/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/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test21-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 20:38:59,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 20:38:59,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 20:38:59,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 20:38:59,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 20:38:59,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 20:38:59,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 20:38:59,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 20:38:59,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 20:38:59,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 20:38:59,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 20:38:59,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 20:38:59,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 20:38:59,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 20:38:59,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 20:38:59,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 20:38:59,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 20:38:59,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 20:38:59,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 20:38:59,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 20:38:59,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 20:38:59,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 20:38:59,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 20:38:59,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 20:38:59,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 20:38:59,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 20:38:59,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 20:38:59,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 20:38:59,659 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 20:38:59,683 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 20:38:59,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 20:38:59,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 20:38:59,686 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 20:38:59,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 20:38:59,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 20:38:59,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 20:38:59,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 20:38:59,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 20:38:59,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 20:38:59,687 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 20:38:59,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 20:38:59,688 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 20:38:59,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 20:38:59,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 20:38:59,688 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 20:38:59,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 20:38:59,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 20:38:59,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 20:38:59,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 20:38:59,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 20:38:59,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 20:38:59,690 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 20:39:00,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 20:39:00,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 20:39:00,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 20:39:00,138 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 20:39:00,139 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 20:39:00,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test21-1.c [2021-02-21 20:39:00,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f1d8fdb7/b4b83285cf7b42f8a3fa88cabef6f8ae/FLAG03e97d868 [2021-02-21 20:39:00,832 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 20:39:00,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test21-1.c [2021-02-21 20:39:00,842 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f1d8fdb7/b4b83285cf7b42f8a3fa88cabef6f8ae/FLAG03e97d868 [2021-02-21 20:39:01,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f1d8fdb7/b4b83285cf7b42f8a3fa88cabef6f8ae [2021-02-21 20:39:01,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 20:39:01,201 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 20:39:01,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 20:39:01,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 20:39:01,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 20:39:01,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:39:01" (1/1) ... [2021-02-21 20:39:01,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db580e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:01, skipping insertion in model container [2021-02-21 20:39:01,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:39:01" (1/1) ... [2021-02-21 20:39:01,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 20:39:01,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 20:39:01,494 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/test21-1.c[892,905] [2021-02-21 20:39:01,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:39:01,514 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 20:39:01,541 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/test21-1.c[892,905] [2021-02-21 20:39:01,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:39:01,573 INFO L208 MainTranslator]: Completed translation [2021-02-21 20:39:01,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:01 WrapperNode [2021-02-21 20:39:01,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 20:39:01,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 20:39:01,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 20:39:01,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 20:39:01,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:01" (1/1) ... [2021-02-21 20:39:01,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:01" (1/1) ... [2021-02-21 20:39:01,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:01" (1/1) ... [2021-02-21 