./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 279a496440714e08b745bf93c9b96ddf5eea3a1a1333716a32e013acf1d533d2 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:52:31,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:52:31,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:52:31,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:52:31,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:52:31,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:52:31,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:52:31,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:52:31,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:52:31,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:52:31,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:52:31,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:52:31,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:52:31,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:52:31,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:52:31,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:52:31,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:52:31,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:52:31,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:52:31,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:52:31,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:52:31,610 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:52:31,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:52:31,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:52:31,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:52:31,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:52:31,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:52:31,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:52:31,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:52:31,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:52:31,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:52:31,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:52:31,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:52:31,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:52:31,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:52:31,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:52:31,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:52:31,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:52:31,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:52:31,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:52:31,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:52:31,637 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 08:52:31,668 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:52:31,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:52:31,669 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:52:31,669 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:52:31,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:52:31,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:52:31,672 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:52:31,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:52:31,672 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:52:31,673 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:52:31,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:52:31,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:52:31,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:52:31,674 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 08:52:31,674 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 08:52:31,674 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 08:52:31,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:52:31,675 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 08:52:31,675 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:52:31,676 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:52:31,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:52:31,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:52:31,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:52:31,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:52:31,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:52:31,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:52:31,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:52:31,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:52:31,679 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:52:31,679 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_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 279a496440714e08b745bf93c9b96ddf5eea3a1a1333716a32e013acf1d533d2 [2021-10-28 08:52:32,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:52:32,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:52:32,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:52:32,051 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:52:32,052 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:52:32,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2021-10-28 08:52:32,182 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/data/21661e863/e45e671cd1ce4670ba11aac7321c42c9/FLAGd11257b9f [2021-10-28 08:52:32,964 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:52:32,965 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2021-10-28 08:52:33,004 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/data/21661e863/e45e671cd1ce4670ba11aac7321c42c9/FLAGd11257b9f [2021-10-28 08:52:33,239 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/data/21661e863/e45e671cd1ce4670ba11aac7321c42c9 [2021-10-28 08:52:33,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:52:33,245 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 08:52:33,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:52:33,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:52:33,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:52:33,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:52:33" (1/1) ... [2021-10-28 08:52:33,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7c1733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:52:33, skipping insertion in model container [2021-10-28 08:52:33,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:52:33" (1/1) ... [2021-10-28 08:52:33,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:52:33,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:52:33,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:52:33,805 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:52:33,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:52:33,922 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:52:33,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:52:33 WrapperNode [2021-10-28 08:52:33,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:52:33,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:52:33,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:52:33,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:52:33,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:52:33" (1/1) ... [2021-10-28 08:52:33,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:52:33" (1/1) ... [2021-10-28 08:52:33,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:52:33" (1/1) ... [2021-10-28 08:52:33,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:52:33" (1/1) ... [2021-10-28 08:52:34,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:52:33" (1/1) ... [2021-10-28 08:52:34,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:52:33" (1/1) ... [2021-10-28 08:52:34,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:52:33" (1/1) ... [2021-10-28 08:52:34,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:52:34,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:52:34,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:52:34,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:52:34,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:52:33" (1/1) ... [2021-10-28 08:52:34,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:52:34,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:52:34,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:52:34,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:52:34,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 08:52:34,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:52:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 08:52:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 08:52:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 08:52:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 08:52:34,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 08:52:34,157 INFO L138 BoogieDeclarations]: Found implementation of procedure test_fun [2021-10-28 08:52:34,157 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 08:52:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 08:52:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 08:52:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 08:52:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 08:52:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 08:52:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 08:52:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 08:52:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 08:52:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 08:52:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 08:52:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 08:52:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 08:52:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 08:52:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 08:52:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 08:52:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 08:52:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 08:52:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 08:52:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 08:52:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 08:52:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 08:52:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 08:52:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 08:52:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 08:52:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 08:52:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 08:52:34,163 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 08:52:34,163 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 08:52:34,163 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 08:52:34,163 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 08:52:34,163 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 