/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/oomInt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 16:10:29,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 16:10:29,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 16:10:29,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 16:10:29,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 16:10:29,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 16:10:29,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 16:10:29,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 16:10:29,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 16:10:29,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 16:10:29,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 16:10:29,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 16:10:29,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 16:10:29,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 16:10:29,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 16:10:29,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 16:10:29,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 16:10:29,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 16:10:29,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 16:10:29,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 16:10:29,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 16:10:29,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 16:10:29,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 16:10:29,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 16:10:29,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 16:10:29,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 16:10:29,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 16:10:29,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 16:10:29,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-21 16:10:29,806 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 16:10:29,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 16:10:29,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 16:10:29,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 16:10:29,812 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 16:10:29,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 16:10:29,812 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 16:10:29,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 16:10:29,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 16:10:29,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 16:10:29,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 16:10:29,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 16:10:29,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 16:10:29,816 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 16:10:29,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 16:10:29,816 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 16:10:29,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 16:10:29,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 16:10:29,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 16:10:29,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 16:10:29,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:10:29,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 16:10:29,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 16:10:29,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 16:10:29,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 16:10:29,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 16:10:29,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 16:10:29,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 16:10:29,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 16:10:30,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 16:10:30,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 16:10:30,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 16:10:30,378 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 16:10:30,378 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 16:10:30,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/oomInt.i [2021-02-21 16:10:30,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e97c09331/8862556cebff4180aa085f6b5aa41097/FLAG9b278d50c [2021-02-21 16:10:31,106 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 16:10:31,107 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/oomInt.i [2021-02-21 16:10:31,116 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e97c09331/8862556cebff4180aa085f6b5aa41097/FLAG9b278d50c [2021-02-21 16:10:31,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e97c09331/8862556cebff4180aa085f6b5aa41097 [2021-02-21 16:10:31,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 16:10:31,499 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 16:10:31,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 16:10:31,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 16:10:31,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 16:10:31,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:10:31" (1/1) ... [2021-02-21 16:10:31,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ff29061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:10:31, skipping insertion in model container [2021-02-21 16:10:31,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:10:31" (1/1) ... [2021-02-21 16:10:31,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 16:10:31,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 16:10:31,781 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/oomInt.i[319,332] [2021-02-21 16:10:31,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:10:31,808 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 16:10:31,825 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/oomInt.i[319,332] [2021-02-21 16:10:31,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:10:31,849 INFO L208 MainTranslator]: Completed translation [2021-02-21 16:10:31,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:10:31 WrapperNode [2021-02-21 16:10:31,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 16:10:31,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 16:10:31,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 16:10:31,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 16:10:31,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:10:31" (1/1) ... [2021-02-21 16:10:31,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:10:31" (1/1) ... [2021-02-21 16:10:31,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:10:31" (1/1) ... [2021-02-21 16:10:31,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:10:31" (1/1) ... [2021-02-21 16:10:31,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:10:31" (1/1) ... [2021-02-21 16:10:31,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:10:31" (1/1) ... [2021-02-21 16:10:31,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:10:31" (1/1) ... [2021-02-21 16:10:31,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 16:10:31,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 16:10:31,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 16:10:31,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 16:10:31,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:10:31" (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 16:10:32,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 16:10:32,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 16:10:32,022 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 16:10:32,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 16:10:32,022 INFO L138 BoogieDeclarations]: Found implementation of procedure abs_int [2021-02-21 16:10:32,022 INFO L138 BoogieDeclarations]: Found implementation of procedure firstFunction [2021-02-21 16:10:32,023 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 16:10:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 16:10:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 16:10:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 16:10:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 16:10:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 16:10:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure abs_int [2021-02-21 16:10:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure firstFunction [2021-02-21 16:10:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 16:10:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 16:10:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 16:10:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 16:10:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 16:10:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 16:10:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 16:10:32,255 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 16:10:32,256 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-21 16:10:32,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:10:32 BoogieIcfgContainer [2021-02-21 16:10:32,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 16:10:32,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 16:10:32,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 16:10:32,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 16:10:32,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 04:10:31" (1/3) ... [2021-02-21 16:10:32,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218ba69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:10:32, skipping insertion in model container [2021-02-21 16:10:32,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:10:31" (2/3) ... [2021-02-21 16:10:32,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218ba69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:10:32, skipping insertion in model container [2021-02-21 16:10:32,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:10:32" (3/3) ... [2021-02-21 16:10:32,267 INFO L111 eAbstractionObserver]: Analyzing ICFG oomInt.i [2021-02-21 16:10:32,292 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 16:10:32,297 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 