./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_7.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e471d8d3-a375-4485-92ca-ea645e00e838/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e471d8d3-a375-4485-92ca-ea645e00e838/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e471d8d3-a375-4485-92ca-ea645e00e838/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e471d8d3-a375-4485-92ca-ea645e00e838/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e471d8d3-a375-4485-92ca-ea645e00e838/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e471d8d3-a375-4485-92ca-ea645e00e838/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d2a1f90505878c0035f7701a954d17ca4375eb05 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:29:37,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:29:37,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:29:37,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:29:37,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:29:37,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:29:37,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:29:37,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:29:37,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:29:37,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:29:37,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:29:37,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:29:37,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:29:37,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:29:37,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:29:37,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:29:37,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:29:37,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:29:37,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:29:37,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:29:37,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:29:37,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:29:37,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:29:37,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:29:37,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:29:37,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:29:37,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:29:37,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:29:37,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:29:37,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:29:37,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:29:37,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:29:37,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:29:37,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:29:37,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:29:37,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:29:37,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:29:37,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:29:37,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:29:37,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:29:37,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:29:37,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e471d8d3-a375-4485-92ca-ea645e00e838/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-12-01 16:29:37,369 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:29:37,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:29:37,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:29:37,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:29:37,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:29:37,374 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:29:37,374 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:29:37,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:29:37,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:29:37,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:29:37,376 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 16:29:37,377 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 16:29:37,377 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 16:29:37,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:29:37,378 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:29:37,378 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:29:37,378 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:29:37,379 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:29:37,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:29:37,381 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:29:37,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:29:37,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:29:37,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:29:37,389 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:29:37,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:29:37,389 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_e471d8d3-a375-4485-92ca-ea645e00e838/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e471d8d3-a375-4485-92ca-ea645e00e838/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2a1f90505878c0035f7701a954d17ca4375eb05 [2020-12-01 16:29:37,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:29:37,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:29:37,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:29:37,734 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:29:37,735 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:29:37,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e471d8d3-a375-4485-92ca-ea645e00e838/bin/ukojak/../../sv-benchmarks/c/locks/test_locks_7.c [2020-12-01 16:29:37,836 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e471d8d3-a375-4485-92ca-ea645e00e838/bin/ukojak/data/8a15e73fc/f069f6afd9ec400d8cb432880a3725fa/FLAG36b109922 [2020-12-01 16:29:38,419 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:29:38,421 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e471d8d3-a375-4485-92ca-ea645e00e838/sv-benchmarks/c/locks/test_locks_7.c [2020-12-01 16:29:38,435 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e471d8d3-a375-4485-92ca-ea645e00e838/bin/ukojak/data/8a15e73fc/f069f6afd9ec400d8cb432880a3725fa/FLAG36b109922 [2020-12-01 16:29:38,746 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e471d8d3-a375-4485-92ca-ea645e00e838/bin/ukojak/data/8a15e73fc/f069f6afd9ec400d8cb432880a3725fa [2020-12-01 16:29:38,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:29:38,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:29:38,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:29:38,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:29:38,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:29:38,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:29:38" (1/1) ... [2020-12-01 16:29:38,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc98e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:38, skipping insertion in model container [2020-12-01 16:29:38,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:29:38" (1/1) ... [2020-12-01 16:29:38,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:29:38,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:29:39,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:29:39,049 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:29:39,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:29:39,128 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:29:39,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:39 WrapperNode [2020-12-01 16:29:39,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:29:39,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:29:39,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:29:39,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:29:39,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:39" (1/1) ... [2020-12-01 16:29:39,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:39" (1/1) ... [2020-12-01 16:29:39,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:29:39,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:29:39,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:29:39,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:29:39,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:39" (1/1) ... [2020-12-01 16:29:39,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:39" (1/1) ... [2020-12-01 16:29:39,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:39" (1/1) ... [2020-12-01 16:29:39,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:39" (1/1) ... [2020-12-01 16:29:39,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:39" (1/1) ... [2020-12-01 16:29:39,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:39" (1/1) ... [2020-12-01 16:29:39,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:39" (1/1) ... [2020-12-01 16:29:39,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:29:39,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:29:39,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:29:39,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:29:39,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e471d8d3-a375-4485-92ca-ea645e00e838/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 [2020-12-01 16:29:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:29:39,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:29:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:29:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:29:39,924 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:29:39,925 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-01 16:29:39,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:29:39 BoogieIcfgContainer [2020-12-01 16:29:39,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:29:39,929 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:29:39,930 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:29:39,942 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:29:39,943 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:29:39" (1/1) ... [2020-12-01 16:29:39,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:29:39,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:39,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 23 states and 38 transitions. [2020-12-01 16:29:39,994 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2020-12-01 16:29:39,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:29:39,998 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:40,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:40,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:40,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2020-12-01 16:29:40,225 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2020-12-01 16:29:40,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:29:40,226 