Word has length 9 [2022-10-16 12:54:35,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:54:35,018 INFO L495 AbstractCegarLoop]: Abstraction has 904 states and 1183 transitions. [2022-10-16 12:54:35,019 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) [2022-10-16 12:54:35,019 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1183 transitions. [2022-10-16 12:54:35,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 12:54:35,020 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:35,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:54:35,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:54:35,021 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-16 12:54:35,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:35,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1439479583, now seen corresponding path program 1 times [2022-10-16 12:54:35,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:35,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778373135] [2022-10-16 12:54:35,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:35,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:35,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:54:35,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:35,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778373135] [2022-10-16 12:54:35,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778373135] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:54:35,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:54:35,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:54:35,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793044642] [2022-10-16 12:54:35,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:54:35,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:54:35,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:54:35,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:54:35,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:54:35,318 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) [2022-10-16 12:54:35,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:54:35,450 INFO L93 Difference]: Finished difference Result 2048 states and 2709 transitions. [2022-10-16 12:54:35,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:54:35,450 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 [2022-10-16 12:54:35,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:54:35,465 INFO L225 Difference]: With dead ends: 2048 [2022-10-16 12:54:35,466 INFO L226 Difference]: Without dead ends: 1281 [2022-10-16 12:54:35,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:54:35,473 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 [2022-10-16 12:54:35,474 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] [2022-10-16 12:54:35,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-10-16 12:54:35,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 915. [2022-10-16 12:54:35,545 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) [2022-10-16 12:54:35,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1196 transitions. [2022-10-16 12:54:35,556 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1196 transitions. Word has length 9 [2022-10-16 12:54:35,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:54:35,556 INFO L495 AbstractCegarLoop]: Abstraction has 915 states and 1196 transitions. [2022-10-16 12:54:35,557 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) [2022-10-16 12:54:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1196 transitions. [2022-10-16 12:54:35,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 12:54:35,559 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:35,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:54:35,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:54:35,562 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-16 12:54:35,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:35,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1755360726, now seen corresponding path program 1 times [2022-10-16 12:54:35,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:35,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117108225] [2022-10-16 12:54:35,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:35,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:35,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:54:35,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:35,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117108225] [2022-10-16 12:54:35,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117108225] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:54:35,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:54:35,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:54:35,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488197856] [2022-10-16 12:54:35,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:54:35,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:54:35,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:54:35,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:54:35,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:54:35,711 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) [2022-10-16 12:54:35,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:54:35,780 INFO L93 Difference]: Finished difference Result 1638 states and 2138 transitions. [2022-10-16 12:54:35,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:54:35,781 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 [2022-10-16 12:54:35,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:54:35,789 INFO L225 Difference]: With dead ends: 1638 [2022-10-16 12:54:35,790 INFO L226 Difference]: Without dead ends: 915 [2022-10-16 12:54:35,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:54:35,800 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 [2022-10-16 12:54:35,806 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] [2022-10-16 12:54:35,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-10-16 12:54:35,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 915. [2022-10-16 12:54:35,858 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) [2022-10-16 12:54:35,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1195 transitions. [2022-10-16 12:54:35,867 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1195 transitions. Word has length 15 [2022-10-16 12:54:35,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:54:35,867 INFO L495 AbstractCegarLoop]: Abstraction has 915 states and 1195 transitions. [2022-10-16 12:54:35,871 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) [2022-10-16 12:54:35,877 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1195 transitions. [2022-10-16 12:54:35,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 12:54:35,878 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:35,879 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:54:35,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:54:35,879 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-16 12:54:35,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:35,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1170321407, now seen corresponding path program 1 times [2022-10-16 12:54:35,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:35,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573899401] [2022-10-16 12:54:35,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:35,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:36,202 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 12:54:36,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:36,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573899401] [2022-10-16 12:54:36,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573899401] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:54:36,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:54:36,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:54:36,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806410186] [2022-10-16 12:54:36,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:54:36,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:54:36,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:54:36,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:54:36,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:54:36,208 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) [2022-10-16 12:54:36,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:54:36,361 INFO L93 Difference]: Finished difference Result 915 states and 1195 transitions. [2022-10-16 12:54:36,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:54:36,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 12:54:36,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:54:36,369 