/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/ldv-regression/test30-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:27:00,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:27:00,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:27:00,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:27:00,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:27:00,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:27:00,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:27:00,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:27:00,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:27:00,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:27:00,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:27:00,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:27:00,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:27:00,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:27:00,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:27:00,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:27:00,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:27:00,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:27:00,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:27:00,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:27:00,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:27:00,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:27:00,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:27:00,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:27:00,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 18:27:00,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 18:27:00,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 18:27:00,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 18:27:00,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 18:27:00,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 18:27:00,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 18:27:00,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 18:27:00,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 18:27:00,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 18:27:00,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 18:27:00,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 18:27:00,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 18:27:00,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 18:27:00,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:27:00,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:27:00,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:27:00,139 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 [2020-10-23 18:27:00,198 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:27:00,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:27:00,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:27:00,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:27:00,201 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:27:00,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:27:00,201 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:27:00,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:27:00,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:27:00,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:27:00,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:27:00,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:27:00,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:27:00,203 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:27:00,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:27:00,203 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:27:00,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:27:00,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:27:00,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:27:00,204 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:27:00,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:27:00,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:27:00,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:27:00,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:27:00,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:27:00,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:27:00,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:27:00,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:27:00,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:27:00,206 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:27:00,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:27:00,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:27:00,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:27:00,642 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:27:00,642 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:27:00,644 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test30-1.c [2020-10-23 18:27:00,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15f640995/47523eafc5a94100995c51268f2ed1a0/FLAG7c1dc47f0 [2020-10-23 18:27:01,480 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:27:01,480 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test30-1.c [2020-10-23 18:27:01,488 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15f640995/47523eafc5a94100995c51268f2ed1a0/FLAG7c1dc47f0 [2020-10-23 18:27:01,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15f640995/47523eafc5a94100995c51268f2ed1a0 [2020-10-23 18:27:01,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:27:01,861 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:27:01,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:27:01,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:27:01,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:27:01,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:27:01" (1/1) ... [2020-10-23 18:27:01,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ab50f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:27:01, skipping insertion in model container [2020-10-23 18:27:01,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:27:01" (1/1) ... [2020-10-23 18:27:01,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:27:01,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:27:02,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:27:02,101 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:27:02,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:27:02,138 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:27:02,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:27:02 WrapperNode [2020-10-23 18:27:02,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:27:02,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:27:02,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:27:02,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:27:02,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:27:02" (1/1) ... [2020-10-23 18:27:02,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:27:02" (1/1) ... [2020-10-23 18:27:02,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:27:02" (1/1) ... [2020-10-23 18:27:02,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:27:02" (1/1) ... [2020-10-23 18:27:02,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:27:02" (1/1) ... [2020-10-23 18:27:02,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:27:02" (1/1) ... [2020-10-23 18:27:02,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:27:02" (1/1) ... [2020-10-23 18:27:02,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:27:02,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:27:02,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:27:02,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:27:02,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:27:02" (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 [2020-10-23 18:27:02,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:27:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:27:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:27:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2020-10-23 18:27:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2020-10-23 18:27:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:27:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:27:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:27:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:27:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:27:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2020-10-23 18:27:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:27:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:27:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2020-10-23 