./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/alt_test.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/alt_test.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f0dc10cff0d4b9b6abcb3203593853156d0ff603 ..................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:44:54,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:44:54,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:44:54,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:44:54,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:44:54,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:44:54,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:44:54,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:44:54,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:44:54,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:44:54,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:44:54,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:44:54,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:44:54,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:44:54,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:44:54,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:44:54,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:44:54,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:44:54,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:44:54,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:44:54,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:44:54,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:44:54,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:44:54,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:44:54,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:44:54,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:44:54,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:44:54,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:44:54,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:44:54,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:44:54,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:44:54,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:44:54,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:44:54,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:44:54,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:44:54,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:44:54,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:44:54,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:44:54,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:44:54,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:44:54,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:44:54,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:44:54,835 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:44:54,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:44:54,837 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:44:54,837 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:44:54,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:44:54,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:44:54,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:44:54,839 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:44:54,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:44:54,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:44:54,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:44:54,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:44:54,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:44:54,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:44:54,848 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:44:54,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:44:54,848 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:44:54,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:44:54,849 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:44:54,849 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:44:54,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:44:54,850 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:44:54,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:44:54,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:44:54,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:44:54,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:44:54,851 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:44:54,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:44:54,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:44:54,852 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:/tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0dc10cff0d4b9b6abcb3203593853156d0ff603 [2020-11-28 04:44:55,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:44:55,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:44:55,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:44:55,203 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:44:55,209 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:44:55,210 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/bin/ukojak/../../sv-benchmarks/c/ldv-regression/alt_test.i [2020-11-28 04:44:55,274 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/bin/ukojak/data/ed1e1f787/3425770ac3394d92bf2a7070e5b4fc54/FLAG1d6a76aaa [2020-11-28 04:44:55,858 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:44:55,858 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/sv-benchmarks/c/ldv-regression/alt_test.i [2020-11-28 04:44:55,883 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/bin/ukojak/data/ed1e1f787/3425770ac3394d92bf2a7070e5b4fc54/FLAG1d6a76aaa [2020-11-28 04:44:56,124 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/bin/ukojak/data/ed1e1f787/3425770ac3394d92bf2a7070e5b4fc54 [2020-11-28 04:44:56,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:44:56,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:44:56,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:56,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:44:56,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:44:56,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:56" (1/1) ... [2020-11-28 04:44:56,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d5bf5b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:56, skipping insertion in model container [2020-11-28 04:44:56,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:56" (1/1) ... [2020-11-28 04:44:56,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:44:56,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:44:56,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:56,527 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:44:56,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:56,613 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:44:56,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:56 WrapperNode [2020-11-28 04:44:56,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:56,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:56,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:44:56,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:44:56,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:56" (1/1) ... [2020-11-28 04:44:56,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:56" (1/1) ... [2020-11-28 04:44:56,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:56,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:44:56,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:44:56,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:44:56,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:56" (1/1) ... [2020-11-28 04:44:56,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:56" (1/1) ... [2020-11-28 04:44:56,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:56" (1/1) ... [2020-11-28 