INFO L225 Difference]: With dead ends: 915 [2022-10-16 12:54:36,369 INFO L226 Difference]: Without dead ends: 914 [2022-10-16 12:54:36,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:54:36,374 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 [2022-10-16 12:54:36,375 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] [2022-10-16 12:54:36,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-10-16 12:54:36,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 914. [2022-10-16 12:54:36,420 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) [2022-10-16 12:54:36,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1193 transitions. [2022-10-16 12:54:36,428 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1193 transitions. Word has length 15 [2022-10-16 12:54:36,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:54:36,429 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1193 transitions. [2022-10-16 12:54:36,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:54:36,429 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1193 transitions. [2022-10-16 12:54:36,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 12:54:36,430 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:36,431 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 12:54:36,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:54:36,431 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-16 12:54:36,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:36,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1920224385, now seen corresponding path program 1 times [2022-10-16 12:54:36,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:36,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277463782] [2022-10-16 12:54:36,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:36,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:36,664 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:54:36,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:36,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277463782] [2022-10-16 12:54:36,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277463782] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:54:36,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439763720] [2022-10-16 12:54:36,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:36,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:54:36,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:54:36,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:54:36,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 12:54:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:37,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:54:37,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:54:37,141 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:54:37,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:54:37,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439763720] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:54:37,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:54:37,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 12:54:37,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143225732] [2022-10-16 12:54:37,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:54:37,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:54:37,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:54:37,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:54:37,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:54:37,144 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) [2022-10-16 12:54:37,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:54:37,554 INFO L93 Difference]: Finished difference Result 916 states and 1193 transitions. [2022-10-16 12:54:37,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:54:37,555 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 [2022-10-16 12:54:37,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:54:37,562 INFO L225 Difference]: With dead ends: 916 [2022-10-16 12:54:37,563 INFO L226 Difference]: Without dead ends: 915 [2022-10-16 12:54:37,564 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 [2022-10-16 12:54:37,565 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, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:54:37,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [898 Valid, 1844 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 12:54:37,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-10-16 12:54:37,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 894. [2022-10-16 12:54:37,614 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) [2022-10-16 12:54:37,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1164 transitions. [2022-10-16 12:54:37,623 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1164 transitions. Word has length 16 [2022-10-16 12:54:37,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:54:37,628 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1164 transitions. [2022-10-16 12:54:37,629 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) [2022-10-16 12:54:37,629 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1164 transitions. [2022-10-16 12:54:37,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 12:54:37,638 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:37,638 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:54:37,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 12:54:37,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:54:37,852 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-16 12:54:37,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:37,853 INFO L85 PathProgramCache]: Analyzing trace with hash 398087822, now seen corresponding path program 1 times [2022-10-16 12:54:37,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:37,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152700231] [2022-10-16 12:54:37,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:37,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:38,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 12:54:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:38,322 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:54:38,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:38,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152700231] [2022-10-16 12:54:38,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152700231] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:54:38,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569450854] [2022-10-16 12:54:38,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:38,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:54:38,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:54:38,325 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:54:38,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 12:54:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:38,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:54:38,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:54:38,826 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:54:38,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:54:38,944 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:54:38,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569450854] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:54:38,945 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:54:38,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-16 12:54:38,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034735708] [2022-10-16 12:54:38,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:54:38,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:54:38,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:54:38,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:54:38,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:54:38,947 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) [2022-10-16 12:54:40,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:54:40,398 INFO L93 Difference]: Finished difference Result 2413 states and 3303 transitions. [2022-10-16 12:54:40,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:54:40,399 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 [2022-10-16 12:54:40,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:54:40,421 INFO L225 Difference]: With dead ends: 2413 [2022-10-16 12:54:40,421 INFO L226 Difference]: Without dead ends: 2412 [2022-10-16 12:54:40,424 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 [2022-10-16 12:54:40,425 INFO L413 NwaCegarLoop]: 1911 mSDtfsCounter, 2613 mSDsluCounter, 3381 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:54:40,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2883 