/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_2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 07:27:54,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 07:27:54,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 07:27:54,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-01 07:27:54,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 07:27:54,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 07:27:54,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 07:27:54,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 07:27:54,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 07:27:54,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 07:27:54,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 07:27:54,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 07:27:54,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 07:27:54,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 07:27:54,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 07:27:54,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 07:27:54,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 07:27:54,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 07:27:54,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 07:27:54,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 07:27:54,168 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-01 07:27:54,188 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 07:27:54,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 07:27:54,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 07:27:54,193 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 07:27:54,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 07:27:54,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 07:27:54,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 07:27:54,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 07:27:54,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 07:27:54,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 07:27:54,195 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 07:27:54,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 07:27:54,195 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 07:27:54,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 07:27:54,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 07:27:54,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 07:27:54,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 07:27:54,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 07:27:54,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 07:27:54,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 07:27:54,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-01 07:27:54,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-01 07:27:54,197 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-01 07:27:54,197 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 07:27:54,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 07:27:54,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 07:27:54,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 07:27:54,632 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 07:27:54,633 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 07:27:54,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c [2021-05-01 07:27:54,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f5c9f9e0/5328893ab86448e5a3c12b00f42f26ae/FLAG7436a233c [2021-05-01 07:27:55,398 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 07:27:55,399 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c [2021-05-01 07:27:55,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f5c9f9e0/5328893ab86448e5a3c12b00f42f26ae/FLAG7436a233c [2021-05-01 07:27:55,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f5c9f9e0/5328893ab86448e5a3c12b00f42f26ae [2021-05-01 07:27:55,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 07:27:55,443 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-01 07:27:55,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 07:27:55,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 07:27:55,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 07:27:55,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 07:27:55" (1/1) ... [2021-05-01 07:27:55,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba1fe40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:27:55, skipping insertion in model container [2021-05-01 07:27:55,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 07:27:55" (1/1) ... [2021-05-01 07:27:55,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 07:27:55,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 07:27:55,946 WARN L224 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_2.c[11342,11355] [2021-05-01 07:27:55,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 07:27:55,993 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 07:27:56,074 WARN L224 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_2.c[11342,11355] [2021-05-01 07:27:56,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 07:27:56,107 INFO L208 MainTranslator]: Completed translation [2021-05-01 07:27:56,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:27:56 WrapperNode [2021-05-01 07:27:56,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 07:27:56,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 07:27:56,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 07:27:56,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 07:27:56,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:27:56" (1/1) ... [2021-05-01 07:27:56,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:27:56" (1/1) ... [2021-05-01 07:27:56,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:27:56" (1/1) ... [2021-05-01 07:27:56,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:27:56" (1/1) ... [2021-05-01 07:27:56,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:27:56" (1/1) ... [2021-05-01 07:27:56,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:27:56" (1/1) ... [2021-05-01 07:27:56,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:27:56" (1/1) ... [2021-05-01 07:27:56,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 07:27:56,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 07:27:56,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 07:27:56,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 07:27:56,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:27:56" (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 [2021-05-01 07:27:56,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 07:27:56,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 07:27:56,402 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 07:27:56,402 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 07:27:56,402 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2021-05-01 07:27:56,402 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2021-05-01 07:27:56,402 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2021-05-01 07:27:56,403 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2021-05-01 07:27:56,404 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2021-05-01 07:27:56,404 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2021-05-01 07:27:56,404 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2021-05-01 07:27:56,404 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2021-05-01 07:27:56,404 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 07:27:56,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 07:27:56,405 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 07:27:56,406 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 07:27:56,406 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 07:27:56,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 07:27:56,407 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 07:27:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2021-05-01 07:27:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-05-01 07:27:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-05-01 07:27:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2021-05-01 07:27:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2021-05-01 07:27:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2021-05-01 07:27:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2021-05-01 07:27:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-05-01 07:27:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2021-05-01 07:27:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2021-05-01 07:27:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-05-01 07:27:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 07:27:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 07:27:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-05-01 07:27:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 07:27:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 07:27:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 07:27:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 07:27:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-05-01 07:27:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-01 07:27:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 07:27:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-05-01 07:27:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 07:27:57,385 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 07:27:57,385 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-05-01 07:27:57,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 07:27:57 BoogieIcfgContainer [2021-05-01 07:27:57,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 07:27:57,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 07:27:57,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 07:27:57,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 07:27:57,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 07:27:55" (1/3) ... [2021-05-01 