/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 07:27:05,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 07:27:05,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 07:27:05,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-16 07:27:05,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-16 07:27:05,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-16 07:27:05,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-16 07:27:05,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-16 07:27:05,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-16 07:27:05,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-16 07:27:05,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-16 07:27:05,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-16 07:27:05,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 07:27:05,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 07:27:05,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 07:27:05,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 07:27:05,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 07:27:05,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 07:27:05,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 07:27:05,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 07:27:05,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 07:27:05,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 07:27:05,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 07:27:05,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 07:27:05,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-16 07:27:05,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-16 07:27:05,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-16 07:27:05,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-16 07:27:05,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-16 07:27:05,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-16 07:27:05,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-16 07:27:05,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-16 07:27:05,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-16 07:27:05,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 07:27:05,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 07:27:05,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 07:27:05,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-04-16 07:27:05,594 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 07:27:05,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 07:27:05,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 07:27:05,599 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 07:27:05,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 07:27:05,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 07:27:05,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 07:27:05,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 07:27:05,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 07:27:05,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 07:27:05,601 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 07:27:05,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 07:27:05,601 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 07:27:05,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 07:27:05,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 07:27:05,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 07:27:05,602 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 07:27:05,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 07:27:05,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 07:27:05,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 07:27:05,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-04-16 07:27:05,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-16 07:27:05,603 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-04-16 07:27:05,604 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 07:27:06,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 07:27:06,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 07:27:06,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 07:27:06,112 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 07:27:06,116 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 07:27:06,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_3.c [2021-04-16 07:27:06,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9b57511a/351e6c9c414b4dc1871277677089bafc/FLAGc01c676a2 [2021-04-16 07:27:07,136 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 07:27:07,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_3.c [2021-04-16 07:27:07,161 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9b57511a/351e6c9c414b4dc1871277677089bafc/FLAGc01c676a2 [2021-04-16 07:27:07,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9b57511a/351e6c9c414b4dc1871277677089bafc [2021-04-16 07:27:07,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 07:27:07,441 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-16 07:27:07,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 07:27:07,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 07:27:07,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 07:27:07,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:27:07" (1/1) ... [2021-04-16 07:27:07,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b73bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:27:07, skipping insertion in model container [2021-04-16 07:27:07,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:27:07" (1/1) ... [2021-04-16 07:27:07,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 07:27:07,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 07:27:07,937 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_3.c[11322,11335] [2021-04-16 07:27:07,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:27:07,967 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 07:27:08,162 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_3.c[11322,11335] [2021-04-16 07:27:08,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:27:08,200 INFO L208 MainTranslator]: Completed translation [2021-04-16 