08:52:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 08:52:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 08:52:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 08:52:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 08:52:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 08:52:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 08:52:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 08:52:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 08:52:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 08:52:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 08:52:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 08:52:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 08:52:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 08:52:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 08:52:34,167 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 08:52:34,167 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 08:52:34,167 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 08:52:34,167 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 08:52:34,167 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 08:52:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 08:52:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 08:52:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 08:52:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 08:52:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 08:52:34,169 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 08:52:34,169 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 08:52:34,169 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 08:52:34,169 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 08:52:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 08:52:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 08:52:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 08:52:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 08:52:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 08:52:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 08:52:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 08:52:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 08:52:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 08:52:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 08:52:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 08:52:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 08:52:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 08:52:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 08:52:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 08:52:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 08:52:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 08:52:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 08:52:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 08:52:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 08:52:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 08:52:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 08:52:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 08:52:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 08:52:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 08:52:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 08:52:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 08:52:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 08:52:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 08:52:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 08:52:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 08:52:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 08:52:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 08:52:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 08:52:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 08:52:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 08:52:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 08:52:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 08:52:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 08:52:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 08:52:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 08:52:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 08:52:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 08:52:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 08:52:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 08:52:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 08:52:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 08:52:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 08:52:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 08:52:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure test_fun [2021-10-28 08:52:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:52:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:52:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:52:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:52:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 08:52:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 08:52:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:52:34,861 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:52:34,862 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 08:52:34,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:52:34 BoogieIcfgContainer [2021-10-28 08:52:34,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:52:34,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:52:34,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:52:34,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:52:34,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:52:33" (1/3) ... [2021-10-28 08:52:34,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164f9995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:52:34, skipping insertion in model container [2021-10-28 08:52:34,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:52:33" (2/3) ... [2021-10-28 08:52:34,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164f9995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:52:34, skipping insertion in model container [2021-10-28 08:52:34,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:52:34" (3/3) ... [2021-10-28 08:52:34,880 INFO L111 eAbstractionObserver]: Analyzing ICFG c.03-alloca-2.i [2021-10-28 08:52:34,887 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:52:34,895 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-10-28 08:52:34,982 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:52:34,993 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:52:34,993 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-10-28 08:52:35,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 29 states have (on average 2.1724137931034484) internal successors, (63), 60 states have internal predecessors, (63), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 08:52:35,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 08:52:35,032 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:52:35,033 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:52:35,034 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting test_funErr0REQUIRES_VIOLATION === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION (and 27 more)] === [2021-10-28 08:52:35,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:52:35,042 INFO L85 PathProgramCache]: Analyzing trace with hash 743499951, now seen corresponding path program 1 times [2021-10-28 08:52:35,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:52:35,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140554907] [2021-10-28 08:52:35,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:52:35,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:52:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:35,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:52:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:35,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:52:35,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:52:35,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140554907] [2021-10-28 08:52:35,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140554907] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:52:35,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:52:35,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:52:35,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138887996] [2021-10-28 08:52:35,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:52:35,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:52:35,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:52:35,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:35,518 INFO L87 Difference]: Start difference. First operand has 67 states, 29 states have (on average 2.1724137931034484) internal successors, (63), 60 states have internal predecessors, (63), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:35,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:52:35,701 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2021-10-28 08:52:35,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:52:35,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2021-10-28 08:52:35,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:52:35,714 INFO L225 Difference]: With dead ends: 62 [2021-10-28 08:52:35,714 INFO L226 Difference]: Without dead ends: 59 [2021-10-28 08:52:35,716 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:35,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-10-28 08:52:35,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-10-28 08:52:35,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 53 states have internal predecessors, (55), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:52:35,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2021-10-28 08:52:35,763 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 9 [2021-10-28 08:52:35,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:52:35,764 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2021-10-28 08:52:35,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:35,764 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2021-10-28 08:52:35,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 08:52:35,765 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:52:35,765 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:52:35,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:52:35,766 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION (and 27 more)] === [2021-10-28 08:52:35,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:52:35,767 INFO L85 