/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector-regression/signextension-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 21:59:00,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 21:59:00,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 21:59:00,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 21:59:00,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 21:59:00,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 21:59:00,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 21:59:00,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 21:59:00,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 21:59:00,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 21:59:00,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 21:59:00,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 21:59:00,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 21:59:00,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 21:59:00,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 21:59:00,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 21:59:00,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 21:59:00,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 21:59:00,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 21:59:00,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 21:59:00,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 21:59:00,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 21:59:00,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 21:59:00,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 21:59:00,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 21:59:00,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 21:59:00,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 21:59:00,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 21:59:00,173 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-06 21:59:00,200 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 21:59:00,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 21:59:00,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 21:59:00,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 21:59:00,202 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 21:59:00,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 21:59:00,203 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 21:59:00,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 21:59:00,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 21:59:00,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 21:59:00,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 21:59:00,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 21:59:00,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 21:59:00,204 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 21:59:00,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 21:59:00,205 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 21:59:00,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 21:59:00,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 21:59:00,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 21:59:00,205 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 21:59:00,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 21:59:00,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 21:59:00,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 21:59:00,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 21:59:00,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 21:59:00,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 21:59:00,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 21:59:00,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 21:59:00,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 21:59:00,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 21:59:00,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 21:59:00,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 21:59:00,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 21:59:00,643 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 21:59:00,644 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 21:59:00,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension-2.c [2020-11-06 21:59:00,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71067b4fa/6fbbca508ac7419a9c9b09513cbeb771/FLAGe463cd1c4 [2020-11-06 21:59:01,420 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 21:59:01,421 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension-2.c [2020-11-06 21:59:01,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71067b4fa/6fbbca508ac7419a9c9b09513cbeb771/FLAGe463cd1c4 [2020-11-06 21:59:01,804 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71067b4fa/6fbbca508ac7419a9c9b09513cbeb771 [2020-11-06 21:59:01,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 21:59:01,814 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 21:59:01,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 21:59:01,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 21:59:01,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 21:59:01,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:01" (1/1) ... [2020-11-06 21:59:01,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@109b8f3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:01, skipping insertion in model container [2020-11-06 21:59:01,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:01" (1/1) ... [2020-11-06 21:59:01,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 21:59:01,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 21:59:02,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:59:02,012 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 21:59:02,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:59:02,041 INFO L208 MainTranslator]: Completed translation [2020-11-06 21:59:02,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:02 WrapperNode [2020-11-06 21:59:02,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 21:59:02,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 21:59:02,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 21:59:02,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 21:59:02,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:02" (1/1) ... [2020-11-06 21:59:02,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:02" (1/1) ... [2020-11-06 21:59:02,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:02" (1/1) ... [2020-11-06 21:59:02,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:02" (1/1) ... [2020-11-06 21:59:02,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:02" (1/1) ... [2020-11-06 21:59:02,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:02" (1/1) ... [2020-11-06 21:59:02,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:02" (1/1) ... [2020-11-06 21:59:02,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 21:59:02,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 21:59:02,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 21:59:02,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 21:59:02,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:02" (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 [2020-11-06 21:59:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 21:59:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 21:59:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 21:59:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 21:59:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 21:59:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 21:59:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 21:59:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 21:59:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 21:59:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 21:59:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 21:59:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 21:59:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 21:59:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 21:59:02,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 21:59:02,530 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 21:59:02,530 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-06 21:59:02,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:02 BoogieIcfgContainer [2020-11-06 21:59:02,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 21:59:02,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 21:59:02,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 