Valid, 5292 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-16 12:54:40,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2022-10-16 12:54:40,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 947. [2022-10-16 12:54:40,522 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) [2022-10-16 12:54:40,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1246 transitions. [2022-10-16 12:54:40,531 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1246 transitions. Word has length 23 [2022-10-16 12:54:40,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:54:40,532 INFO L495 AbstractCegarLoop]: Abstraction has 947 states and 1246 transitions. [2022-10-16 12:54:40,532 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) [2022-10-16 12:54:40,532 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1246 transitions. [2022-10-16 12:54:40,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 12:54:40,533 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:40,534 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] [2022-10-16 12:54:40,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 12:54:40,748 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 [2022-10-16 12:54:40,748 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-16 12:54:40,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:40,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1457714941, now seen corresponding path program 1 times [2022-10-16 12:54:40,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:40,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032187315] [2022-10-16 12:54:40,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:40,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:42,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 12:54:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:42,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:54:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:42,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:54:42,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:42,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032187315] [2022-10-16 12:54:42,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032187315] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:54:42,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:54:42,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:54:42,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657105441] [2022-10-16 12:54:42,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:54:42,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:54:42,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:54:42,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:54:42,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:54:42,020 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) [2022-10-16 12:54:49,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:54:51,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:54:53,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:54:56,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:54:56,565 INFO L93 Difference]: Finished difference Result 1887 states and 2484 transitions. [2022-10-16 12:54:56,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:54:56,566 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 [2022-10-16 12:54:56,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:54:56,574 INFO L225 Difference]: With dead ends: 1887 [2022-10-16 12:54:56,574 INFO L226 Difference]: Without dead ends: 952 [2022-10-16 12:54:56,578 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 [2022-10-16 12:54:56,579 INFO L413 NwaCegarLoop]: 1146 mSDtfsCounter, 4 mSDsluCounter, 4329 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s 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, 14.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:54:56,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5475 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 277 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2022-10-16 12:54:56,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-10-16 12:54:56,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 950. [2022-10-16 12:54:56,638 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) [2022-10-16 12:54:56,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1249 transitions. [2022-10-16 12:54:56,646 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1249 transitions. Word has length 28 [2022-10-16 12:54:56,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:54:56,647 INFO L495 AbstractCegarLoop]: Abstraction has 950 states and 1249 transitions. [2022-10-16 12:54:56,647 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) [2022-10-16 12:54:56,647 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1249 transitions. [2022-10-16 12:54:56,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 12:54:56,648 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:56,648 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] [2022-10-16 12:54:56,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 12:54:56,649 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-16 12:54:56,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:56,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1439465001, now seen corresponding path program 1 times [2022-10-16 12:54:56,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:56,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452550351] [2022-10-16 12:54:56,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:56,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:56,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 12:54:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:56,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 12:54:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:56,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:54:56,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:54:56,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452550351] [2022-10-16 12:54:56,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452550351] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:54:56,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586666696] [2022-10-16 12:54:56,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:56,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:54:56,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:54:56,884 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:54:56,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 12:54:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:54:57,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 1120 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:54:57,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:54:57,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:54:57,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:54:57,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:54:57,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586666696] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:54:57,369 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:54:57,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 12:54:57,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173466372] [2022-10-16 12:54:57,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:54:57,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:54:57,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:54:57,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:54:57,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:54:57,372 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) [2022-10-16 12:54:57,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:54:57,790 INFO L93 Difference]: Finished difference Result 1877 states and 2463 transitions. [2022-10-16 12:54:57,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:54:57,791 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 [2022-10-16 12:54:57,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:54:57,798 INFO L225 Difference]: With dead ends: 1877 [2022-10-16 12:54:57,798 INFO L226 Difference]: Without dead ends: 1018 [2022-10-16 12:54:57,803 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 [2022-10-16 12:54:57,804 INFO L413 NwaCegarLoop]: 1152 mSDtfsCounter, 80 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:54:57,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 4589 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 12:54:57,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2022-10-16 12:54:57,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 1013. [2022-10-16 12:54:57,868 