18:27:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 18:27:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:27:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:27:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:27:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-23 18:27:02,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:27:02,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 18:27:02,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:27:02,625 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:27:02,625 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 18:27:02,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:27:02 BoogieIcfgContainer [2020-10-23 18:27:02,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:27:02,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:27:02,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:27:02,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:27:02,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:27:01" (1/3) ... [2020-10-23 18:27:02,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd02a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:27:02, skipping insertion in model container [2020-10-23 18:27:02,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:27:02" (2/3) ... [2020-10-23 18:27:02,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd02a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:27:02, skipping insertion in model container [2020-10-23 18:27:02,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:27:02" (3/3) ... [2020-10-23 18:27:02,640 INFO L111 eAbstractionObserver]: Analyzing ICFG test30-1.c [2020-10-23 18:27:02,657 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:27:02,662 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:27:02,679 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:27:02,713 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:27:02,713 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:27:02,713 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:27:02,714 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:27:02,714 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:27:02,714 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:27:02,714 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:27:02,714 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:27:02,752 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-23 18:27:02,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-23 18:27:02,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:27:02,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:27:02,772 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:27:02,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:27:02,788 INFO L82 PathProgramCache]: Analyzing trace with hash -715111646, now seen corresponding path program 1 times [2020-10-23 18:27:02,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:27:02,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783486787] [2020-10-23 18:27:02,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:27:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:27:03,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:27:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:27:03,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:27:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:27:03,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:27:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:27:03,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:27:03,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783486787] [2020-10-23 18:27:03,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:27:03,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 18:27:03,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967429332] [2020-10-23 18:27:03,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:27:03,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:27:03,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:27:03,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:27:03,765 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 11 states. [2020-10-23 18:27:04,264 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-23 18:27:04,424 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-23 18:27:04,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:27:04,912 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2020-10-23 18:27:04,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 18:27:04,914 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-10-23 18:27:04,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:27:04,921 INFO L225 Difference]: With dead ends: 31 [2020-10-23 18:27:04,922 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:27:04,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-10-23 18:27:04,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:27:04,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:27:04,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:27:04,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:27:04,956 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-23 18:27:04,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:27:04,957 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:27:04,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:27:04,957 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:27:04,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:27:04,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:27:04,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:27:05,203 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 37 [2020-10-23 18:27:05,411 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 63 [2020-10-23 18:27:05,520 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 37 [2020-10-23 18:27:05,773 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 50 [2020-10-23 18:27:05,776 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-23 18:27:05,778 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-23 18:27:05,778 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-23 18:27:05,778 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-23 18:27:05,779 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:27:05,780 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#global~0.base| |old(~#global~0.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#global~0.offset| |old(~#global~0.offset)|) (= |old(~#a~0.base)| |~#a~0.base|) (= |old(#t~string4.offset)| |#t~string4.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(#valid)| |#valid|) (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.base| |old(#t~string5.base)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-10-23 18:27:05,780 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:27:05,780 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:27:05,780 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4)) (.cse1 (select |#memory_$Pointer$.base| |~#global~0.base|))) (and (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|) (= |~#b~0.base| (select .cse1 .cse2)) (= (select .cse0 .cse2) |~#b~0.offset|) (= (select .cse1 |~#global~0.offset|) |~#a~0.base|) (= |~#global~0.offset| 0) (not (= |~#b~0.base| |~#a~0.base|)))) [2020-10-23 18:27:05,780 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:27:05,782 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:27:05,782 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-23 18:27:05,783 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 21 35) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse1 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= (select .cse1 |~#global~0.offset|) |~#a~0.base|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse0 .cse2) |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|) (not (= |~#b~0.base| (select .cse1 .cse2))))) [2020-10-23 18:27:05,783 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 21 35) no Hoare annotation was computed. [2020-10-23 18:27:05,783 INFO L270 CegarLoopResult]: At program point L28(lines 22 35) the Hoare annotation is: (let ((.