/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/sizeofparameters_test.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:21:42,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:21:42,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:21:42,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:21:42,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:21:42,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:21:42,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:21:42,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:21:42,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:21:42,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:21:42,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:21:42,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:21:42,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:21:42,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:21:42,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:21:42,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:21:42,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:21:42,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:21:42,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:21:42,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:21:42,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:21:42,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:21:42,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:21:42,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:21:42,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:21:42,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:21:42,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:21:42,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:21:42,219 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:21:42,233 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:21:42,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:21:42,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:21:42,236 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:21:42,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:21:42,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:21:42,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:21:42,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:21:42,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:21:42,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:21:42,239 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:21:42,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:21:42,239 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:21:42,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:21:42,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:21:42,240 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:21:42,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:21:42,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:21:42,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:21:42,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:21:42,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:21:42,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:21:42,242 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:21:42,243 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:21:42,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:21:42,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:21:42,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:21:42,672 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:21:42,680 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:21:42,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/sizeofparameters_test.c [2021-02-24 04:21:42,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf2966119/448cedd1090140419fd9d4d8ed3efd0b/FLAGe5688b1fb [2021-02-24 04:21:43,427 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:21:43,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/sizeofparameters_test.c [2021-02-24 04:21:43,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf2966119/448cedd1090140419fd9d4d8ed3efd0b/FLAGe5688b1fb [2021-02-24 04:21:43,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf2966119/448cedd1090140419fd9d4d8ed3efd0b [2021-02-24 04:21:43,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:21:43,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:21:43,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:21:43,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:21:43,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:21:43,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:21:43" (1/1) ... [2021-02-24 04:21:43,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e8fc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:43, skipping insertion in model container [2021-02-24 04:21:43,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:21:43" (1/1) ... [2021-02-24 04:21:43,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:21:43,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:21:44,064 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/sizeofparameters_test.c[344,357] [2021-02-24 04:21:44,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:21:44,097 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:21:44,117 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/sizeofparameters_test.c[344,357] [2021-02-24 04:21:44,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:21:44,136 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:21:44,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:44 WrapperNode [2021-02-24 04:21:44,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:21:44,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:21:44,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:21:44,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:21:44,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:44" (1/1) ... [2021-02-24 04:21:44,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:44" (1/1) ... [2021-02-24 04:21:44,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:44" (1/1) ... [2021-02-24 04:21:44,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:44" (1/1) ... [2021-02-24 04:21:44,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:44" (1/1) ... [2021-02-24 04:21:44,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:44" (1/1) ... [2021-02-24 04:21:44,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:44" (1/1) ... [2021-02-24 04:21:44,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:21:44,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:21:44,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:21:44,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:21:44,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:44" (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 [2021-02-24 04:21:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:21:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:21:44,286 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:21:44,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-24 04:21:44,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:21:44,286 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-02-24 04:21:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:21:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:21:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:21:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:21:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2021-02-24 04:21:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-24 04:21:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-02-24 04:21:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:21:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:21:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:21:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:21:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:21:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:21:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:21:44,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:21:44,573 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-24 04:21:44,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:21:44 BoogieIcfgContainer [2021-02-24 04:21:44,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:21:44,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:21:44,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:21:44,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:21:44,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:21:43" (1/3) ... [2021-02-24 04:21:44,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d05d581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:21:44, skipping insertion in model container [2021-02-24 04:21:44,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:44" (2/3) ... [2021-02-24 04:21:44,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d05d581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:21:44, skipping insertion in model container [2021-02-24 04:21:44,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:21:44" (3/3) ... [2021-02-24 04:21:44,617 INFO L111 eAbstractionObserver]: Analyzing ICFG sizeofparameters_test.c [2021-02-24 04:21:44,625 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:21:44,630 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:21:44,652 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:21:44,702 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:21:44,706 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:21:44,706 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:21:44,707 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:21:44,707 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:21:44,707 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:21:44,707 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:21:44,707 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:21:44,753 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2021-02-24 04:21:44,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-02-24 