/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/freire1_valuebound50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 05:24:18,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 05:24:18,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 05:24:18,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-16 05:24:18,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-16 05:24:18,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-16 05:24:18,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-16 05:24:18,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-16 05:24:18,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-16 05:24:18,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-16 05:24:18,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-16 05:24:18,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-16 05:24:18,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 05:24:18,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 05:24:18,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 05:24:18,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 05:24:18,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 05:24:18,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 05:24:18,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 05:24:18,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 05:24:18,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 05:24:18,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 05:24:18,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 05:24:18,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 05:24:18,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-16 05:24:18,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-16 05:24:18,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-16 05:24:18,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-16 05:24:18,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-16 05:24:18,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-16 05:24:18,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-16 05:24:18,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-16 05:24:18,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-16 05:24:18,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 05:24:18,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 05:24:18,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 05:24:18,314 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-04-16 05:24:18,328 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 05:24:18,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 05:24:18,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 05:24:18,331 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 05:24:18,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 05:24:18,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 05:24:18,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 05:24:18,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 05:24:18,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 05:24:18,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 05:24:18,332 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 05:24:18,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 05:24:18,333 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 05:24:18,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 05:24:18,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 05:24:18,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 05:24:18,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 05:24:18,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 05:24:18,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 05:24:18,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 05:24:18,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-16 05:24:18,335 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-04-16 05:24:18,335 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 05:24:18,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 05:24:18,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 05:24:18,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 05:24:18,634 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 05:24:18,634 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 05:24:18,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/freire1_valuebound50.c [2021-04-16 05:24:18,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c84e9f14/d78cbc5ab9e044148f76ad37bbcd4e8d/FLAG4d3c1b4d3 [2021-04-16 05:24:18,994 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 05:24:18,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire1_valuebound50.c [2021-04-16 05:24:18,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c84e9f14/d78cbc5ab9e044148f76ad37bbcd4e8d/FLAG4d3c1b4d3 [2021-04-16 05:24:19,434 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c84e9f14/d78cbc5ab9e044148f76ad37bbcd4e8d [2021-04-16 05:24:19,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 05:24:19,438 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-16 05:24:19,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 05:24:19,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 05:24:19,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 05:24:19,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 05:24:19" (1/1) ... [2021-04-16 05:24:19,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a6d4082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:19, skipping insertion in model container [2021-04-16 05:24:19,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 05:24:19" (1/1) ... [2021-04-16 05:24:19,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 05:24:19,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 05:24:19,645 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire1_valuebound50.c[712,725] [2021-04-16 05:24:19,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 05:24:19,672 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 05:24:19,694 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire1_valuebound50.c[712,725] [2021-04-16 05:24:19,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 05:24:19,717 INFO L208 MainTranslator]: Completed translation [2021-04-16 05:24:19,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:19 WrapperNode [2021-04-16 05:24:19,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 05:24:19,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 05:24:19,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 05:24:19,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 05:24:19,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:19" (1/1) ... [2021-04-16 05:24:19,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:19" (1/1) ... [2021-04-16 05:24:19,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:19" (1/1) ... [2021-04-16 05:24:19,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:19" (1/1) ... [2021-04-16 05:24:19,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:19" (1/1) ... [2021-04-16 05:24:19,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:19" (1/1) ... [2021-04-16 05:24:19,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:19" (1/1) ... [2021-04-16 05:24:19,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 05:24:19,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 05:24:19,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 05:24:19,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 05:24:19,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:19" (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 05:24:19,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 05:24:19,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 05:24:19,894 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 05:24:19,895 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-16 05:24:19,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 05:24:19,895 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 05:24:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 05:24:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 