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) [2022-10-16 12:54:57,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1337 transitions. [2022-10-16 12:54:57,875 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1337 transitions. Word has length 32 [2022-10-16 12:54:57,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:54:57,876 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1337 transitions. [2022-10-16 12:54:57,876 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) [2022-10-16 12:54:57,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1337 transitions. [2022-10-16 12:54:57,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 12:54:57,877 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:54:57,877 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] [2022-10-16 12:54:57,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 12:54:58,089 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 [2022-10-16 12:54:58,090 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-16 12:54:58,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:54:58,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1892778297, now seen corresponding path program 1 times [2022-10-16 12:54:58,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:54:58,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131753649] [2022-10-16 12:54:58,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:54:58,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:54:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:00,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 12:55:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:00,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:55:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:00,524 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:55:00,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:55:00,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131753649] [2022-10-16 12:55:00,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131753649] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:55:00,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136937152] [2022-10-16 12:55:00,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:55:00,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:55:00,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:55:00,529 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:55:00,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 12:55:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:00,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 44 conjunts are in the unsatisfiable core [2022-10-16 12:55:00,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:55:01,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-10-16 12:55:01,064 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-10-16 12:55:01,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-10-16 12:55:01,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:55:01,274 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 12:55:01,365 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 12:55:01,525 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 12:55:01,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:55:01,610 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-10-16 12:55:01,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:55:01,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:55:01,676 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 [2022-10-16 12:55:01,693 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 [2022-10-16 12:55:01,713 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 [2022-10-16 12:55:01,742 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 [2022-10-16 12:55:01,770 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 [2022-10-16 12:55:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-10-16 12:55:01,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136937152] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:55:01,786 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:55:01,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 19 [2022-10-16 12:55:01,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418532372] [2022-10-16 12:55:01,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:55:01,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 12:55:01,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:55:01,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 12:55:01,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=144, Unknown=5, NotChecked=140, Total=342 [2022-10-16 12:55:01,789 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) [2022-10-16 12:55:13,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:15,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:17,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:19,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:21,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:25,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:25,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:55:25,810 INFO L93 Difference]: Finished difference Result 1939 states and 2553 transitions. [2022-10-16 12:55:25,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 12:55:25,812 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 34 [2022-10-16 12:55:25,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:55:25,819 INFO L225 Difference]: With dead ends: 1939 [2022-10-16 12:55:25,820 INFO L226 Difference]: Without dead ends: 980 [2022-10-16 12:55:25,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 63 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=164, Unknown=5, NotChecked=150, Total=380 [2022-10-16 12:55:25,826 INFO L413 NwaCegarLoop]: 1147 mSDtfsCounter, 6 mSDsluCounter, 12836 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13983 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 479 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2022-10-16 12:55:25,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 13983 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 539 Invalid, 4 Unknown, 479 Unchecked, 23.6s Time] [2022-10-16 12:55:25,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2022-10-16 12:55:25,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 980. [2022-10-16 12:55:25,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 653 states have (on average 1.4808575803981623) internal successors, (967), 791 states have internal predecessors, (967), 160 states have call successors, (160), 39 states have call predecessors, (160), 39 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2022-10-16 12:55:25,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1287 transitions. [2022-10-16 12:55:25,899 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1287 transitions. Word has length 34 [2022-10-16 12:55:25,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:55:25,900 INFO L495 AbstractCegarLoop]: Abstraction has 980 states and 1287 transitions. [2022-10-16 12:55:25,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-10-16 12:55:25,900 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1287 transitions. [2022-10-16 12:55:25,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 12:55:25,901 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:55:25,902 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:55:25,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 12:55:26,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:55:26,115 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-16 12:55:26,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:55:26,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1646685813, now seen corresponding path program 2 times [2022-10-16 12:55:26,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:55:26,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527583869] [2022-10-16 12:55:26,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:55:26,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:55:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:29,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 12:55:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:29,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 12:55:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:55:29,098 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:55:29,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:55:29,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527583869] [2022-10-16 12:55:29,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527583869] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:55:29,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213055021] [2022-10-16 