04:44:56,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:56" (1/1) ... [2020-11-28 04:44:56,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:56" (1/1) ... [2020-11-28 04:44:56,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:56" (1/1) ... [2020-11-28 04:44:56,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:56" (1/1) ... [2020-11-28 04:44:56,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:44:56,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:44:56,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:44:56,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:44:56,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2020-11-28 04:44:56,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:44:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:44:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:44:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure l_free [2020-11-28 04:44:56,776 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free [2020-11-28 04:44:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:44:56,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:44:56,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:44:57,203 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:44:57,203 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 04:44:57,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:57 BoogieIcfgContainer [2020-11-28 04:44:57,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:44:57,206 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:44:57,206 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:44:57,215 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:44:57,216 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:57" (1/1) ... [2020-11-28 04:44:57,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:44:57,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:57,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-11-28 04:44:57,262 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-28 04:44:57,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:44:57,266 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:57,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:57,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:57,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 17 transitions. [2020-11-28 04:44:57,502 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-11-28 04:44:57,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:44:57,504 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:57,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:57,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:57,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 21 transitions. [2020-11-28 04:44:57,926 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2020-11-28 04:44:57,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:44:57,926 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:57,977 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:58,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:58,098 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:58,121 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:58,142 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2020-11-28 04:44:58,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:44:58 ImpRootNode [2020-11-28 04:44:58,203 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:44:58,204 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:44:58,204 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:44:58,204 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:44:58,205 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:57" (3/4) ... [2020-11-28 04:44:58,208 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:44:58,285 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1f8db778-bfd2-4357-82f4-782d066f524c/bin/ukojak/witness.graphml [2020-11-28 04:44:58,288 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:44:58,289 INFO L168 Benchmark]: Toolchain (without parser) took 2158.49 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 64.7 MB in the beginning and 70.0 MB in the end (delta: -5.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:58,290 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 73.4 MB. Free memory is still 48.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:58,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.63 ms. Allocated memory is still 88.1 MB. Free memory was 64.5 MB in the beginning and 49.2 MB in the end (delta: 15.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:58,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.87 ms. Allocated memory is still 88.1 MB. Free memory was 49.1 MB in the beginning and 47.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:58,292 INFO L168 Benchmark]: Boogie Preprocessor took 21.82 ms. Allocated memory is still 88.1 MB. Free memory was 47.4 MB in the beginning and 46.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:58,293 INFO L168 Benchmark]: RCFGBuilder took 528.27 ms. Allocated memory is still 88.1 MB. Free memory was 46.3 MB in the beginning and 45.6 MB in the end (delta: 717.3 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:58,297 INFO L168 Benchmark]: CodeCheck took 997.87 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 45.6 MB in the beginning and 72.1 MB in the end (delta: -26.5 MB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:58,298 INFO L168 Benchmark]: Witness Printer took 83.83 ms. Allocated memory is still 117.4 MB. Free memory was 72.1 MB in the beginning and 70.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:58,301 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 16 SDslu, 20 SDs, 0 SdLazy, 46 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L518] int globalState = 0; [L529] void *retVal = malloc(size); [L530] COND TRUE retVal != ((void *)0) [L531] globalState=1 [L532] return retVal; [L523] int *a = (int*) l_malloc(sizeof(int)); [L524] CALL l_free(a) VAL [\old(globalState)=1, globalState=1] [L535] COND TRUE ptr!=((void *)0) VAL [\old(globalState)=1, globalState=1] [L535] (globalState == 1) ? (0) : __blast_assert () VAL [\old(globalState)=1, globalState=1] [L536] globalState = 0 [L524] RET l_free(a) VAL [globalState=0] [L525] CALL l_free(a) VAL [\old(globalState)=0, globalState=0] [L535] COND TRUE ptr!=((void *)0) VAL [\old(globalState)=0, globalState=0] [L535] (globalState == 1) ? (0) : __blast_assert () VAL [\old(globalState)=0, globalState=0] [L3] __assert_fail("0", "alt_test.i", 3, "reach_error") VAL [\old(globalState)=0, globalState=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 73.4 MB. Free memory is still 48.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 479.63 ms. Allocated memory is still 88.1 MB. Free memory was 64.5 MB in the beginning and 49.2 MB in the end (delta: 15.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.87 ms. Allocated memory is still 88.1 MB. Free memory was 49.1 MB in the beginning and 47.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.82 ms. Allocated memory is still 88.1 MB. Free memory was 47.4 MB in the beginning and 46.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 528.27 ms. Allocated memory is still 88.1 MB. Free memory was 46.3 MB in the beginning and 45.6 MB in the end (delta: 717.3 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * CodeCheck took 997.87 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 45.6 MB in the beginning and 72.1 MB in the end (delta: -26.5 MB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB. * Witness Printer took 83.83 ms. Allocated memory is still 117.4 MB. Free memory was 72.1 MB in the beginning and 70.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...