20:39:01,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:01" (1/1) ... [2021-02-21 20:39:01,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:01" (1/1) ... [2021-02-21 20:39:01,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:01" (1/1) ... [2021-02-21 20:39:01,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:01" (1/1) ... [2021-02-21 20:39:01,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 20:39:01,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 20:39:01,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 20:39:01,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 20:39:01,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:01" (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 [2021-02-21 20:39:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 20:39:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 20:39:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 20:39:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2021-02-21 20:39:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2021-02-21 20:39:01,723 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2021-02-21 20:39:01,723 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 20:39:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 20:39:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 20:39:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 20:39:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 20:39:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 20:39:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-02-21 20:39:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure init [2021-02-21 20:39:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 20:39:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2021-02-21 20:39:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure check [2021-02-21 20:39:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 20:39:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 20:39:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 20:39:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 20:39:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 20:39:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 20:39:02,114 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 20:39:02,114 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-21 20:39:02,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:39:02 BoogieIcfgContainer [2021-02-21 20:39:02,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 20:39:02,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 20:39:02,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 20:39:02,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 20:39:02,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 08:39:01" (1/3) ... [2021-02-21 20:39:02,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6461e753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:39:02, skipping insertion in model container [2021-02-21 20:39:02,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:01" (2/3) ... [2021-02-21 20:39:02,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6461e753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:39:02, skipping insertion in model container [2021-02-21 20:39:02,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:39:02" (3/3) ... [2021-02-21 20:39:02,126 INFO L111 eAbstractionObserver]: Analyzing ICFG test21-1.c [2021-02-21 20:39:02,133 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 20:39:02,138 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 20:39:02,157 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 20:39:02,191 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 20:39:02,191 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 20:39:02,191 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 20:39:02,192 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 20:39:02,192 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 20:39:02,192 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 20:39:02,192 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 20:39:02,192 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 20:39:02,229 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2021-02-21 20:39:02,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-02-21 20:39:02,242 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:39:02,243 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 20:39:02,244 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:39:02,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:39:02,251 INFO L82 PathProgramCache]: Analyzing trace with hash 69938154, now seen corresponding path program 1 times [2021-02-21 20:39:02,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:39:02,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041727592] [2021-02-21 20:39:02,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:39:02,345 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:39:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:39:02,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:02,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:39:02,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:02,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:39:02,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:02,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:39:02,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:02,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:39:02,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:02,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:39:02,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:02,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:39:02,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:02,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:39:02,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:39:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:39:02,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:02,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:39:02,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-21 