PathProgramCache]: Analyzing trace with hash 743499952, now seen corresponding path program 1 times [2021-10-28 08:52:35,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:52:35,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401380424] [2021-10-28 08:52:35,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:52:35,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:52:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:35,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:52:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:35,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:52:35,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:52:35,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401380424] [2021-10-28 08:52:35,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401380424] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:52:35,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:52:35,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:52:35,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470989734] [2021-10-28 08:52:35,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:52:35,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:52:35,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:52:35,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:35,880 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:36,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:52:36,004 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2021-10-28 08:52:36,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:52:36,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2021-10-28 08:52:36,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:52:36,006 INFO L225 Difference]: With dead ends: 54 [2021-10-28 08:52:36,006 INFO L226 Difference]: Without dead ends: 54 [2021-10-28 08:52:36,007 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:36,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-28 08:52:36,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-10-28 08:52:36,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 48 states have internal predecessors, (50), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:52:36,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2021-10-28 08:52:36,015 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 9 [2021-10-28 08:52:36,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:52:36,016 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2021-10-28 08:52:36,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:36,016 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2021-10-28 08:52:36,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 08:52:36,017 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:52:36,017 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:52:36,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:52:36,018 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting test_funErr2REQUIRES_VIOLATION === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION (and 27 more)] === [2021-10-28 08:52:36,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:52:36,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1573661992, now seen corresponding path program 1 times [2021-10-28 08:52:36,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:52:36,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652656136] [2021-10-28 08:52:36,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:52:36,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:52:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:36,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:52:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:36,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:52:36,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:52:36,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652656136] [2021-10-28 08:52:36,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652656136] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:52:36,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:52:36,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:52:36,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636408882] [2021-10-28 08:52:36,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:52:36,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:52:36,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:52:36,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:36,193 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:36,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:52:36,321 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2021-10-28 08:52:36,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:52:36,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 08:52:36,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:52:36,323 INFO L225 Difference]: With dead ends: 52 [2021-10-28 08:52:36,324 INFO L226 Difference]: Without dead ends: 52 [2021-10-28 08:52:36,324 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:36,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-28 08:52:36,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-28 08:52:36,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 46 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:52:36,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2021-10-28 08:52:36,332 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 10 [2021-10-28 08:52:36,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:52:36,332 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2021-10-28 08:52:36,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:36,333 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2021-10-28 08:52:36,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 08:52:36,334 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:52:36,334 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:52:36,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:52:36,334 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting test_funErr3REQUIRES_VIOLATION === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION (and 27 more)] === [2021-10-28 08:52:36,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:52:36,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1573661993, now seen corresponding path program 1 times [2021-10-28 08:52:36,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:52:36,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626478057] [2021-10-28 08:52:36,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:52:36,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:52:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:36,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:52:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:52:36,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:52:36,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626478057] [2021-10-28 08:52:36,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626478057] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:52:36,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:52:36,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:52:36,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975705820] [2021-10-28 08:52:36,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:52:36,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:52:36,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:52:36,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:36,466 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:36,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:52:36,614 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2021-10-28 08:52:36,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:52:36,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 08:52:36,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:52:36,616 INFO L225 Difference]: With dead ends: 50 [2021-10-28 08:52:36,616 INFO L226 Difference]: Without dead ends: 50 [2021-10-28 08:52:36,617 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:36,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-28 08:52:36,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-10-28 08:52:36,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 44 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:52:36,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2021-10-28 08:52:36,631 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 10 [2021-10-28 08:52:36,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:52:36,631 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2021-10-28 08:52:36,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2021-10-28 08:52:36,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 08:52:36,634 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:52:36,634 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:52:36,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 08:52:36,635 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting test_funErr4REQUIRES_VIOLATION === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION (and 27 more)] === [2021-10-28 08:52:36,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:52:36,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1538881490, now seen corresponding path program 1 times [2021-10-28 08:52:36,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:52:36,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248412358] [2021-10-28 08:52:36,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:52:36,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:52:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:36,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:52:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:36,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:52:36,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:52:36,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248412358] [2021-10-28 08:52:36,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248412358] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:52:36,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:52:36,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:52:36,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808989040] [2021-10-28 08:52:36,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:52:36,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:52:36,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:52:36,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:36,754 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:36,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:52:36,904 