/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/test_address.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:58:06,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:58:06,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:58:06,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 01:58:06,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:58:06,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:58:06,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:58:06,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:58:06,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:58:06,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:58:06,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:58:06,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:58:06,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:58:06,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:58:06,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:58:06,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:58:06,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 01:58:06,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:58:06,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:58:06,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:58:06,161 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:58:06,183 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:58:06,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:58:06,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:58:06,186 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:58:06,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:58:06,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:58:06,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:58:06,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:58:06,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:58:06,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:58:06,187 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:58:06,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:58:06,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:58:06,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:58:06,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:58:06,188 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:58:06,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:58:06,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:58:06,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:58:06,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:58:06,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:58:06,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:58:06,190 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:58:06,190 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:58:06,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:58:06,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:58:06,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:58:06,681 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:58:06,684 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:58:06,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_address.c [2021-02-22 01:58:06,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/401795df5/cd57a48426c34c5fa55b15e71ab3e4c3/FLAGc15bd12b5 [2021-02-22 01:58:07,427 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:58:07,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_address.c [2021-02-22 01:58:07,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/401795df5/cd57a48426c34c5fa55b15e71ab3e4c3/FLAGc15bd12b5 [2021-02-22 01:58:07,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/401795df5/cd57a48426c34c5fa55b15e71ab3e4c3 [2021-02-22 01:58:07,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:58:07,799 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:58:07,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:58:07,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:58:07,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:58:07,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:58:07" (1/1) ... [2021-02-22 01:58:07,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4773433d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:58:07, skipping insertion in model container [2021-02-22 01:58:07,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:58:07" (1/1) ... [2021-02-22 01:58:07,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:58:07,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:58:07,993 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/test_address.c[293,306] [2021-02-22 01:58:08,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:58:08,023 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:58:08,040 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/test_address.c[293,306] [2021-02-22 01:58:08,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:58:08,062 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:58:08,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:58:08 WrapperNode [2021-02-22 01:58:08,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:58:08,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:58:08,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:58:08,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:58:08,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:58:08" (1/1) ... [2021-02-22 01:58:08,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:58:08" (1/1) ... [2021-02-22 01:58:08,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:58:08" (1/1) ... [2021-02-22 01:58:08,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:58:08" (1/1) ... [2021-02-22 01:58:08,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:58:08" (1/1) ... [2021-02-22 01:58:08,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:58:08" (1/1) ... [2021-02-22 01:58:08,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:58:08" (1/1) ... [2021-02-22 01:58:08,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:58:08,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:58:08,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:58:08,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:58:08,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:58:08" (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 [2021-02-22 01:58:08,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:58:08,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:58:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:58:08,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-22 01:58:08,239 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-02-22 01:58:08,239 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_fail_path [2021-02-22 01:58:08,239 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:58:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:58:08,240 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:58:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:58:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:58:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-22 01:58:08,241 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-02-22 01:58:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure rr_fail_path [2021-02-22 01:58:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:58:08,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:58:08,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:58:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:58:08,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:58:08,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:58:08,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:58:08,676 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:58:08,677 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 01:58:08,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:58:08 BoogieIcfgContainer [2021-02-22 01:58:08,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:58:08,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:58:08,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:58:08,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:58:08,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:58:07" (1/3) ... [2021-02-22 01:58:08,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6034450c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:58:08, skipping insertion in model container [2021-02-22 01:58:08,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:58:08" (2/3) ... [2021-02-22 01:58:08,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6034450c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:58:08, skipping insertion in model container [2021-02-22 01:58:08,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:58:08" (3/3) ... [2021-02-22 01:58:08,691 INFO L111 eAbstractionObserver]: Analyzing ICFG test_address.c [2021-02-22 01:58:08,699 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:58:08,705 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:58:08,729 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:58:08,756 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:58:08,757 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:58:08,757 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:58:08,757 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:58:08,757 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:58:08,757 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:58:08,758 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:58:08,758 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:58:08,782 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2021-02-22 01:58:08,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-02-22 01:58:08,803 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:58:08,804 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] [2021-02-22 01:58:08,805 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:58:08,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:58:08,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1001076438, now seen corresponding path program 1 times [2021-02-22 01:58:08,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:58:08,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530701578] [2021-02-22 