05:24:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 05:24:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 05:24:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2021-04-16 05:24:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-16 05:24:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 05:24:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 05:24:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 05:24:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 05:24:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 05:24:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 05:24:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 05:24:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 05:24:20,082 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 05:24:20,082 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-04-16 05:24:20,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 05:24:20 BoogieIcfgContainer [2021-04-16 05:24:20,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 05:24:20,084 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-04-16 05:24:20,084 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-04-16 05:24:20,084 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-04-16 05:24:20,086 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 05:24:20" (1/1) ... [2021-04-16 05:24:20,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 16.04 05:24:20 BasicIcfg [2021-04-16 05:24:20,098 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-04-16 05:24:20,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 05:24:20,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 05:24:20,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 05:24:20,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 05:24:19" (1/4) ... [2021-04-16 05:24:20,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691e1b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 05:24:20, skipping insertion in model container [2021-04-16 05:24:20,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:19" (2/4) ... [2021-04-16 05:24:20,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691e1b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 05:24:20, skipping insertion in model container [2021-04-16 05:24:20,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 05:24:20" (3/4) ... [2021-04-16 05:24:20,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691e1b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 05:24:20, skipping insertion in model container [2021-04-16 05:24:20,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 16.04 05:24:20" (4/4) ... [2021-04-16 05:24:20,103 INFO L111 eAbstractionObserver]: Analyzing ICFG freire1_valuebound50.cJordan [2021-04-16 05:24:20,106 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-04-16 05:24:20,109 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 05:24:20,120 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 05:24:20,133 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 05:24:20,133 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-16 05:24:20,133 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-04-16 05:24:20,133 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 05:24:20,133 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 05:24:20,133 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 05:24:20,133 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 05:24:20,133 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 05:24:20,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-04-16 05:24:20,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-04-16 05:24:20,147 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 05:24:20,147 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 05:24:20,148 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 05:24:20,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 05:24:20,151 INFO L82 PathProgramCache]: Analyzing trace with hash 409333534, now seen corresponding path program 1 times [2021-04-16 05:24:20,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 05:24:20,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747511701] [2021-04-16 05:24:20,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 05:24:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 05:24:20,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 05:24:20,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 05:24:20,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 05:24:20,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 05:24:20,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 05:24:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 05:24:20,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 05:24:20,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 05:24:20,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-16 05:24:20,310 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 05:24:20,310 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:237) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:557) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertLocalVarAssignemntPendingContext(AnnotateAndAssertCodeBlocks.java:169) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:120) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:314) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:208) ... 32 more [2021-04-16 05:24:20,314 INFO L168 Benchmark]: Toolchain (without parser) took 875.30 ms. Allocated memory was 127.9 MB in the beginning and 187.7 MB in the end (delta: 59.8 MB). Free memory was 93.2 MB in the beginning and 136.7 MB in the end (delta: -43.5 MB). Peak memory consumption was 15.4 MB. Max. memory is 8.0 GB. [2021-04-16 05:24:20,314 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 127.9 MB. Free memory is still 110.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 05:24:20,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.60 ms. Allocated memory was 127.9 MB in the beginning and 187.7 MB in the end (delta: 59.8 MB). Free memory was 92.9 MB in the beginning and 171.4 MB in the end (delta: -78.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-04-16 05:24:20,315 INFO L168 Benchmark]: Boogie Preprocessor took 51.29 ms. Allocated memory is still 187.7 MB. Free memory was 171.4 MB in the beginning and 169.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-04-16 05:24:20,316 INFO L168 Benchmark]: RCFGBuilder took 313.70 ms. Allocated memory is still 187.7 MB. Free memory was 169.9 MB in the beginning and 156.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-04-16 05:24:20,316 INFO L168 Benchmark]: IcfgTransformer took 13.96 ms. Allocated memory is still 187.7 MB. Free memory was 156.2 MB in the beginning and 154.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-04-16 05:24:20,317 INFO L168 Benchmark]: TraceAbstraction took 213.49 ms. Allocated memory is still 187.7 MB. Free memory was 154.1 MB in the beginning and 136.7 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-04-16 05:24:20,319 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 127.9 MB. Free memory is still 110.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 275.60 ms. Allocated memory was 127.9 MB in the beginning and 187.7 MB in the end (delta: 59.8 MB). Free memory was 92.9 MB in the beginning and 171.4 MB in the end (delta: -78.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 51.29 ms. Allocated memory is still 187.7 MB. Free memory was 171.4 MB in the beginning and 169.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 313.70 ms. Allocated memory is still 187.7 MB. Free memory was 169.9 MB in the beginning and 156.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 13.96 ms. Allocated memory is still 187.7 MB. Free memory was 156.2 MB in the beginning and 154.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 213.49 ms. Allocated memory is still 187.7 MB. Free memory was 154.1 MB in the beginning and 136.7 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:237) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...