07:27:08,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:27:08 WrapperNode [2021-04-16 07:27:08,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 07:27:08,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 07:27:08,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 07:27:08,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 07:27:08,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:27:08" (1/1) ... [2021-04-16 07:27:08,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:27:08" (1/1) ... [2021-04-16 07:27:08,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:27:08" (1/1) ... [2021-04-16 07:27:08,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:27:08" (1/1) ... [2021-04-16 07:27:08,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:27:08" (1/1) ... [2021-04-16 07:27:08,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:27:08" (1/1) ... [2021-04-16 07:27:08,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:27:08" (1/1) ... [2021-04-16 07:27:08,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 07:27:08,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 07:27:08,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 07:27:08,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 07:27:08,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:27:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 07:27:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 07:27:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 07:27:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 07:27:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-16 07:27:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2021-04-16 07:27:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2021-04-16 07:27:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2021-04-16 07:27:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2021-04-16 07:27:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2021-04-16 07:27:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2021-04-16 07:27:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2021-04-16 07:27:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2021-04-16 07:27:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 07:27:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 07:27:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 07:27:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 07:27:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 07:27:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 07:27:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-16 07:27:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2021-04-16 07:27:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-04-16 07:27:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-04-16 07:27:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2021-04-16 07:27:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2021-04-16 07:27:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2021-04-16 07:27:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2021-04-16 07:27:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-04-16 07:27:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2021-04-16 07:27:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2021-04-16 07:27:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-04-16 07:27:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 07:27:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 07:27:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-04-16 07:27:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 07:27:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 07:27:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 07:27:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 07:27:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-04-16 07:27:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-04-16 07:27:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 07:27:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-04-16 07:27:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 07:27:09,947 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 07:27:09,948 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-04-16 07:27:09,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 07:27:09 BoogieIcfgContainer [2021-04-16 07:27:09,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 07:27:09,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 07:27:09,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 07:27:09,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 07:27:09,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 07:27:07" (1/3) ... [2021-04-16 07:27:09,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7875a335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 07:27:09, skipping insertion in model container [2021-04-16 07:27:09,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:27:08" (2/3) ... [2021-04-16 07:27:09,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7875a335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 07:27:09, skipping insertion in model container [2021-04-16 07:27:09,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 07:27:09" (3/3) ... [2021-04-16 07:27:09,975 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_3.c [2021-04-16 07:27:10,004 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-04-16 07:27:10,016 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 07:27:10,045 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 07:27:10,103 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 07:27:10,103 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-16 07:27:10,103 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-04-16 07:27:10,103 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 07:27:10,103 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 07:27:10,104 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 07:27:10,104 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 07:27:10,104 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 07:27:10,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 99 states have (on average 