./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:05:44,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:05:44,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:05:44,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:05:44,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:05:44,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:05:44,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:05:44,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:05:44,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:05:44,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:05:44,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:05:44,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:05:44,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:05:44,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:05:44,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:05:44,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:05:44,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:05:44,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:05:44,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:05:44,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:05:44,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:05:44,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:05:44,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:05:44,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:05:44,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:05:44,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:05:44,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:05:44,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:05:44,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:05:44,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:05:44,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:05:44,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:05:44,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:05:44,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:05:44,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:05:44,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:05:44,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:05:44,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:05:44,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:05:44,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:05:44,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:05:44,646 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 13:05:44,675 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:05:44,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:05:44,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:05:44,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:05:44,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:05:44,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:05:44,679 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:05:44,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:05:44,680 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:05:44,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:05:44,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:05:44,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:05:44,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:05:44,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:05:44,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:05:44,682 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:05:44,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:05:44,683 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:05:44,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:05:44,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:05:44,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:05:44,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:05:44,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:05:44,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:05:44,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:05:44,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:05:44,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:05:44,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:05:44,687 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:05:44,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:05:44,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:05:44,688 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:05:44,688 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_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 [2021-11-23 13:05:45,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:05:45,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:05:45,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:05:45,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:05:45,080 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:05:45,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2021-11-23 13:05:45,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/data/afa0b2111/6c148f34db4749a8bfec90ba54a0fbb8/FLAG87078e4be [2021-11-23 13:05:45,710 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:05:45,711 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2021-11-23 13:05:45,718 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/data/afa0b2111/6c148f34db4749a8bfec90ba54a0fbb8/FLAG87078e4be [2021-11-23 13:05:46,063 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/data/afa0b2111/6c148f34db4749a8bfec90ba54a0fbb8 [2021-11-23 13:05:46,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:05:46,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:05:46,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:05:46,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:05:46,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:05:46,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:05:46" (1/1) ... [2021-11-23 13:05:46,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6019ec8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:46, skipping insertion in model container [2021-11-23 13:05:46,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:05:46" (1/1) ... [2021-11-23 13:05:46,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:05:46,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:05:46,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i[893,906] [2021-11-23 13:05:46,318 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:05:46,327 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:05:46,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i[893,906] [2021-11-23 13:05:46,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:05:46,373 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:05:46,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:46 WrapperNode [2021-11-23 13:05:46,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:05:46,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:05:46,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:05:46,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:05:46,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:46" (1/1) ... [2021-11-23 13:05:46,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:46" (1/1) ... [2021-11-23 13:05:46,427 INFO L137 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 175 [2021-11-23 13:05:46,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:05:46,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:05:46,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:05:46,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:05:46,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:46" (1/1) ... [2021-11-23 13:05:46,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:46" (1/1) ... [2021-11-23 13:05:46,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:46" (1/1) ... [2021-11-23 13:05:46,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:46" (1/1) ... [2021-11-23 13:05:46,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:46" (1/1) ... [2021-11-23 13:05:46,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:46" (1/1) ... [2021-11-23 13:05:46,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:46" (1/1) ... [2021-11-23 13:05:46,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:05:46,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:05:46,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:05:46,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:05:46,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:46" (1/1) ... [2021-11-23 13:05:46,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:05:46,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:05:46,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:05:46,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:05:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:05:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:05:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:05:46,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:05:46,693 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:05:46,695 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:05:47,003 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:05:47,012 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:05:47,012 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 13:05:47,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:05:47 BoogieIcfgContainer [2021-11-23 13:05:47,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:05:47,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:05:47,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:05:47,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:05:47,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:05:46" (1/3) ... [2021-11-23 13:05:47,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a06ab16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:05:47, skipping insertion in model container [2021-11-23 13:05:47,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:05:46" (2/3) ... [2021-11-23 13:05:47,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a06ab16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:05:47, skipping insertion in model container [2021-11-23 13:05:47,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:05:47" (3/3) ... [2021-11-23 