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:40,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:40,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:40,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 27 states and 42 transitions. [2020-12-01 16:29:40,331 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2020-12-01 16:29:40,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:29:40,331 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:40,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:40,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:40,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 27 states and 41 transitions. [2020-12-01 16:29:40,490 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 41 transitions. [2020-12-01 16:29:40,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:29:40,490 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:40,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:40,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:40,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 29 states and 43 transitions. [2020-12-01 16:29:40,706 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-12-01 16:29:40,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:29:40,706 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:40,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:41,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:41,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 32 states and 48 transitions. [2020-12-01 16:29:41,119 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2020-12-01 16:29:41,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:29:41,119 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:41,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:41,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:41,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2020-12-01 16:29:41,304 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2020-12-01 16:29:41,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:29:41,306 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:41,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:41,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:41,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 31 states and 45 transitions. [2020-12-01 16:29:41,492 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-12-01 16:29:41,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:29:41,493 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:41,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:42,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:42,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 35 states and 53 transitions. [2020-12-01 16:29:42,311 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2020-12-01 16:29:42,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:29:42,313 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:42,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:42,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:42,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 47 transitions. [2020-12-01 16:29:42,561 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 47 transitions. [2020-12-01 16:29:42,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:29:42,563 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:42,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 47 transitions. [2020-12-01 16:29:42,773 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2020-12-01 16:29:42,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:29:42,774 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:42,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:43,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:43,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 33 states and 47 transitions. [2020-12-01 16:29:43,001 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 47 transitions. [2020-12-01 16:29:43,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:29:43,002 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:43,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:44,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:44,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 38 states and 58 transitions. [2020-12-01 16:29:44,143 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 58 transitions. [2020-12-01 16:29:44,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:29:44,144 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:44,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:44,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:44,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 49 transitions. [2020-12-01 16:29:44,383 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 49 transitions. [2020-12-01 16:29:44,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:29:44,383 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:44,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:44,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:44,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 33 states and 49 transitions. [2020-12-01 16:29:44,611 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2020-12-01 16:29:44,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:29:44,611 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:44,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:44,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 34 states and 49 transitions. [2020-12-01 16:29:44,867 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2020-12-01 16:29:44,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:29:44,868 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:44,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:46,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:46,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 40 states and 63 transitions. [2020-12-01 16:29:46,328 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 63 transitions. [2020-12-01 16:29:46,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:29:46,330 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:46,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:46,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:46,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 41 states and 63 transitions. [2020-12-01 16:29:46,589 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 63 transitions. [2020-12-01 16:29:46,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:29:46,590 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:46,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:46,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:46,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 33 states and 51 transitions. [2020-12-01 16:29:46,916 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-12-01 16:29:46,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:29:46,918 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:46,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:47,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:47,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 34 states and 51 transitions. [2020-12-01 16:29:47,217 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 51 transitions. [2020-12-01 16:29:47,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:29:47,217 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:47,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:47,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:47,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 35 states and 51 transitions. [2020-12-01 16:29:47,533 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 51 transitions. [2020-12-01 16:29:47,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:29:47,534 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:47,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:49,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:49,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 42 states and 68 transitions. [2020-12-01 16:29:49,979 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 68 transitions. [2020-12-01 16:29:49,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:29:49,980 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:49,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:50,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:50,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 43 states and 68 transitions. [2020-12-01 16:29:50,221 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 68 transitions. [2020-12-01 16:29:50,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:29:50,221 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:50,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:50,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:50,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 44 states and 68 transitions. [2020-12-01 16:29:50,497 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 68 transitions. [2020-12-01 16:29:50,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:29:50,498 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:50,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:50,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:50,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 34 states and 53 transitions. [2020-12-01 16:29:50,900 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 53 transitions. [2020-12-01 16:29:50,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:29:50,903 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:50,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:51,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:51,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 35 states and 53 transitions. [2020-12-01 16:29:51,269 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2020-12-01 16:29:51,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:29:51,270 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:51,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:51,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:51,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2020-12-01 16:29:51,629 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2020-12-01 16:29:51,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:29:51,629 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:51,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:51,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:51,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 37 states and 53 transitions. [2020-12-01 16:29:51,904 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 53 transitions. [2020-12-01 16:29:51,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:29:51,904 