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2021-10-28 08:52:36,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:52:36,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-10-28 08:52:36,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:52:36,906 INFO L225 Difference]: With dead ends: 46 [2021-10-28 08:52:36,906 INFO L226 Difference]: Without dead ends: 46 [2021-10-28 08:52:36,907 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:36,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-28 08:52:36,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-28 08:52:36,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.5) internal successors, (42), 40 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:52:36,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2021-10-28 08:52:36,913 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 11 [2021-10-28 08:52:36,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:52:36,913 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2021-10-28 08:52:36,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:36,913 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2021-10-28 08:52:36,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 08:52:36,914 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:52:36,914 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:52:36,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 08:52:36,915 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting test_funErr5REQUIRES_VIOLATION === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION (and 27 more)] === [2021-10-28 08:52:36,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:52:36,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1538881491, now seen corresponding path program 1 times [2021-10-28 08:52:36,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:52:36,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095574439] [2021-10-28 08:52:36,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:52:36,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:52:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:37,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:52:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:37,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:52:37,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:52:37,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095574439] [2021-10-28 08:52:37,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095574439] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:52:37,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:52:37,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:52:37,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486605017] [2021-10-28 08:52:37,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:52:37,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:52:37,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:52:37,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:37,039 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:37,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:52:37,130 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2021-10-28 08:52:37,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:52:37,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-10-28 08:52:37,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:52:37,132 INFO L225 Difference]: With dead ends: 42 [2021-10-28 08:52:37,133 INFO L226 Difference]: Without dead ends: 42 [2021-10-28 08:52:37,133 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:37,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-28 08:52:37,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-28 08:52:37,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 36 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:52:37,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2021-10-28 08:52:37,139 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 11 [2021-10-28 08:52:37,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:52:37,140 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2021-10-28 08:52:37,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:37,140 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2021-10-28 08:52:37,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 08:52:37,141 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:52:37,141 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:52:37,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 08:52:37,142 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting test_funErr6REQUIRES_VIOLATION === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION (and 27 more)] === [2021-10-28 08:52:37,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:52:37,142 INFO L85 PathProgramCache]: Analyzing trace with hash 460685931, now seen corresponding path program 1 times [2021-10-28 08:52:37,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:52:37,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254992893] [2021-10-28 08:52:37,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:52:37,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:52:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:37,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:52:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:37,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:52:37,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:52:37,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254992893] [2021-10-28 08:52:37,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254992893] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:52:37,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:52:37,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:52:37,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005369554] [2021-10-28 08:52:37,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:52:37,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:52:37,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:52:37,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:37,208 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:37,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:52:37,279 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2021-10-28 08:52:37,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:52:37,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-10-28 08:52:37,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:52:37,282 INFO L225 Difference]: With dead ends: 38 [2021-10-28 08:52:37,282 INFO L226 Difference]: Without dead ends: 38 [2021-10-28 08:52:37,283 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:37,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-28 08:52:37,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-28 08:52:37,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 32 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:52:37,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2021-10-28 08:52:37,300 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 12 [2021-10-28 08:52:37,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:52:37,301 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2021-10-28 08:52:37,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:37,301 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2021-10-28 08:52:37,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 08:52:37,302 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:52:37,302 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:52:37,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 08:52:37,302 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting test_funErr7REQUIRES_VIOLATION === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION (and 27 more)] === [2021-10-28 08:52:37,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:52:37,303 INFO L85 PathProgramCache]: Analyzing trace with hash 460685932, now seen corresponding path program 1 times [2021-10-28 08:52:37,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:52:37,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257493416] [2021-10-28 08:52:37,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:52:37,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:52:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:37,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:52:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:37,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:52:37,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:52:37,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257493416] [2021-10-28 08:52:37,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257493416] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:52:37,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:52:37,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:52:37,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919755632] [2021-10-28 08:52:37,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:52:37,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:52:37,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:52:37,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:37,391 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:37,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:52:37,456 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2021-10-28 08:52:37,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:52:37,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-10-28 08:52:37,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:52:37,458 INFO L225 Difference]: With dead ends: 34 [2021-10-28 08:52:37,458 INFO L226 Difference]: Without dead ends: 34 [2021-10-28 08:52:37,458 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:52:37,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-28 08:52:37,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-28 08:52:37,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:52:37,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2021-10-28 08:52:37,462 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 12 [2021-10-28 08:52:37,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:52:37,463 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2021-10-28 08:52:37,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:52:37,463 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2021-10-28 08:52:37,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-28 08:52:37,464 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:52:37,464 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:52:37,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 