1.5353535353535352) internal successors, (152), 101 states have internal predecessors, (152), 16 states have call successors, (16), 11 states have call predecessors, (16), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-04-16 07:27:10,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-04-16 07:27:10,155 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:27:10,157 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:27:10,157 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:27:10,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:27:10,182 INFO L82 PathProgramCache]: Analyzing trace with hash -540283313, now seen corresponding path program 1 times [2021-04-16 07:27:10,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:27:10,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490584529] [2021-04-16 07:27:10,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:27:10,276 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 07:27:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:27:10,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:27:10,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:27:10,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:27:10,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:27:10,905 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-04-16 07:27:10,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:27:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:27:11,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:27:11,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:27:11,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-04-16 07:27:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:27:11,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:27:11,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:27:11,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-04-16 07:27:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:27:11,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:27:11,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:27:11,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:27:11,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:27:11,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:27:11,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490584529] [2021-04-16 07:27:11,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:27:11,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-16 07:27:11,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862623688] [2021-04-16 07:27:11,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-16 07:27:11,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:27:11,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-16 07:27:11,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-16 07:27:11,143 INFO L87 Difference]: Start difference. First operand has 128 states, 99 states have (on average 1.5353535353535352) internal successors, (152), 101 states have internal predecessors, (152), 16 states have call successors, (16), 11 states have call predecessors, (16), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-04-16 07:27:11,376 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-04-16 07:27:12,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:27:12,343 INFO L93 Difference]: Finished difference Result 243 states and 363 transitions. [2021-04-16 07:27:12,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-16 07:27:12,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-04-16 07:27:12,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:27:12,376 INFO L225 Difference]: With dead ends: 243 [2021-04-16 07:27:12,377 INFO L226 Difference]: Without dead ends: 119 [2021-04-16 07:27:12,389 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 571.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-16 07:27:12,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-04-16 07:27:12,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-04-16 07:27:12,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 94 states have (on average 1.4574468085106382) internal successors, (137), 95 states have internal predecessors, (137), 16 states have call successors, (16), 11 states have call predecessors, (16), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-04-16 07:27:12,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 165 transitions. [2021-04-16 07:27:12,544 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 165 transitions. Word has length 39 [2021-04-16 07:27:12,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:27:12,545 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 165 transitions. [2021-04-16 07:27:12,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-04-16 07:27:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 165 transitions. [2021-04-16 07:27:12,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-04-16 07:27:12,550 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:27:12,550 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:27:12,550 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 07:27:12,551 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:27:12,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:27:12,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1349629939, now seen corresponding path program 1 times [2021-04-16 07:27:12,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:27:12,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001056190] [2021-04-16 07:27:12,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:27:12,558 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 07:27:12,602 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2021-04-16 07:27:12,603 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-04-16 07:27:12,610 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-16 07:27:12,635 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-04-16 07:27:12,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 07:27:12 BoogieIcfgContainer [2021-04-16 07:27:12,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-16 07:27:12,638 INFO L168 Benchmark]: Toolchain (without parser) took 5197.75 ms. Allocated memory was 184.5 MB in the beginning and 239.1 MB in the end (delta: 54.5 MB). Free memory was 149.7 MB in the beginning and 136.4 MB in the end (delta: 13.3 MB). Peak memory consumption was 68.7 MB. Max. memory is 8.0 GB. [2021-04-16 07:27:12,639 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 184.5 MB. Free memory is still 167.