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (not (= |~#a~0.base| (select .cse0 |~#global~0.offset|))) (not (= |~#a~0.offset| (select .cse1 |~#global~0.offset|))) (not (= (select .cse1 .cse2) |~#b~0.offset|)) (not (= |~#global~0.offset| 0)) (= |~#a~0.base| |~#b~0.base|) (not (= (select .cse0 .cse2) |~#b~0.base|)))) [2020-10-23 18:27:05,784 INFO L274 CegarLoopResult]: For program point L27(lines 27 29) no Hoare annotation was computed. [2020-10-23 18:27:05,784 INFO L270 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse1 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= (select .cse1 |~#global~0.offset|) |~#a~0.base|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse0 .cse2) |~#b~0.offset|)) (let ((.cse3 (select |#memory_$Pointer$.offset| main_~pd~0.base)) (.cse4 (select |#memory_$Pointer$.base| main_~pd~0.base))) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select .cse3 4) |~#b~0.offset|) (= |#memory_int| |old(#memory_int)|) (= (select .cse3 main_~pd~0.offset) |~#a~0.offset|) (= main_~pd~0.offset 0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |~#a~0.base| (select .cse4 main_~pd~0.offset)) (= |~#b~0.base| (select .cse4 4)))) (= |~#b~0.base| |~#a~0.base|) (not (= |~#b~0.base| (select .cse1 .cse2))))) [2020-10-23 18:27:05,786 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 21 35) no Hoare annotation was computed. [2020-10-23 18:27:05,786 INFO L274 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-10-23 18:27:05,787 INFO L274 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-10-23 18:27:05,788 INFO L274 CegarLoopResult]: For program point assign2FINAL(lines 16 19) no Hoare annotation was computed. [2020-10-23 18:27:05,788 INFO L270 CegarLoopResult]: At program point assign2ENTRY(lines 16 19) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse1 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= (select .cse1 |~#global~0.offset|) |~#a~0.base|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse0 .cse2) |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|) (not (= |~#b~0.base| (select .cse1 .cse2))))) [2020-10-23 18:27:05,788 INFO L274 CegarLoopResult]: For program point assign2EXIT(lines 16 19) no Hoare annotation was computed. [2020-10-23 18:27:05,790 INFO L270 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse3 (+ |~#global~0.offset| 4))) (or (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (let ((.cse1 (not (= 4 |assign2_#in~pb.offset|)))) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or .cse1 (and (= |assign2_#t~mem8.offset| (select (select |old(#memory_$Pointer$.offset)| |assign2_#in~pa.base|) |assign2_#in~pa.offset|)) (= (select (select |old(#memory_$Pointer$.offset)| |assign2_#in~pb.base|) 4) |assign2_#t~mem9.offset|))) (= |#memory_int| |old(#memory_int)|) (or .cse1 (and (= |assign2_#t~mem8.base| (select (select |old(#memory_$Pointer$.base)| |assign2_#in~pa.base|) |assign2_#in~pa.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |assign2_#in~pb.base|) 4) |assign2_#t~mem9.base|))) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|))) (not (= (select .cse2 |~#global~0.offset|) |~#a~0.base|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse0 .cse3) |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|) (not (= |~#b~0.base| (select .cse2 .cse3))))) [2020-10-23 18:27:05,790 INFO L274 CegarLoopResult]: For program point assignEXIT(lines 11 14) no Hoare annotation was computed. [2020-10-23 18:27:05,790 INFO L270 CegarLoopResult]: At program point assignENTRY(lines 11 14) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse1 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= (select .cse1 |~#global~0.offset|) |~#a~0.base|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse0 .cse2) |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|) (not (= |~#b~0.base| (select .cse1 .cse2))))) [2020-10-23 18:27:05,790 INFO L274 CegarLoopResult]: For program point assignFINAL(lines 11 14) no Hoare annotation was computed. [2020-10-23 18:27:05,811 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-23 18:27:05,812 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-23 18:27:05,813 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-23 18:27:05,815 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-23 18:27:05,818 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-23 18:27:05,820 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-23 18:27:05,820 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-23 18:27:05,822 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-23 18:27:05,827 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-23 18:27:05,827 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-23 18:27:05,827 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-23 18:27:05,829 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-23 18:27:05,830 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-23 18:27:05,834 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-23 18:27:05,835 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-23 18:27:05,835 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-23 18:27:05,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:27:05 BoogieIcfgContainer [2020-10-23 18:27:05,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:27:05,853 INFO L168 Benchmark]: Toolchain (without parser) took 3994.80 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 126.7 MB in the beginning and 115.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 96.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:27:05,855 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:27:05,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.09 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 116.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:27:05,858 INFO L168 Benchmark]: Boogie Preprocessor took 38.30 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 115.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:27:05,861 INFO L168 Benchmark]: RCFGBuilder took 449.06 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 131.0 MB in the end (delta: -16.1 MB). Peak memory consumption was 15.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:27:05,862 INFO L168 Benchmark]: TraceAbstraction took 3217.47 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 130.5 MB in the beginning and 115.7 MB in the end (delta: 14.9 MB). Peak memory consumption was 99.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:27:05,871 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 275.09 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 116.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.30 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 115.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 449.06 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 131.0 MB in the end (delta: -16.1 MB). Peak memory consumption was 15.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3217.47 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 130.5 MB in the beginning and 115.7 MB in the end (delta: 14.9 MB). Peak memory consumption was 99.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * 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: 22]: Loop Invariant [2020-10-23 18:27:05,891 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-23 18:27:05,891 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-23 18:27:05,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-23 18:27:05,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-23 18:27:05,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-23 18:27:05,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-23 18:27:05,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-23 18:27:05,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-23 18:27:05,896 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-23 18:27:05,896 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-23 18:27:05,896 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-23 18:27:05,897 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-23 18:27:05,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-23 18:27:05,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-23 18:27:05,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-23 18:27:05,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: ((((!(a == \old(#memory_$Pointer$)[global][global]) || !(a == \old(#memory_$Pointer$)[global][global])) || !(\old(#memory_$Pointer$)[global][global + 4] == b)) || !(global == 0)) || a == b) || !(\old(#memory_$Pointer$)[global][global + 4] == b) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 15 SDslu, 19 SDs, 0 SdLazy, 124 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 10 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 476 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 10 FomulaSimplificationsInter, 444 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 8658 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...