08:52:37,465 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION (and 27 more)] === [2021-10-28 08:52:37,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:52:37,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1533919015, now seen corresponding path program 1 times [2021-10-28 08:52:37,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:52:37,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057831720] [2021-10-28 08:52:37,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:52:37,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:52:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:37,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 08:52:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:37,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:52:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:52:37,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:52:37,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:52:37,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057831720] [2021-10-28 08:52:37,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057831720] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:52:37,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:52:37,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:52:37,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913894801] [2021-10-28 08:52:37,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:52:37,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:52:37,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:52:37,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:52:37,838 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:52:37,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:52:37,947 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2021-10-28 08:52:37,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:52:37,948 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2021-10-28 08:52:37,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:52:37,949 INFO L225 Difference]: With dead ends: 33 [2021-10-28 08:52:37,949 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 08:52:37,955 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:52:37,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 08:52:37,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 08:52:37,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:52:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 08:52:37,956 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-10-28 08:52:37,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:52:37,957 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:52:37,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 08:52:37,957 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:52:37,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 08:52:37,960 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 08:52:37,961 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr0REQUIRES_VIOLATION [2021-10-28 08:52:37,961 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr1REQUIRES_VIOLATION [2021-10-28 08:52:37,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr2REQUIRES_VIOLATION [2021-10-28 08:52:37,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr3REQUIRES_VIOLATION [2021-10-28 08:52:37,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr4REQUIRES_VIOLATION [2021-10-28 08:52:37,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr5REQUIRES_VIOLATION [2021-10-28 08:52:37,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr6REQUIRES_VIOLATION [2021-10-28 08:52:37,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr7REQUIRES_VIOLATION [2021-10-28 08:52:37,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr8REQUIRES_VIOLATION [2021-10-28 08:52:37,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr9REQUIRES_VIOLATION [2021-10-28 08:52:37,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr10REQUIRES_VIOLATION [2021-10-28 08:52:37,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr11REQUIRES_VIOLATION [2021-10-28 08:52:37,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr12REQUIRES_VIOLATION [2021-10-28 08:52:37,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr13REQUIRES_VIOLATION [2021-10-28 08:52:37,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr14REQUIRES_VIOLATION [2021-10-28 08:52:37,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr15REQUIRES_VIOLATION [2021-10-28 08:52:37,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr16REQUIRES_VIOLATION [2021-10-28 08:52:37,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr17REQUIRES_VIOLATION [2021-10-28 08:52:37,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr18REQUIRES_VIOLATION [2021-10-28 08:52:37,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr19REQUIRES_VIOLATION [2021-10-28 08:52:37,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr20REQUIRES_VIOLATION [2021-10-28 08:52:37,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr21REQUIRES_VIOLATION [2021-10-28 08:52:37,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr22REQUIRES_VIOLATION [2021-10-28 08:52:37,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr23REQUIRES_VIOLATION [2021-10-28 08:52:37,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr24REQUIRES_VIOLATION [2021-10-28 08:52:37,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr25REQUIRES_VIOLATION [2021-10-28 08:52:37,972 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr26REQUIRES_VIOLATION [2021-10-28 08:52:37,973 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr27REQUIRES_VIOLATION [2021-10-28 08:52:37,973 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr28REQUIRES_VIOLATION [2021-10-28 08:52:37,973 INFO L764 garLoopResultBuilder]: Registering result SAFE for location test_funErr29REQUIRES_VIOLATION [2021-10-28 08:52:37,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 08:52:37,977 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:52:37,980 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:52:37,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:52:37 BoogieIcfgContainer [2021-10-28 08:52:37,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:52:37,986 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:52:37,986 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:52:37,987 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:52:37,987 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:52:34" (3/4) ... [2021-10-28 08:52:37,992 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 08:52:38,001 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2021-10-28 08:52:38,001 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2021-10-28 08:52:38,001 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test_fun [2021-10-28 08:52:38,002 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2021-10-28 08:52:38,003 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2021-10-28 08:52:38,003 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2021-10-28 08:52:38,003 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2021-10-28 08:52:38,003 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2021-10-28 08:52:38,014 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-28 08:52:38,015 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-28 08:52:38,015 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 08:52:38,016 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:52:38,086 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:52:38,086 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:52:38,088 INFO L168 Benchmark]: Toolchain (without parser) took 4842.74 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 64.0 MB in the beginning and 68.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:52:38,089 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 98.6 MB. Free memory is still 53.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:52:38,091 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.22 ms. Allocated memory is still 98.6 MB. Free memory was 63.6 MB in the beginning and 67.6 MB in the end (delta: -3.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:52:38,092 INFO L168 Benchmark]: Boogie Preprocessor took 116.09 ms. Allocated memory is still 98.6 MB. Free memory was 67.6 MB in the beginning and 65.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:52:38,092 INFO L168 Benchmark]: RCFGBuilder took 823.48 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 65.5 MB in the beginning and 106.4 MB in the end (delta: -40.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:52:38,093 INFO L168 Benchmark]: TraceAbstraction took 3117.47 ms. Allocated memory is still 132.1 MB. Free memory was 105.9 MB in the beginning and 72.8 MB in the end (delta: 33.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:52:38,093 INFO L168 Benchmark]: Witness Printer took 100.32 ms. Allocated memory is still 132.1 MB. Free memory was 72.8 MB in the beginning and 68.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:52:38,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 98.6 MB. Free memory is still 53.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 673.22 ms. Allocated memory is still 98.6 MB. Free memory was 63.6 MB in the beginning and 67.6 MB in the end (delta: -3.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 116.09 ms. Allocated memory is still 98.6 MB. Free memory was 67.6 MB in the beginning and 65.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 823.48 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 65.5 MB in the beginning and 106.4 MB in the end (delta: -40.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3117.47 ms. Allocated memory is still 132.1 MB. Free memory was 105.9 MB in the beginning and 72.8 MB in the end (delta: 33.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. * Witness Printer took 100.32 ms. Allocated memory is still 132.1 MB. Free memory was 72.8 MB in the beginning and 68.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 532]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 519]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 519]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 82 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 202 SDtfs, 309 SDslu, 87 SDs, 0 SdLazy, 627 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 617 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 31 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 08:52:38,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69537ba1-af77-4424-ad34-edb7cb03b328/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...