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 07:27:12,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.22 ms. Allocated memory is still 184.5 MB. Free memory was 149.7 MB in the beginning and 163.1 MB in the end (delta: -13.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-04-16 07:27:12,640 INFO L168 Benchmark]: Boogie Preprocessor took 132.56 ms. Allocated memory is still 184.5 MB. Free memory was 163.1 MB in the beginning and 159.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-04-16 07:27:12,641 INFO L168 Benchmark]: RCFGBuilder took 1614.18 ms. Allocated memory is still 184.5 MB. Free memory was 159.5 MB in the beginning and 97.6 MB in the end (delta: 61.9 MB). Peak memory consumption was 61.9 MB. Max. memory is 8.0 GB. [2021-04-16 07:27:12,642 INFO L168 Benchmark]: TraceAbstraction took 2672.44 ms. Allocated memory was 184.5 MB in the beginning and 239.1 MB in the end (delta: 54.5 MB). Free memory was 97.1 MB in the beginning and 136.4 MB in the end (delta: -39.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. [2021-04-16 07:27:12,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 184.5 MB. Free memory is still 167.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 756.22 ms. Allocated memory is still 184.5 MB. Free memory was 149.7 MB in the beginning and 163.1 MB in the end (delta: -13.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 132.56 ms. Allocated memory is still 184.5 MB. Free memory was 163.1 MB in the beginning and 159.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1614.18 ms. Allocated memory is still 184.5 MB. Free memory was 159.5 MB in the beginning and 97.6 MB in the end (delta: 61.9 MB). Peak memory consumption was 61.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2672.44 ms. Allocated memory was 184.5 MB in the beginning and 239.1 MB in the end (delta: 54.5 MB). Free memory was 97.1 MB in the beginning and 136.4 MB in the end (delta: -39.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 463]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L181] unsigned int Id_MCDC_104; [L182] UINT16 Id_MCDC_105; [L183] UINT16 Id_MCDC_106; [L184] Od_IndexTable* Id_MCDC_107; [L185] Od_IndexTable* Id_MCDC_108; [L186] Od_IndexTable* Id_MCDC_109; [L187] Od_IndexTable* Id_MCDC_110; [L188] Od_IndexTable* Id_MCDC_111; [L189] UINT32 Id_MCDC_112 [4]; [L190] CanOpenNode Id_MCDC_113; [L191] UINT32 Id_MCDC_114=0; [L429] void * Id_MCDC_143; [L430] void * Id_MCDC_144; [L431] void * Id_MCDC_145; [L432] void * Id_MCDC_146; [L433] void * Id_MCDC_147; [L434] void * Id_MCDC_148; [L435] int Id_MCDC_149; [L436] int Id_MCDC_150; [L437] int Id_MCDC_151; [L438] int Id_MCDC_152; [L439] int Id_MCDC_153; [L440] int Id_MCDC_154; [L441] int Id_MCDC_155; [L442] short Id_MCDC_156; [L443] short Id_MCDC_157; [L444] FILE* Id_MCDC_158; [L445] unsigned short Id_MCDC_159; [L446] unsigned short Id_MCDC_160; [L447] unsigned short Id_MCDC_161=0; [L448] unsigned short Id_MCDC_162=0; [L449] char Id_MCDC_163; [L450] char Id_MCDC_164; [L451] Id_MCDC_158 = fopen("in.eds", "r") [L452] COND FALSE !(Id_MCDC_158 == (( void * ) 0)) [L457] CALL Id_MCDC_100() [L422] int Id_MCDC_141; [L423] void * Id_MCDC_142; [L424] CALL Id_MCDC_99() [L402] CHAR Id_MCDC_139 [4]={0, 0, 0, 0}; [L403] UINT32 Id_MCDC_140=0; [L404] Id_MCDC_113.Id_MCDC_66 = ( PDO_Buffer* ) malloc(372) [L405] CALL Id_MCDC_97() [L333] UINT32 Id_MCDC_123; [L334] UINT32 Id_MCDC_124; [L335] UINT32 Id_MCDC_125; [L336] UINT32 Id_MCDC_126; [L337] UINT32 Id_MCDC_127; [L338] UINT32 Id_MCDC_128=0x00; [L339] UINT16 Id_MCDC_129; [L340] UINT32 Id_MCDC_130=0x00; [L341] UINT32 Id_MCDC_131=0x00; [L342] UINT8 Id_MCDC_35=0; [L343] UINT8 Id_MCDC_132=0; [L344] UINT8 Id_MCDC_36=0; [L345] UINT8 Id_MCDC_133=0; [L346] UINT8 Id_MCDC_134=0x00; [L347] INT32 Id_MCDC_135; [L348] void * Id_MCDC_136; [L349] UINT32* Id_MCDC_137; [L350] UINT16 Id_MCDC_138; [L351] Id_MCDC_123 = 0x1800 [L352] Id_MCDC_132 = 0 [L352] COND FALSE !(Id_MCDC_132 < 4) [L356] COND FALSE !(Id_MCDC_123 <= 0x1803) [L398] return 0x00; [L338] UINT32 Id_MCDC_128=0x00; [L398] return 0x00; [L340] UINT32 Id_MCDC_130=0x00; [L398] return 0x00; [L341] UINT32 Id_MCDC_131=0x00; [L398] return 0x00; [L398] return 0x00; [L398] return 0x00; [L405] RET Id_MCDC_97() [L406] Id_MCDC_140 = 0 [L406] COND FALSE !(Id_MCDC_140 < 4) [L417] CALL Id_MCDC_95(4, Id_MCDC_139) [L282] UINT32 Id_MCDC_121=0; [L283] UINT32 Id_MCDC_122=0; [L284] COND FALSE !(Id_MCDC_93 < 2) [L288] COND FALSE !(Id_MCDC_93 != 2) [L294] EXPR Id_MCDC_94[1] [L294] Id_MCDC_122 = Id_MCDC_94[1] [L296] EXPR Id_MCDC_94[0] [L296] CALL Id_MCDC_92(Id_MCDC_94[0], Id_MCDC_122) [L251] UINT32 Id_MCDC_117=0; [L252] UINT32 Id_MCDC_118=0; [L253] UINT32 Id_MCDC_119=1; [L254] UINT32 Id_MCDC_120=0; [L255] COND TRUE Id_MCDC_90 > Id_MCDC_91 [L257] Id_MCDC_117 = Id_MCDC_90 [L258] Id_MCDC_118 = Id_MCDC_91 [L270] COND TRUE Id_MCDC_119 != 0 [L272] CALL avoid_zero(Id_MCDC_118 != 0) [L11] COND FALSE !(!y) [L272] RET avoid_zero(Id_MCDC_118 != 0) [L273] Id_MCDC_120 = ( UINT32 ) (Id_MCDC_117 / Id_MCDC_118) [L274] CALL __VERIFIER_assert(( long long ) (Id_MCDC_120 * Id_MCDC_118) >= 0 && ( long long ) (Id_MCDC_120 * Id_MCDC_118) <= 4294967295) [L461] COND TRUE ! (Id_MCDC_103) [L463] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 135 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 2512.9ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 23.0ms, AutomataDifference: 1265.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 31.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 145 SDtfs, 204 SDslu, 29 SDs, 0 SdLazy, 107 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 568.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 571.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 135.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...