21:59:02,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 21:59:02,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:59:01" (1/3) ... [2020-11-06 21:59:02,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc6408a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:02, skipping insertion in model container [2020-11-06 21:59:02,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:02" (2/3) ... [2020-11-06 21:59:02,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc6408a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:02, skipping insertion in model container [2020-11-06 21:59:02,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:02" (3/3) ... [2020-11-06 21:59:02,540 INFO L111 eAbstractionObserver]: Analyzing ICFG signextension-2.c [2020-11-06 21:59:02,562 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 21:59:02,572 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 21:59:02,588 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 21:59:02,616 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 21:59:02,616 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 21:59:02,616 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 21:59:02,616 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 21:59:02,616 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 21:59:02,616 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 21:59:02,617 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 21:59:02,617 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 21:59:02,633 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-11-06 21:59:02,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-06 21:59:02,655 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:59:02,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 21:59:02,657 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:59:02,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:59:02,663 INFO L82 PathProgramCache]: Analyzing trace with hash -136836000, now seen corresponding path program 1 times [2020-11-06 21:59:02,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:59:02,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666282472] [2020-11-06 21:59:02,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:59:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:59:03,228 WARN L194 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 29 [2020-11-06 21:59:03,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:59:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:59:03,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:59:03,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666282472] [2020-11-06 21:59:03,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:59:03,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 21:59:03,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736230728] [2020-11-06 21:59:03,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 21:59:03,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:59:03,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 21:59:03,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 21:59:03,306 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2020-11-06 21:59:03,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:59:03,415 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-11-06 21:59:03,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-06 21:59:03,417 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-06 21:59:03,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:59:03,423 INFO L225 Difference]: With dead ends: 21 [2020-11-06 21:59:03,424 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 21:59:03,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-06 21:59:03,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 21:59:03,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 21:59:03,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 21:59:03,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 21:59:03,457 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-11-06 21:59:03,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:59:03,457 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 21:59:03,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 21:59:03,458 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 21:59:03,458 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 21:59:03,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 21:59:03,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 21:59:03,518 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-11-06 21:59:03,518 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-06 21:59:03,519 INFO L266 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-11-06 21:59:03,519 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-06 21:59:03,519 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 21:59:03,519 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-06 21:59:03,519 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 21:59:03,520 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 21:59:03,520 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-06 21:59:03,520 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 21:59:03,520 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 21:59:03,520 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 5 29) the Hoare annotation is: true [2020-11-06 21:59:03,520 INFO L266 CegarLoopResult]: For program point mainFINAL(lines 5 29) no Hoare annotation was computed. [2020-11-06 21:59:03,521 INFO L266 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-11-06 21:59:03,521 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 5 29) no Hoare annotation was computed. [2020-11-06 21:59:03,521 INFO L262 CegarLoopResult]: At program point L23(lines 5 29) the Hoare annotation is: false [2020-11-06 21:59:03,521 INFO L266 CegarLoopResult]: For program point L21(lines 21 24) no Hoare annotation was computed. [2020-11-06 21:59:03,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:59:03 BoogieIcfgContainer [2020-11-06 21:59:03,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 21:59:03,533 INFO L168 Benchmark]: Toolchain (without parser) took 1723.64 ms. Allocated memory is still 158.3 MB. Free memory was 133.5 MB in the beginning and 94.5 MB in the end (delta: 39.0 MB). Peak memory consumption was 40.1 MB. Max. memory is 8.0 GB. [2020-11-06 21:59:03,534 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 158.3 MB. Free memory is still 131.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 21:59:03,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.80 ms. Allocated memory is still 158.3 MB. Free memory was 132.8 MB in the beginning and 123.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-11-06 21:59:03,536 INFO L168 Benchmark]: Boogie Preprocessor took 32.20 ms. Allocated memory is still 158.3 MB. Free memory was 123.8 MB in the beginning and 122.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-06 21:59:03,537 INFO L168 Benchmark]: RCFGBuilder took 456.31 ms. Allocated memory is still 158.3 MB. Free memory was 121.9 MB in the beginning and 110.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-11-06 21:59:03,538 INFO L168 Benchmark]: TraceAbstraction took 997.97 ms. Allocated memory is still 158.3 MB. Free memory was 109.9 MB in the beginning and 94.5 MB in the end (delta: 15.5 MB). Peak memory consumption was 17.0 MB. Max. memory is 8.0 GB. [2020-11-06 21:59:03,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 158.3 MB. Free memory is still 131.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 225.80 ms. Allocated memory is still 158.3 MB. Free memory was 132.8 MB in the beginning and 123.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.20 ms. Allocated memory is still 158.3 MB. Free memory was 123.8 MB in the beginning and 122.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 456.31 ms. Allocated memory is still 158.3 MB. Free memory was 121.9 MB in the beginning and 110.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 997.97 ms. Allocated memory is still 158.3 MB. Free memory was 109.9 MB in the beginning and 94.5 MB in the end (delta: 15.5 MB). Peak memory consumption was 17.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 5 SDslu, 9 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 36 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 688 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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 proved your program to be correct! Received shutdown request...