20:39:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:39:02,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:02,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:39:02,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-21 20:39:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:39:02,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:02,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:39:02,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:02,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:39:03,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:03,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:39:03,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-21 20:39:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:39:03,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:03,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:39:03,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:03,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:39:03,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:03,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:39:03,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-02-21 20:39:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:39:03,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:03,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:39:03,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:03,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-21 20:39:03,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:03,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-21 20:39:03,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:03,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 20:39:03,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:03,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 20:39:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-02-21 20:39:03,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041727592] [2021-02-21 20:39:03,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:39:03,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-21 20:39:03,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390977693] [2021-02-21 20:39:03,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-21 20:39:03,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:39:03,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-21 20:39:03,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-02-21 20:39:03,398 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 16 states. [2021-02-21 20:39:05,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:39:05,626 INFO L93 Difference]: Finished difference Result 102 states and 111 transitions. [2021-02-21 20:39:05,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-02-21 20:39:05,629 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 68 [2021-02-21 20:39:05,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:39:05,636 INFO L225 Difference]: With dead ends: 102 [2021-02-21 20:39:05,637 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 20:39:05,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=187, Invalid=1073, Unknown=0, NotChecked=0, Total=1260 [2021-02-21 20:39:05,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 20:39:05,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 20:39:05,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 20:39:05,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 20:39:05,670 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2021-02-21 20:39:05,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:39:05,671 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 20:39:05,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-21 20:39:05,671 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 20:39:05,671 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 20:39:05,672 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 20:39:05,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 20:39:06,868 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2021-02-21 20:39:07,072 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-21 20:39:07,072 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-21 20:39:07,072 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-21 20:39:07,072 INFO L192 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: true [2021-02-21 20:39:07,073 INFO L185 CegarLoopUtils]: At program point initENTRY(lines 13 20) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2021-02-21 20:39:07,073 INFO L192 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: true [2021-02-21 20:39:07,073 INFO L192 CegarLoopUtils]: At program point L19-1(line 19) the Hoare annotation is: true [2021-02-21 20:39:07,073 INFO L192 CegarLoopUtils]: At program point L18-1(line 18) the Hoare annotation is: true [2021-02-21 20:39:07,073 INFO L192 CegarLoopUtils]: At program point L19-2(line 19) the Hoare annotation is: true [2021-02-21 20:39:07,074 INFO L192 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: true [2021-02-21 20:39:07,074 INFO L192 CegarLoopUtils]: At program point L18-2(line 18) the Hoare annotation is: true [2021-02-21 20:39:07,074 INFO L185 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2021-02-21 20:39:07,074 INFO L192 CegarLoopUtils]: At program point L16-1(line 16) the Hoare annotation is: true [2021-02-21 20:39:07,074 INFO L192 CegarLoopUtils]: At program point L15-1(line 15) the Hoare annotation is: true [2021-02-21 20:39:07,074 INFO L192 CegarLoopUtils]: At program point L16-2(line 16) the Hoare annotation is: true [2021-02-21 20:39:07,075 INFO L192 CegarLoopUtils]: At program point initEXIT(lines 13 20) the Hoare annotation is: true [2021-02-21 20:39:07,075 INFO L192 CegarLoopUtils]: At program point initFINAL(lines 13 20) the Hoare annotation is: true [2021-02-21 20:39:07,075 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-21 20:39:07,075 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-21 20:39:07,075 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 20:39:07,075 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-21 20:39:07,076 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-21 