07:27:57,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210cb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 07:27:57, skipping insertion in model container [2021-05-01 07:27:57,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:27:56" (2/3) ... [2021-05-01 07:27:57,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210cb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 07:27:57, skipping insertion in model container [2021-05-01 07:27:57,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 07:27:57" (3/3) ... [2021-05-01 07:27:57,398 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_2.c [2021-05-01 07:27:57,406 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-01 07:27:57,413 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 07:27:57,431 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 07:27:57,472 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 07:27:57,472 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-01 07:27:57,473 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-01 07:27:57,473 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 07:27:57,473 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 07:27:57,473 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 07:27:57,473 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 07:27:57,473 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 07:27:57,492 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) [2021-05-01 07:27:57,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-01 07:27:57,511 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:27:57,512 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] [2021-05-01 07:27:57,515 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:27:57,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:27:57,524 INFO L82 PathProgramCache]: Analyzing trace with hash -540283313, now seen corresponding path program 1 times [2021-05-01 07:27:57,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:27:57,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640874533] [2021-05-01 07:27:57,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:27:57,617 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:27:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:27:57,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:57,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:27:57,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:57,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:27:58,142 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 07:27:58,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:27:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:27:58,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:58,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:27:58,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-01 07:27:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:27:58,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:58,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:27:58,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-01 07:27:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:27:58,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:58,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:27:58,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:58,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:27:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:27:58,242 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:27:58,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640874533] [2021-05-01 07:27:58,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [640874533] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:27:58,245 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:27:58,245 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 07:27:58,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884645363] [2021-05-01 07:27:58,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 07:27:58,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:27:58,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 07:27:58,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 07:27:58,276 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) [2021-05-01 07:27:58,555 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-01 07:27:59,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:27:59,241 INFO L93 Difference]: Finished difference Result 243 states and 363 transitions. [2021-05-01 07:27:59,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 07:27:59,244 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 [2021-05-01 07:27:59,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:27:59,253 INFO L225 Difference]: With dead ends: 243 [2021-05-01 07:27:59,253 INFO L226 Difference]: Without dead ends: 119 [2021-05-01 07:27:59,259 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 494.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-01 07:27:59,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-05-01 07:27:59,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-05-01 07:27:59,334 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) [2021-05-01 07:27:59,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 165 transitions. [2021-05-01 07:27:59,338 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 165 transitions. Word has length 39 [2021-05-01 07:27:59,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:27:59,339 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 165 transitions. [2021-05-01 07:27:59,339 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) [2021-05-01 07:27:59,339 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 165 transitions. [2021-05-01 07:27:59,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-01 07:27:59,342 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:27:59,342 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] [2021-05-01 07:27:59,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 07:27:59,343 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:27:59,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:27:59,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1349629939, now seen corresponding path program 1 times [2021-05-01 07:27:59,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:27:59,344 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401344272] [2021-05-01 07:27:59,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:27:59,347 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:27:59,379 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2021-05-01 07:27:59,379 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-05-01 07:27:59,384 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 07:27:59,404 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-05-01 07:27:59,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 07:27:59 BoogieIcfgContainer [2021-05-01 07:27:59,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 07:27:59,406 INFO L168 Benchmark]: Toolchain (without parser) took 3963.18 ms. Allocated memory was 164.6 MB in the beginning and 207.6 MB in the end (delta: 43.0 MB). Free memory was 128.1 MB in the beginning and 130.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 42.6 MB. Max. memory is 8.0 GB. [2021-05-01 07:27:59,407 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 164.6 MB. Free memory is still 145.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 07:27:59,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.95 ms. Allocated memory is still 164.6 MB. Free memory was 127.9 MB in the beginning and 139.7 MB in the end (delta: -11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-05-01 07:27:59,408 INFO L168 Benchmark]: Boogie Preprocessor took 135.49 ms. Allocated memory is still 164.6 MB. Free memory was 139.7 MB in the beginning and 135.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-05-01 07:27:59,408 INFO L168 Benchmark]: RCFGBuilder took 1141.03 ms. Allocated memory is still 164.6 MB. Free memory was 135.9 MB in the beginning and 122.0 MB in the end (delta: 13.9 MB). Peak memory consumption was 44.3 MB. Max. memory is 8.0 GB. [2021-05-01 07:27:59,408 INFO L168 Benchmark]: TraceAbstraction took 2015.69 ms. Allocated memory was 164.6 MB in the beginning and 207.6 MB in the end (delta: 43.0 MB). Free memory was 122.0 MB in the beginning and 130.0 MB in the end (delta: -8.0 MB). Peak memory consumption was 35.5 MB. Max. memory is 8.0 GB. [2021-05-01 07:27:59,410 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 164.6 MB. Free memory is still 145.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 658.95 ms. Allocated memory is still 164.6 MB. Free memory was 127.9 MB in the beginning and 139.7 MB in the end (delta: -11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 135.49 ms. Allocated memory is still 164.6 MB. Free memory was 139.7 MB in the beginning and 135.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1141.03 ms. Allocated memory is still 164.6 MB. Free memory was 135.9 MB in the beginning and 122.0 MB in the end (delta: 13.9 MB). Peak memory consumption was 44.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2015.69 ms. Allocated memory was 164.6 MB in the beginning and 207.6 MB in the end (delta: 43.0 MB). Free memory was 122.0 MB in the beginning and 130.0 MB in the end (delta: -8.0 MB). Peak memory consumption was 35.5 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_117 - (Id_MCDC_120 * Id_MCDC_118)) >= 0 && ( long long ) (Id_MCDC_117 - (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: 1915.9ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 27.0ms, AutomataDifference: 1001.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 145 SDtfs, 204 SDslu, 29 SDs, 0 SdLazy, 107 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 429.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 494.7ms 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: 64.4ms 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...