04:21:44,777 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:21:44,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:21:44,782 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:21:44,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:21:44,796 INFO L82 PathProgramCache]: Analyzing trace with hash 814850145, now seen corresponding path program 1 times [2021-02-24 04:21:44,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:21:44,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136692051] [2021-02-24 04:21:44,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:21:44,916 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:21:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:45,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:45,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:45,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:45,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:21:45,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:45,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:45,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:21:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:45,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:45,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:45,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:21:45,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136692051] [2021-02-24 04:21:45,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:21:45,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:21:45,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234275558] [2021-02-24 04:21:45,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:21:45,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:21:45,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:21:45,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:21:45,301 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 4 states. [2021-02-24 04:21:45,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:21:45,437 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2021-02-24 04:21:45,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 04:21:45,439 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2021-02-24 04:21:45,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:21:45,447 INFO L225 Difference]: With dead ends: 42 [2021-02-24 04:21:45,447 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 04:21:45,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:21:45,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 04:21:45,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 04:21:45,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 04:21:45,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 04:21:45,480 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2021-02-24 04:21:45,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:21:45,480 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 04:21:45,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:21:45,481 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 04:21:45,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 04:21:45,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:21:45,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 04:21:45,827 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-24 04:21:45,827 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-24 04:21:45,827 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-24 04:21:45,827 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-24 04:21:45,828 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-24 04:21:45,828 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:21:45,828 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-24 04:21:45,828 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 04:21:45,828 INFO L192 CegarLoopUtils]: At program point L3-5(line 3) the Hoare annotation is: true [2021-02-24 04:21:45,828 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-02-24 04:21:45,829 INFO L185 CegarLoopUtils]: 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)|) (= ~globalSize~0 |old(~globalSize~0)|) (= |#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|)) [2021-02-24 04:21:45,829 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-24 04:21:45,829 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-24 04:21:45,829 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 04:21:45,830 INFO L192 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: true [2021-02-24 04:21:45,830 INFO L192 CegarLoopUtils]: At program point fooEXIT(lines 23 25) the Hoare annotation is: true [2021-02-24 04:21:45,830 INFO L185 CegarLoopUtils]: At program point L24-2(line 24) the Hoare annotation is: (not (= ~globalSize~0 4)) [2021-02-24 04:21:45,830 INFO L192 CegarLoopUtils]: At program point fooENTRY(lines 23 25) the Hoare annotation is: true [2021-02-24 04:21:45,830 INFO L192 CegarLoopUtils]: At program point L24-3(lines 23 25) the Hoare annotation is: true [2021-02-24 04:21:45,831 INFO L192 CegarLoopUtils]: At program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: true [2021-02-24 04:21:45,831 INFO L192 CegarLoopUtils]: At program point __blast_assertEXIT(lines 6 9) the Hoare annotation is: true [2021-02-24 04:21:45,831 INFO L192 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: true [2021-02-24 04:21:45,831 INFO L192 CegarLoopUtils]: At program point __blast_assertFINAL(lines 6 9) the Hoare annotation is: true [2021-02-24 04:21:45,831 INFO L192 CegarLoopUtils]: At program point __blast_assertENTRY(lines 6 9) the Hoare annotation is: true [2021-02-24 04:21:45,832 INFO L185 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: (= 4 ~globalSize~0) [2021-02-24 04:21:45,832 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:21:45,832 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 04:21:45,832 INFO L185 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: (= 4 ~globalSize~0) [2021-02-24 04:21:45,832 INFO L185 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: (= |old(~globalSize~0)| ~globalSize~0) [2021-02-24 04:21:45,833 INFO L185 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: (= |old(~globalSize~0)| ~globalSize~0) [2021-02-24 04:21:45,833 INFO L185 CegarLoopUtils]: At program point L15(lines 15 21) the Hoare annotation is: (= |old(~globalSize~0)| ~globalSize~0) [2021-02-24 04:21:45,833 INFO L185 CegarLoopUtils]: At program point L17-2(line 17) the Hoare annotation is: (= |old(~globalSize~0)| ~globalSize~0) [2021-02-24 04:21:45,833 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 15 21) the Hoare annotation is: (= |old(~globalSize~0)| ~globalSize~0) [2021-02-24 04:21:45,834 INFO L185 CegarLoopUtils]: At program point mainFINAL(lines 15 21) the Hoare annotation is: (= 4 ~globalSize~0) [2021-02-24 04:21:45,834 INFO L185 CegarLoopUtils]: At program point mainEXIT(lines 15 21) the Hoare annotation is: (= 4 ~globalSize~0) [2021-02-24 04:21:45,834 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (= 4 ~globalSize~0) [2021-02-24 04:21:45,834 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (= |old(~globalSize~0)| ~globalSize~0) [2021-02-24 04:21:45,834 INFO L185 CegarLoopUtils]: At program point L19-1(line 19) the Hoare annotation is: (= 4 ~globalSize~0) [2021-02-24 04:21:45,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:21:45 BoogieIcfgContainer [2021-02-24 04:21:45,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:21:45,857 INFO L168 Benchmark]: Toolchain (without parser) took 2018.65 ms. Allocated memory is still 151.0 MB. Free memory was 127.1 MB in the beginning and 121.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 57.6 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:45,858 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 125.2 MB in the end (delta: 82.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:21:45,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.12 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 117.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:45,860 INFO L168 Benchmark]: Boogie Preprocessor took 28.33 ms. Allocated memory is still 151.0 MB. Free memory was 117.0 MB in the beginning and 115.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:45,861 INFO L168 Benchmark]: RCFGBuilder took 407.65 ms. Allocated memory is still 151.0 MB. Free memory was 115.7 MB in the beginning and 102.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:45,862 INFO L168 Benchmark]: TraceAbstraction took 1272.51 ms. Allocated memory is still 151.0 MB. Free memory was 101.8 MB in the beginning and 121.2 MB in the end (delta: -19.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:45,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 125.2 MB in the end (delta: 82.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 282.12 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 117.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.33 ms. Allocated memory is still 151.0 MB. Free memory was 117.0 MB in the beginning and 115.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 407.65 ms. Allocated memory is still 151.0 MB. Free memory was 115.7 MB in the beginning and 102.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1272.51 ms. Allocated memory is still 151.0 MB. Free memory was 101.8 MB in the beginning and 121.2 MB in the end (delta: -19.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 23]: Procedure Contract for foo Derived contract for procedure foo: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 15]: Procedure Contract for main Derived contract for procedure main: 4 == globalSize - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 14 SDslu, 16 SDs, 0 SdLazy, 21 SolverSat, 2 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 35 LocationsWithAnnotation, 35 PreInvPairs, 42 NumberOfFragments, 95 HoareAnnotationTreeSize, 35 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 35 FomulaSimplificationsInter, 350 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...