20:39:07,076 INFO L192 CegarLoopUtils]: At program point L3-5(line 3) the Hoare annotation is: true [2021-02-21 20:39:07,076 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 11) the Hoare annotation is: true [2021-02-21 20:39:07,076 INFO L192 CegarLoopUtils]: At program point L11(line 11) the Hoare annotation is: true [2021-02-21 20:39:07,076 INFO L192 CegarLoopUtils]: At program point L11-1(line 11) the Hoare annotation is: true [2021-02-21 20:39:07,077 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |old(~#d1~0.base)| |~#d1~0.base|) (= |old(~#d1~0.offset)| |~#d1~0.offset|) (= |old(~#d2~0.offset)| |~#d2~0.offset|) (= |old(#t~string4.offset)| |#t~string4.offset|) (= |old(#valid)| |#valid|) (= |old(~#d2~0.base)| |~#d2~0.base|) (= |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)|)) [2021-02-21 20:39:07,077 INFO L192 CegarLoopUtils]: At program point L11-2(line 11) the Hoare annotation is: true [2021-02-21 20:39:07,077 INFO L192 CegarLoopUtils]: At program point L11-3(line 11) the Hoare annotation is: true [2021-02-21 20:39:07,077 INFO L192 CegarLoopUtils]: At program point L11-4(line 11) the Hoare annotation is: true [2021-02-21 20:39:07,077 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-21 20:39:07,077 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-21 20:39:07,077 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-21 20:39:07,078 INFO L192 CegarLoopUtils]: At program point get_dummyFINAL(lines 22 25) the Hoare annotation is: true [2021-02-21 20:39:07,078 INFO L192 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: true [2021-02-21 20:39:07,078 INFO L192 CegarLoopUtils]: At program point get_dummyENTRY(lines 22 25) the Hoare annotation is: true [2021-02-21 20:39:07,078 INFO L192 CegarLoopUtils]: At program point L24-2(line 24) the Hoare annotation is: true [2021-02-21 20:39:07,078 INFO L192 CegarLoopUtils]: At program point L24-3(line 24) the Hoare annotation is: true [2021-02-21 20:39:07,078 INFO L192 CegarLoopUtils]: At program point L24-4(line 24) the Hoare annotation is: true [2021-02-21 20:39:07,079 INFO L192 CegarLoopUtils]: At program point get_dummyEXIT(lines 22 25) the Hoare annotation is: true [2021-02-21 20:39:07,079 INFO L192 CegarLoopUtils]: At program point L24-5(line 24) the Hoare annotation is: true [2021-02-21 20:39:07,079 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-21 20:39:07,079 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 20:39:07,079 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 20:39:07,079 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-21 20:39:07,079 INFO L192 CegarLoopUtils]: At program point L35-2(line 35) the Hoare annotation is: true [2021-02-21 20:39:07,080 INFO L185 CegarLoopUtils]: At program point L37-4(line 37) the Hoare annotation is: (and (<= 1 |main_#t~ret17|) (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2021-02-21 20:39:07,080 INFO L192 CegarLoopUtils]: At program point L35-3(line 35) the Hoare annotation is: true [2021-02-21 20:39:07,080 INFO L192 CegarLoopUtils]: At program point L35-4(line 35) the Hoare annotation is: true [2021-02-21 20:39:07,080 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 32 46) the Hoare annotation is: true [2021-02-21 20:39:07,080 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 32 46) the Hoare annotation is: true [2021-02-21 20:39:07,080 INFO L185 CegarLoopUtils]: At program point L44(line 44) the Hoare annotation is: false [2021-02-21 20:39:07,081 INFO L185 CegarLoopUtils]: At program point L38(lines 33 46) the Hoare annotation is: false [2021-02-21 20:39:07,081 INFO L192 CegarLoopUtils]: At program point L36(lines 36 40) the Hoare annotation is: true [2021-02-21 20:39:07,081 INFO L192 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: true [2021-02-21 20:39:07,081 INFO L192 CegarLoopUtils]: At program point L36-2(lines 36 40) the Hoare annotation is: true [2021-02-21 20:39:07,081 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) the Hoare annotation is: false [2021-02-21 20:39:07,081 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 32 46) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2021-02-21 20:39:07,082 INFO L185 CegarLoopUtils]: At program point L45(line 45) the Hoare annotation is: false [2021-02-21 20:39:07,082 INFO L185 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: (and (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2021-02-21 20:39:07,082 INFO L185 CegarLoopUtils]: At program point L37-1(line 37) the Hoare annotation is: (and (<= 1 |main_#t~ret17|) (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2021-02-21 20:39:07,082 INFO L192 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: true [2021-02-21 20:39:07,082 INFO L185 CegarLoopUtils]: At program point L37-2(lines 37 39) the Hoare annotation is: (and (<= 1 |main_#t~ret17|) (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2021-02-21 20:39:07,082 INFO L192 CegarLoopUtils]: At program point L35-1(line 35) the Hoare annotation is: true [2021-02-21 20:39:07,083 INFO L185 CegarLoopUtils]: At program point L37-3(line 37) the Hoare annotation is: false [2021-02-21 20:39:07,083 INFO L192 CegarLoopUtils]: At program point checkENTRY(lines 27 30) the Hoare annotation is: true [2021-02-21 20:39:07,083 INFO L185 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: (let ((.cse0 (= check_~s1.base check_~s2.base))) (and (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or (not (= |check_#in~s1.base| |check_#in~s2.base|)) .cse0) (or (= check_~s1.offset check_~s2.offset) (not (= |check_#in~s1.offset| |check_#in~s2.offset|)) (not .cse0)))) [2021-02-21 20:39:07,083 INFO L185 CegarLoopUtils]: At program point L29-1(line 29) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse2 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse1 (= check_~s1.base check_~s2.base))) (and (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse1) (or .cse0 (= |check_#t~mem13| (select (select |#memory_int| check_~s2.base) check_~s2.offset)) .cse2) (or (= check_~s1.offset check_~s2.offset) .cse2 (not .cse1)))) [2021-02-21 20:39:07,084 INFO L185 CegarLoopUtils]: At program point L27(lines 27 30) the Hoare annotation is: (and (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|)) [2021-02-21 20:39:07,084 INFO L185 CegarLoopUtils]: At program point L29-2(line 29) the Hoare annotation is: (let ((.cse1 (= check_~s1.base check_~s2.base)) (.