13:05:47,047 INFO L111 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i [2021-11-23 13:05:47,067 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:05:47,067 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-23 13:05:47,158 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:05:47,167 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2021-11-23 13:05:47,167 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-23 13:05:47,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 59 states have (on average 1.6610169491525424) internal successors, (98), 75 states have internal predecessors, (98), 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) [2021-11-23 13:05:47,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 13:05:47,193 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:05:47,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:05:47,194 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-23 13:05:47,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:05:47,201 INFO L85 PathProgramCache]: Analyzing trace with hash 182520880, now seen corresponding path program 1 times [2021-11-23 13:05:47,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:05:47,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006565007] [2021-11-23 13:05:47,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:05:47,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:05:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:05:47,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:05:47,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:05:47,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006565007] [2021-11-23 13:05:47,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006565007] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:05:47,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:05:47,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:05:47,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559141006] [2021-11-23 13:05:47,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:05:47,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:05:47,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:05:47,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:05:47,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:05:47,558 INFO L87 Difference]: Start difference. First operand has 76 states, 59 states have (on average 1.6610169491525424) internal successors, (98), 75 states have internal predecessors, (98), 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) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-23 13:05:47,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:05:47,735 INFO L93 Difference]: Finished difference Result 155 states and 202 transitions. [2021-11-23 13:05:47,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:05:47,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2021-11-23 13:05:47,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:05:47,757 INFO L225 Difference]: With dead ends: 155 [2021-11-23 13:05:47,758 INFO L226 Difference]: Without dead ends: 74 [2021-11-23 13:05:47,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:05:47,772 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 13 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:05:47,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 114 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:05:47,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-23 13:05:47,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2021-11-23 13:05:47,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 69 states have internal predecessors, (73), 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) [2021-11-23 13:05:47,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2021-11-23 13:05:47,837 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 8 [2021-11-23 13:05:47,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:05:47,837 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2021-11-23 13:05:47,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-23 13:05:47,838 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2021-11-23 13:05:47,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 13:05:47,839 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:05:47,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:05:47,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:05:47,840 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-23 13:05:47,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:05:47,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1367458032, now seen corresponding path program 1 times [2021-11-23 13:05:47,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:05:47,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469777370] [2021-11-23 13:05:47,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:05:47,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:05:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:05:47,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:05:47,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:05:47,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469777370] [2021-11-23 13:05:47,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469777370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:05:47,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:05:47,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:05:47,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741069900] [2021-11-23 13:05:47,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:05:47,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:05:47,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:05:47,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:05:47,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:05:47,905 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-11-23 13:05:48,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:05:48,052 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2021-11-23 13:05:48,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:05:48,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) Word has length 9 [2021-11-23 13:05:48,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:05:48,055 INFO L225 Difference]: With dead ends: 77 [2021-11-23 13:05:48,055 INFO L226 Difference]: Without dead ends: 73 [2021-11-23 13:05:48,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:05:48,058 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 43 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:05:48,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 98 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:05:48,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-23 13:05:48,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 66. [2021-11-23 13:05:48,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 53 states have (on average 1.3018867924528301) internal successors, (69), 65 states have internal predecessors, (69), 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) [2021-11-23 13:05:48,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2021-11-23 13:05:48,085 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 9 [2021-11-23 13:05:48,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:05:48,085 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2021-11-23 13:05:48,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-11-23 13:05:48,086 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2021-11-23 13:05:48,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 13:05:48,087 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:05:48,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:05:48,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:05:48,087 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-23 13:05:48,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:05:48,091 INFO L85 PathProgramCache]: Analyzing trace with hash -690937453, now seen corresponding path program 1 times [2021-11-23 13:05:48,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:05:48,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409666290] [2021-11-23 13:05:48,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:05:48,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:05:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:05:48,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:05:48,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:05:48,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409666290] [2021-11-23 13:05:48,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409666290] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:05:48,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:05:48,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:05:48,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084441441] [2021-11-23 13:05:48,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:05:48,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:05:48,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:05:48,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:05:48,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:05:48,225 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-23 13:05:48,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:05:48,390 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2021-11-23 13:05:48,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:05:48,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) Word has length 10 [2021-11-23 13:05:48,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:05:48,395 INFO L225 Difference]: With dead ends: 70 [2021-11-23 13:05:48,397 INFO L226 Difference]: Without dead ends: 62 [2021-11-23 13:05:48,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:05:48,400 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 58 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:05:48,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 55 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:05:48,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-23 13:05:48,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2021-11-23 13:05:48,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 57 states have internal predecessors, (61), 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) [2021-11-23 