16:10:32,317 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 16:10:32,343 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 16:10:32,343 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 16:10:32,343 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 16:10:32,343 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 16:10:32,343 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 16:10:32,344 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 16:10:32,344 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 16:10:32,344 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 16:10:32,363 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2021-02-21 16:10:32,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-02-21 16:10:32,369 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:10:32,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:10:32,370 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:10:32,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:10:32,377 INFO L82 PathProgramCache]: Analyzing trace with hash 518549886, now seen corresponding path program 1 times [2021-02-21 16:10:32,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:10:32,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683200595] [2021-02-21 16:10:32,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:10:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:10:32,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:10:32,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:10:32,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:10:32,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:10:32,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:10:32,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 16:10:32,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:10:32,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:10:32,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:10:32,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:10:32,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:10:32,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:10:32,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:10:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:10:32,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:10:32,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:10:32,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 16:10:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:10:32,760 WARN L141 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-02-21 16:10:32,762 WARN L147 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size 9 [2021-02-21 16:10:32,783 WARN L141 QuantifierPusher]: treesize reduction -2, result has 125.0 percent of original size [2021-02-21 16:10:32,784 WARN L147 QuantifierPusher]: treesize reduction -2, result has 125.0 percent of original size 10 [2021-02-21 16:10:32,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:10:32,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683200595] [2021-02-21 16:10:32,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:10:32,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 16:10:32,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387586579] [2021-02-21 16:10:32,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 16:10:32,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:10:32,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 16:10:32,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-02-21 16:10:32,879 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 9 states. [2021-02-21 16:10:33,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:10:33,222 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2021-02-21 16:10:33,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 16:10:33,224 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2021-02-21 16:10:33,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:10:33,232 INFO L225 Difference]: With dead ends: 33 [2021-02-21 16:10:33,232 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 16:10:33,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-02-21 16:10:33,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 16:10:33,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 16:10:33,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 16:10:33,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 16:10:33,266 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-02-21 16:10:33,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:10:33,267 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 16:10:33,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 16:10:33,267 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 16:10:33,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 16:10:33,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 16:10:33,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 16:10:33,409 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-21 16:10:33,409 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-21 16:10:33,409 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-21 16:10:33,409 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-21 16:10:33,410 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)|) (= ~p~0 |old(~p~0)|) (= |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|)) [2021-02-21 16:10:33,410 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-21 16:10:33,410 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-21 16:10:33,410 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 16:10:33,411 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 16:10:33,411 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-21 16:10:33,411 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 35 38) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2021-02-21 16:10:33,411 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 35 38) no Hoare annotation was computed. [2021-02-21 16:10:33,411 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 35 38) no Hoare annotation was computed. [2021-02-21 16:10:33,411 INFO L189 CegarLoopUtils]: For program point abs_intEXIT(lines 18 27) no Hoare annotation was computed. [2021-02-21 16:10:33,411 INFO L189 CegarLoopUtils]: For program point L20(lines 20 26) no Hoare annotation was computed. [2021-02-21 16:10:33,412 INFO L192 CegarLoopUtils]: At program point abs_intENTRY(lines 18 27) the Hoare annotation is: true [2021-02-21 16:10:33,412 INFO L189 CegarLoopUtils]: For program point abs_intFINAL(lines 18 27) no Hoare annotation was computed. [2021-02-21 16:10:33,412 INFO L185 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: (<= 1 ~p~0) [2021-02-21 16:10:33,412 INFO L189 CegarLoopUtils]: For program point L31(line 31) no Hoare annotation was computed. [2021-02-21 16:10:33,412 INFO L185 CegarLoopUtils]: At program point firstFunctionENTRY(lines 29 33) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2021-02-21 16:10:33,412 INFO L189 CegarLoopUtils]: For program point firstFunctionFINAL(lines 29 33) no Hoare annotation was computed. [2021-02-21 16:10:33,413 INFO L189 CegarLoopUtils]: For program point firstFunctionEXIT(lines 29 33) no Hoare annotation was computed. [2021-02-21 16:10:33,413 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 8 14) the Hoare annotation is: true [2021-02-21 16:10:33,413 INFO L189 CegarLoopUtils]: For program point L12(line 12) no Hoare annotation was computed. [2021-02-21 16:10:33,413 INFO L189 CegarLoopUtils]: For program point L10(lines 10 13) no Hoare annotation was computed. [2021-02-21 16:10:33,413 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertEXIT(lines 8 14) no Hoare annotation was computed. [2021-02-21 16:10:33,413 INFO L189 CegarLoopUtils]: For program point L10-2(lines 8 14) no Hoare annotation was computed. [2021-02-21 16:10:33,414 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-02-21 16:10:33,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 04:10:33 BoogieIcfgContainer [2021-02-21 16:10:33,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 16:10:33,422 INFO L168 Benchmark]: Toolchain (without parser) took 1934.93 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 128.4 MB in the end (delta: -2.0 MB). Peak memory consumption was 78.8 MB. Max. memory is 8.0 GB. [2021-02-21 16:10:33,423 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:10:33,424 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.93 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 116.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-21 16:10:33,425 INFO L168 Benchmark]: Boogie Preprocessor took 56.01 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 114.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 16:10:33,426 INFO L168 Benchmark]: RCFGBuilder took 349.37 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 101.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-21 16:10:33,427 INFO L168 Benchmark]: TraceAbstraction took 1160.45 ms. Allocated memory is still 151.0 MB. Free memory was 101.4 MB in the beginning and 128.4 MB in the end (delta: -26.9 MB). Peak memory consumption was 53.7 MB. Max. memory is 8.0 GB. [2021-02-21 16:10:33,430 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 345.93 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 116.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 56.01 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 114.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 349.37 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 101.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1160.45 ms. Allocated memory is still 151.0 MB. Free memory was 101.4 MB in the beginning and 128.4 MB in the end (delta: -26.9 MB). Peak memory consumption was 53.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 24 SDslu, 64 SDs, 0 SdLazy, 66 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 47 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 143 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 1260 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...