01:58:08,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:58:08,931 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:58:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:58:09,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:58:09,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:58:09,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:58:09,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:58:09,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:58:09,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:58:09,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:58:09,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:58:09,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:58:09,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:58:09,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:58:09,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:58:09,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:58:09,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:58:09,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:58:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:58:09,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:58:09,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:58:09,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:58:09,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530701578] [2021-02-22 01:58:09,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:58:09,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 01:58:09,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503590849] [2021-02-22 01:58:09,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 01:58:09,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:58:09,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 01:58:09,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-22 01:58:09,304 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 8 states. [2021-02-22 01:58:09,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:58:09,639 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2021-02-22 01:58:09,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-22 01:58:09,641 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2021-02-22 01:58:09,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:58:09,648 INFO L225 Difference]: With dead ends: 44 [2021-02-22 01:58:09,648 INFO L226 Difference]: Without dead ends: 0 [2021-02-22 01:58:09,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-02-22 01:58:09,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-22 01:58:09,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-22 01:58:09,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-22 01:58:09,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-22 01:58:09,683 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-02-22 01:58:09,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:58:09,683 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-22 01:58:09,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 01:58:09,684 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-22 01:58:09,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-22 01:58:09,684 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:58:09,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-22 01:58:10,170 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-22 01:58:10,170 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-22 01:58:10,170 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-22 01:58:10,171 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-22 01:58:10,171 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-22 01:58:10,171 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:58:10,171 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-22 01:58:10,172 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-22 01:58:10,173 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-22 01:58:10,174 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)|) (= |#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|)) [2021-02-22 01:58:10,174 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-22 01:58:10,174 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-22 01:58:10,175 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:58:10,175 INFO L185 CegarLoopUtils]: At program point rr_fail_pathFINAL(lines 18 21) the Hoare annotation is: (or (not (= rr_fail_path_~pi.base 0)) (= |rr_fail_path_#in~pi.base| 0)) [2021-02-22 01:58:10,176 INFO L192 CegarLoopUtils]: At program point rr_fail_pathENTRY(lines 18 21) the Hoare annotation is: true [2021-02-22 01:58:10,176 INFO L185 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: (or (not (= rr_fail_path_~pi.base 0)) (= |rr_fail_path_#in~pi.base| 0)) [2021-02-22 01:58:10,177 INFO L185 CegarLoopUtils]: At program point rr_fail_pathEXIT(lines 18 21) the Hoare annotation is: (or (not (= rr_fail_path_~pi.base 0)) (= |rr_fail_path_#in~pi.base| 0)) [2021-02-22 01:58:10,178 INFO L192 CegarLoopUtils]: At program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) the Hoare annotation is: true [2021-02-22 01:58:10,178 INFO L192 CegarLoopUtils]: At program point __blast_assertEXIT(lines 5 8) the Hoare annotation is: true [2021-02-22 01:58:10,178 INFO L192 CegarLoopUtils]: At program point L7(line 7) the Hoare annotation is: true [2021-02-22 01:58:10,179 INFO L192 CegarLoopUtils]: At program point __blast_assertFINAL(lines 5 8) the Hoare annotation is: true [2021-02-22 01:58:10,179 INFO L192 CegarLoopUtils]: At program point __blast_assertENTRY(lines 5 8) the Hoare annotation is: true [2021-02-22 01:58:10,179 INFO L192 CegarLoopUtils]: At program point list_addENTRY(lines 14 16) the Hoare annotation is: true [2021-02-22 01:58:10,180 INFO L185 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: (or (= |list_add_#in~new.base| 0) (not (= list_add_~new.base 0))) [2021-02-22 01:58:10,180 INFO L185 CegarLoopUtils]: At program point L15-2(line 15) the Hoare annotation is: (= |list_add_#in~new.base| 0) [2021-02-22 01:58:10,181 INFO L185 CegarLoopUtils]: At program point L15-3(lines 14 16) the Hoare annotation is: (or (= |list_add_#in~new.base| 0) (not (= list_add_~new.base 0))) [2021-02-22 01:58:10,182 INFO L185 CegarLoopUtils]: At program point list_addEXIT(lines 14 16) the Hoare annotation is: (or (= |list_add_#in~new.base| 0) (not (= list_add_~new.base 0))) [2021-02-22 01:58:10,182 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:58:10,182 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:58:10,182 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-22 01:58:10,183 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-22 01:58:10,183 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 23 26) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-22 01:58:10,183 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 23 26) the Hoare annotation is: true [2021-02-22 01:58:10,184 INFO L185 CegarLoopUtils]: At program point L25(line 25) the Hoare annotation is: (not (= |main_~#pi~0.base| 0)) [2021-02-22 01:58:10,184 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 23 26) the Hoare annotation is: true [2021-02-22 01:58:10,184 INFO L185 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: (not (= |main_~#pi~0.base| 0)) [2021-02-22 01:58:10,185 INFO L185 CegarLoopUtils]: At program point L24-1(line 24) the Hoare annotation is: (not (= |main_~#pi~0.base| 0)) [2021-02-22 01:58:10,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:58:10 BoogieIcfgContainer [2021-02-22 01:58:10,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:58:10,221 INFO L168 Benchmark]: Toolchain (without parser) took 2430.06 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 73.5 MB in the end (delta: 53.7 MB). Peak memory consumption was 53.1 MB. Max. memory is 8.0 GB. [2021-02-22 01:58:10,225 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 132.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:58:10,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.22 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 116.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-22 01:58:10,233 INFO L168 Benchmark]: Boogie Preprocessor took 38.61 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 115.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:58:10,234 INFO L168 Benchmark]: RCFGBuilder took 575.22 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 101.2 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-22 01:58:10,235 INFO L168 Benchmark]: TraceAbstraction took 1534.87 ms. Allocated memory is still 151.0 MB. Free memory was 100.7 MB in the beginning and 73.5 MB in the end (delta: 27.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 8.0 GB. [2021-02-22 01:58:10,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 132.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 263.22 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 116.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.61 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 115.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 575.22 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 101.2 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1534.87 ms. Allocated memory is still 151.0 MB. Free memory was 100.7 MB in the beginning and 73.5 MB in the end (delta: 27.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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: 18]: Procedure Contract for rr_fail_path Derived contract for procedure rr_fail_path: !(pi == 0) || pi == 0 - ProcedureContractResult [Line: 5]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for list_add Derived contract for procedure list_add: new == 0 || !(new == 0) - ProcedureContractResult [Line: 23]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 14 SDslu, 92 SDs, 0 SdLazy, 50 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 34 LocationsWithAnnotation, 34 PreInvPairs, 44 NumberOfFragments, 123 HoareAnnotationTreeSize, 34 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 34 FomulaSimplificationsInter, 310 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...