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:51,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:52,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:52,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2020-12-01 16:29:52,224 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2020-12-01 16:29:52,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:29:52,225 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:52,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:52,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:52,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2020-12-01 16:29:52,641 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2020-12-01 16:29:52,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:29:52,642 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:52,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:53,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:53,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 25 states and 34 transitions. [2020-12-01 16:29:53,085 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2020-12-01 16:29:53,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 16:29:53,086 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:53,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:29:55,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:55,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 32 states and 53 transitions. [2020-12-01 16:29:55,508 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 53 transitions. [2020-12-01 16:29:55,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:29:55,509 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:29:55,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:55,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 33 states and 53 transitions. [2020-12-01 16:29:55,896 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 53 transitions. [2020-12-01 16:29:55,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:29:55,897 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:55,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:29:56,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:56,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 34 states and 53 transitions. [2020-12-01 16:29:56,328 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 53 transitions. [2020-12-01 16:29:56,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:29:56,328 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:56,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:29:56,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:56,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 35 states and 53 transitions. [2020-12-01 16:29:56,664 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2020-12-01 16:29:56,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:29:56,664 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:56,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:29:56,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:56,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2020-12-01 16:29:56,984 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2020-12-01 16:29:56,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:29:56,984 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:56,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:29:57,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:57,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 37 states and 53 transitions. [2020-12-01 16:29:57,347 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 53 transitions. [2020-12-01 16:29:57,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:29:57,347 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:57,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:29:57,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:57,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2020-12-01 16:29:57,710 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2020-12-01 16:29:57,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:29:57,710 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:57,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:29:58,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:58,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2020-12-01 16:29:58,240 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2020-12-01 16:29:58,240 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:29:58,241 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 39 iterations. [2020-12-01 16:29:58,249 INFO L765 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2020-12-01 16:29:58,483 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 16:29:58,488 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:29:58,496 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:29:58,497 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 16:29:58,497 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:29:58,498 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:29:58,499 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 16:29:58,499 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:29:58,499 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:29:58,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:29:58 ImpRootNode [2020-12-01 16:29:58,500 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:29:58,500 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:29:58,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:29:58,501 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:29:58,501 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:29:39" (3/4) ... [2020-12-01 16:29:58,504 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:29:58,514 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-12-01 16:29:58,514 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 16:29:58,515 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 16:29:58,515 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:29:58,538 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-12-01 16:29:58,538 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-12-01 16:29:58,538 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-12-01 16:29:58,588 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e471d8d3-a375-4485-92ca-ea645e00e838/bin/ukojak/witness.graphml [2020-12-01 16:29:58,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:29:58,592 INFO L168 Benchmark]: Toolchain (without parser) took 19838.22 ms. Allocated memory was 92.3 MB in the beginning and 299.9 MB in the end (delta: 207.6 MB). Free memory was 62.0 MB in the beginning and 193.3 MB in the end (delta: -131.4 MB). Peak memory consumption was 76.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:29:58,593 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 92.3 MB. Free memory is still 49.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:29:58,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.94 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 62.0 MB in the beginning and 89.8 MB in the end (delta: -27.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:29:58,594 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.01 ms. Allocated memory is still 113.2 MB. Free memory was 89.8 MB in the beginning and 88.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:29:58,595 INFO L168 Benchmark]: Boogie Preprocessor took 31.79 ms. Allocated memory is still 113.2 MB. Free memory was 88.3 MB in the beginning and 87.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:29:58,597 INFO L168 Benchmark]: RCFGBuilder took 719.55 ms. Allocated memory is still 113.2 MB. Free memory was 87.2 MB in the beginning and 58.7 MB in the end (delta: 28.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:29:58,598 INFO L168 Benchmark]: CodeCheck took 18570.95 ms. Allocated memory was 113.2 MB in the beginning and 299.9 MB in the end (delta: 186.6 MB). Free memory was 58.2 MB in the beginning and 196.5 MB in the end (delta: -138.3 MB). Peak memory consumption was 50.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:29:58,598 INFO L168 Benchmark]: Witness Printer took 88.40 ms. Allocated memory is still 299.9 MB. Free memory was 196.5 MB in the beginning and 193.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:29:58,603 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 1 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.2s, OverallIterations: 39, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 17796604 SDslu, 0 SDs, 0 SdLazy, 1210266104 SolverSat, 1719369212 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3988 GetRequests, 3734 SyntacticMatches, 0 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28320 ImplicationChecksByTransitivity, 15.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 429 NumberOfCodeBlocks, 429 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 391 ConstructedInterpolants, 0 QuantifiedInterpolants, 18029 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 38 InterpolantComputations, 38 PerfectInterpolantSequences, 16/16 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 - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant [2020-12-01 16:29:58,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:29:58,608 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 32]: Loop Invariant [2020-12-01 16:29:58,609 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:29:58,609 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 7]: Loop Invariant [2020-12-01 16:29:58,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:29:58,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 92.3 MB. Free memory is still 49.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 375.94 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 62.0 MB in the beginning and 89.8 MB in the end (delta: -27.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.01 ms. Allocated memory is still 113.2 MB. Free memory was 89.8 MB in the beginning and 88.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.79 ms. Allocated memory is still 113.2 MB. Free memory was 88.3 MB in the beginning and 87.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 719.55 ms. Allocated memory is still 113.2 MB. Free memory was 87.2 MB in the beginning and 58.7 MB in the end (delta: 28.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * CodeCheck took 18570.95 ms. Allocated memory was 113.2 MB in the beginning and 299.9 MB in the end (delta: 186.6 MB). Free memory was 58.2 MB in the beginning and 196.5 MB in the end (delta: -138.3 MB). Peak memory consumption was 50.1 MB. Max. memory is 16.1 GB. * Witness Printer took 88.40 ms. Allocated memory is still 299.9 MB. Free memory was 196.5 MB in the beginning and 193.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...