12:55:29,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 12:55:29,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:55:29,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:55:29,105 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:55:29,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 12:55:30,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 12:55:30,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 12:55:30,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 1312 conjuncts, 56 conjunts are in the unsatisfiable core [2022-10-16 12:55:30,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:55:30,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-10-16 12:55:30,776 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-10-16 12:55:30,794 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2022-10-16 12:55:30,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:55:30,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 12:55:31,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 12:55:31,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:55:31,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 12:55:31,345 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 12:55:31,509 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 12:55:31,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:55:31,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-10-16 12:55:31,625 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:55:31,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:55:31,646 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1484 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_pt_detect_~tape___0~0#1.base| v_ArrVal_1484) (select c_~drives~0.base |c_ULTIMATE.start_pt_detect_~unit~0#1|)) (select c_~drives~0.offset |c_ULTIMATE.start_pt_detect_~unit~0#1|)) 0)) is different from false [2022-10-16 12:55:31,659 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1484 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1484) (select c_~drives~0.base |c_ULTIMATE.start_pt_detect_~unit~0#1|)) (select c_~drives~0.offset |c_ULTIMATE.start_pt_detect_~unit~0#1|)) 0)) is different from false [2022-10-16 12:55:31,679 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1484 (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_1484) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-16 12:55:31,703 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1484 (Array Int Int)) (v_ArrVal_1480 (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_1480) |c_~#pt~0.base| v_ArrVal_1484) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-16 12:55:31,732 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1484 (Array Int Int))) (= 0 (let ((.cse0 (+ 2 |c_ULTIMATE.start_pt_detect_~unit~0#1|))) (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1484) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))))) is different from false [2022-10-16 12:55:31,759 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1475 (Array Int Int)) (v_ArrVal_1484 (Array Int Int))) (= (let ((.cse0 (+ 2 |c_ULTIMATE.start_pt_detect_~unit~0#1|))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_pt_detect_~tape___0~0#1.base| v_ArrVal_1475) |c_~#pt~0.base| v_ArrVal_1484) (select c_~drives~0.base .cse0)) (select c_~drives~0.offset .cse0))) 0)) is different from false [2022-10-16 12:55:31,786 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1484 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_~#pt~0.base| v_ArrVal_1484) (select c_~drives~0.base 2)) (select c_~drives~0.offset 2)) 0)) is different from false [2022-10-16 12:55:31,805 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 14 not checked. [2022-10-16 12:55:31,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213055021] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:55:31,806 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:55:31,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 26 [2022-10-16 12:55:31,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581714567] [2022-10-16 12:55:31,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:55:31,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 12:55:31,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:55:31,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 12:55:31,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=286, Unknown=7, NotChecked=280, Total=650 [2022-10-16 12:55:31,808 INFO L87 Difference]: Start difference. First operand 980 states and 1287 transitions. Second operand has 26 states, 26 states have (on average 2.923076923076923) internal successors, (76), 26 states have internal predecessors, (76), 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) [2022-10-16 12:55:45,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:47,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:49,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:51,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:53,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:55,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:57,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:55:59,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:01,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:02,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:05,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:07,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:08,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:08,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:56:08,828 INFO L93 Difference]: Finished difference Result 1903 states and 2500 transitions. [2022-10-16 12:56:08,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:56:08,829 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.923076923076923) internal successors, (76), 26 states have internal predecessors, (76), 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 40 [2022-10-16 12:56:08,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:56:08,836 INFO L225 Difference]: With dead ends: 1903 [2022-10-16 12:56:08,837 INFO L226 Difference]: Without dead ends: 965 [2022-10-16 12:56:08,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 71 SyntacticMatches, 8 SemanticMatches, 25 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=85, Invalid=316, Unknown=7, NotChecked=294, Total=702 [2022-10-16 12:56:08,843 INFO L413 NwaCegarLoop]: 1148 mSDtfsCounter, 13 mSDsluCounter, 18224 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 17 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 19372 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 686 IncrementalHoareTripleChecker+Unchecked, 36.5s IncrementalHoareTripleChecker+Time [2022-10-16 12:56:08,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 19372 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 779 Invalid, 9 Unknown, 686 Unchecked, 36.5s Time] [2022-10-16 12:56:08,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2022-10-16 12:56:08,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2022-10-16 12:56:08,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 641 states have (on average 1.4820592823712948) internal successors, (950), 779 states have internal predecessors, (950), 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) [2022-10-16 12:56:08,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1264 transitions. [2022-10-16 12:56:08,902 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1264 transitions. Word has length 40 [2022-10-16 12:56:08,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:56:08,903 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1264 transitions. [2022-10-16 12:56:08,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.923076923076923) internal successors, (76), 26 states have internal predecessors, (76), 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) [2022-10-16 12:56:08,903 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1264 transitions. [2022-10-16 12:56:08,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 12:56:08,904 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:56:08,904 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:56:08,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 12:56:09,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 12:56:09,119 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-16 12:56:09,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:56:09,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1483432353, now seen corresponding path program 1 times [2022-10-16 12:56:09,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:56:09,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941085624] [2022-10-16 