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse2 (not (= |check_#in~s1.offset| |check_#in~s2.offset|)))) (and (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse1) (or .cse0 (= |check_#t~mem13| (select (select |#memory_int| check_~s2.base) check_~s2.offset)) .cse2) (or (= check_~s1.offset check_~s2.offset) .cse2 (not .cse1)) (or .cse0 .cse2 (= |check_#t~mem14| |check_#t~mem13|)))) [2021-02-21 20:39:07,084 INFO L185 CegarLoopUtils]: At program point L29-3(line 29) the Hoare annotation is: (let ((.cse1 (= check_~s1.base check_~s2.base)) (.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse2 (not (= |check_#in~s1.offset| |check_#in~s2.offset|)))) (and (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse1) (or .cse0 (= |check_#t~mem13| (select (select |#memory_int| check_~s2.base) check_~s2.offset)) .cse2) (or .cse0 .cse2 (<= 1 |check_#res|)) (or (= check_~s1.offset check_~s2.offset) .cse2 (not .cse1)) (or .cse0 .cse2 (= |check_#t~mem14| |check_#t~mem13|)))) [2021-02-21 20:39:07,084 INFO L185 CegarLoopUtils]: At program point L29-4(line 29) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse2 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse1 (= check_~s1.base check_~s2.base))) (and (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse1) (or .cse0 (= |check_#t~mem13| (select (select |#memory_int| check_~s2.base) check_~s2.offset)) .cse2) (or .cse0 .cse2 (<= 1 |check_#res|)) (or (= check_~s1.offset check_~s2.offset) .cse2 (not .cse1)))) [2021-02-21 20:39:07,085 INFO L185 CegarLoopUtils]: At program point checkFINAL(lines 27 30) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse2 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse1 (= check_~s1.base check_~s2.base))) (and (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse1) (or .cse0 .cse2 (<= 1 |check_#res|)) (or (= check_~s1.offset check_~s2.offset) .cse2 (not .cse1)))) [2021-02-21 20:39:07,085 INFO L185 CegarLoopUtils]: At program point checkEXIT(lines 27 30) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse2 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse1 (= check_~s1.base check_~s2.base))) (and (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse1) (or .cse0 .cse2 (<= 1 |check_#res|)) (or (= check_~s1.offset check_~s2.offset) .cse2 (not .cse1)))) [2021-02-21 20:39:07,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 08:39:07 BoogieIcfgContainer [2021-02-21 20:39:07,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 20:39:07,107 INFO L168 Benchmark]: Toolchain (without parser) took 5917.87 ms. Allocated memory was 160.4 MB in the beginning and 231.7 MB in the end (delta: 71.3 MB). Free memory was 136.0 MB in the beginning and 149.7 MB in the end (delta: -13.7 MB). Peak memory consumption was 104.4 MB. Max. memory is 8.0 GB. [2021-02-21 20:39:07,108 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 160.4 MB. Free memory is still 134.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 20:39:07,109 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.30 ms. Allocated memory is still 160.4 MB. Free memory was 134.9 MB in the beginning and 125.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-21 20:39:07,110 INFO L168 Benchmark]: Boogie Preprocessor took 42.25 ms. Allocated memory is still 160.4 MB. Free memory was 125.1 MB in the beginning and 123.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 20:39:07,110 INFO L168 Benchmark]: RCFGBuilder took 498.25 ms. Allocated memory is still 160.4 MB. Free memory was 123.6 MB in the beginning and 135.8 MB in the end (delta: -12.2 MB). Peak memory consumption was 16.6 MB. Max. memory is 8.0 GB. [2021-02-21 20:39:07,111 INFO L168 Benchmark]: TraceAbstraction took 4987.53 ms. Allocated memory was 160.4 MB in the beginning and 231.7 MB in the end (delta: 71.3 MB). Free memory was 135.2 MB in the beginning and 149.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 103.5 MB. Max. memory is 8.0 GB. [2021-02-21 20:39:07,115 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 160.4 MB. Free memory is still 134.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 368.30 ms. Allocated memory is still 160.4 MB. Free memory was 134.9 MB in the beginning and 125.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 42.25 ms. Allocated memory is still 160.4 MB. Free memory was 125.1 MB in the beginning and 123.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 498.25 ms. Allocated memory is still 160.4 MB. Free memory was 123.6 MB in the beginning and 135.8 MB in the end (delta: -12.2 MB). Peak memory consumption was 16.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4987.53 ms. Allocated memory was 160.4 MB in the beginning and 231.7 MB in the end (delta: 71.3 MB). Free memory was 135.2 MB in the beginning and 149.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 103.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 13]: Procedure Contract for init Derived contract for procedure init: 1 - ProcedureContractResult [Line: 22]: Procedure Contract for get_dummy Derived contract for procedure get_dummy: 1 - ProcedureContractResult [Line: 32]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 27]: Procedure Contract for check Derived contract for procedure check: (((s1 == s1 && s1 == s1) && (!(s1 == s2) || s1 == s2)) && ((!(s1 == s2) || !(s1 == s2)) || 1 <= \result)) && ((s1 == s2 || !(s1 == s2)) || !(s1 == s2)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 1, TraceHistogramMax: 2, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 139 SDslu, 85 SDs, 0 SdLazy, 803 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred 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, 71 LocationsWithAnnotation, 96 PreInvPairs, 137 NumberOfFragments, 476 HoareAnnotationTreeSize, 96 FomulaSimplifications, 2003 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 71 FomulaSimplificationsInter, 2019 FormulaSimplificationTreeSizeReductionInter, 0.9s 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...