12:56:09,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:09,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:56:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:11,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 12:56:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:11,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 12:56:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:11,804 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:56:11,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:56:11,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941085624] [2022-10-16 12:56:11,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941085624] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:56:11,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346836373] [2022-10-16 12:56:11,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:11,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:56:11,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:56:11,806 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:56:11,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 12:56:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:12,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-16 12:56:12,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:56:12,343 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-16 12:56:12,344 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-10-16 12:56:12,773 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 12:56:12,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:56:12,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 12:56:13,263 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-10-16 12:56:13,310 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 12:56:13,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:56:13,725 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 12:56:13,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2022-10-16 12:56:13,732 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-10-16 12:56:13,742 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-16 12:56:14,210 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 12:56:14,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346836373] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:56:14,211 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:56:14,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 10] total 34 [2022-10-16 12:56:14,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170514974] [2022-10-16 12:56:14,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:56:14,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-16 12:56:14,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:56:14,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-16 12:56:14,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1088, Unknown=2, NotChecked=0, Total=1190 [2022-10-16 12:56:14,214 INFO L87 Difference]: Start difference. First operand 965 states and 1264 transitions. Second operand has 35 states, 31 states have (on average 3.0) internal successors, (93), 26 states have internal predecessors, (93), 9 states have call successors, (15), 12 states have call predecessors, (15), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 12:56:34,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:36,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:38,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:40,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:42,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:44,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:46,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:52,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:53,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:55,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:57,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:57:00,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:57:05,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:57:05,146 INFO L93 Difference]: Finished difference Result 1869 states and 2463 transitions. [2022-10-16 12:57:05,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-16 12:57:05,147 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 31 states have (on average 3.0) internal successors, (93), 26 states have internal predecessors, (93), 9 states have call successors, (15), 12 states have call predecessors, (15), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 48 [2022-10-16 12:57:05,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:57:05,168 INFO L225 Difference]: With dead ends: 1869 [2022-10-16 12:57:05,168 INFO L226 Difference]: Without dead ends: 1867 [2022-10-16 12:57:05,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=434, Invalid=3724, Unknown=2, NotChecked=0, Total=4160 [2022-10-16 12:57:05,172 INFO L413 NwaCegarLoop]: 1285 mSDtfsCounter, 3612 mSDsluCounter, 25955 mSDsCounter, 0 mSdLazyCounter, 5137 mSolverCounterSat, 535 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3621 SdHoareTripleChecker+Valid, 27240 SdHoareTripleChecker+Invalid, 6807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 5137 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 1125 IncrementalHoareTripleChecker+Unchecked, 48.6s IncrementalHoareTripleChecker+Time [2022-10-16 12:57:05,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3621 Valid, 27240 Invalid, 6807 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [535 Valid, 5137 Invalid, 10 Unknown, 1125 Unchecked, 48.6s Time] [2022-10-16 12:57:05,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1867 states. [2022-10-16 12:57:05,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1867 to 1333. [2022-10-16 12:57:05,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 919 states have (on average 1.4646354733405875) internal successors, (1346), 1066 states have internal predecessors, (1346), 219 states have call successors, (219), 67 states have call predecessors, (219), 67 states have return successors, (225), 213 states have call predecessors, (225), 219 states have call successors, (225) [2022-10-16 12:57:05,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1790 transitions. [2022-10-16 12:57:05,310 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1790 transitions. Word has length 48 [2022-10-16 12:57:05,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:57:05,312 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 1790 transitions. [2022-10-16 12:57:05,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 31 states have (on average 3.0) internal successors, (93), 26 states have internal predecessors, (93), 9 states have call successors, (15), 12 states have call predecessors, (15), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 12:57:05,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1790 transitions. [2022-10-16 12:57:05,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-16 12:57:05,316 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:57:05,316 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:57:05,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 12:57:05,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:05,530 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 127 more)] === [2022-10-16 12:57:05,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:57:05,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1890877775, now seen corresponding path program 3 times [2022-10-16 12:57:05,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:57:05,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337114609] [2022-10-16 12:57:05,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:05,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:57:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:09,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 12:57:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:09,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:57:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:09,065 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:57:09,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:57:09,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337114609] [2022-10-16 12:57:09,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337114609] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:57:09,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067345261] [2022-10-16 12:57:09,066 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 12:57:09,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:09,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:57:09,068 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:57:09,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process