13:05:48,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2021-11-23 13:05:48,423 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 10 [2021-11-23 13:05:48,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:05:48,424 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2021-11-23 13:05:48,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-23 13:05:48,425 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2021-11-23 13:05:48,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 13:05:48,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:05:48,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:05:48,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 13:05:48,427 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-23 13:05:48,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:05:48,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1359739798, now seen corresponding path program 1 times [2021-11-23 13:05:48,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:05:48,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852864367] [2021-11-23 13:05:48,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:05:48,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:05:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:05:48,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:05:48,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:05:48,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852864367] [2021-11-23 13:05:48,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852864367] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:05:48,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:05:48,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 13:05:48,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036650482] [2021-11-23 13:05:48,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:05:48,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:05:48,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:05:48,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:05:48,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:05:48,509 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-11-23 13:05:48,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:05:48,652 INFO L93 Difference]: Finished difference Result 62 states and 67 transitions. [2021-11-23 13:05:48,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:05:48,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) Word has length 13 [2021-11-23 13:05:48,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:05:48,663 INFO L225 Difference]: With dead ends: 62 [2021-11-23 13:05:48,664 INFO L226 Difference]: Without dead ends: 58 [2021-11-23 13:05:48,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:05:48,667 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 73 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:05:48,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 79 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:05:48,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-23 13:05:48,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2021-11-23 13:05:48,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 53 states have internal predecessors, (57), 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) [2021-11-23 13:05:48,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2021-11-23 13:05:48,681 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 13 [2021-11-23 13:05:48,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:05:48,681 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2021-11-23 13:05:48,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-11-23 13:05:48,682 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2021-11-23 13:05:48,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 13:05:48,683 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:05:48,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:05:48,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 13:05:48,684 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-23 13:05:48,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:05:48,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1040049113, now seen corresponding path program 1 times [2021-11-23 13:05:48,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:05:48,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690853383] [2021-11-23 13:05:48,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:05:48,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:05:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:05:48,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:05:48,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:05:48,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690853383] [2021-11-23 13:05:48,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690853383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:05:48,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:05:48,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:05:48,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611309952] [2021-11-23 13:05:48,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:05:48,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:05:48,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:05:48,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:05:48,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:05:48,764 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-11-23 13:05:48,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:05:48,873 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2021-11-23 13:05:48,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:05:48,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) Word has length 15 [2021-11-23 13:05:48,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:05:48,875 INFO L225 Difference]: With dead ends: 59 [2021-11-23 13:05:48,875 INFO L226 Difference]: Without dead ends: 51 [2021-11-23 13:05:48,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:05:48,877 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 38 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:05:48,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 47 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:05:48,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-23 13:05:48,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2021-11-23 13:05:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 45 states have internal predecessors, (49), 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) [2021-11-23 13:05:48,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2021-11-23 13:05:48,889 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 15 [2021-11-23 13:05:48,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:05:48,889 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2021-11-23 13:05:48,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-11-23 13:05:48,890 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2021-11-23 13:05:48,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 13:05:48,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:05:48,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:05:48,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 13:05:48,892 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-23 13:05:48,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:05:48,893 INFO L85 PathProgramCache]: Analyzing trace with hash -136168689, now seen corresponding path program 1 times [2021-11-23 13:05:48,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:05:48,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001719504] [2021-11-23 13:05:48,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:05:48,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:05:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:05:48,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:05:48,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:05:48,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001719504] [2021-11-23 13:05:48,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001719504] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:05:48,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:05:48,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:05:48,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097737231] [2021-11-23 13:05:48,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:05:48,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:05:48,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:05:48,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:05:48,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:05:48,993 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-11-23 13:05:49,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:05:49,109 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2021-11-23 13:05:49,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:05:49,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) Word has length 21 [2021-11-23 13:05:49,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:05:49,112 INFO L225 Difference]: With dead ends: 59 [2021-11-23 13:05:49,112 INFO L226 Difference]: Without dead ends: 57 [2021-11-23 13:05:49,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:05:49,114 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 18 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:05:49,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 79 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:05:49,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-23 13:05:49,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 44. [2021-11-23 13:05:49,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.119047619047619) internal successors, (47), 43 states have internal predecessors, (47), 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) [2021-11-23 13:05:49,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2021-11-23 13:05:49,147 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 21 [2021-11-23 13:05:49,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:05:49,147 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2021-11-23 13:05:49,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-11-23 13:05:49,148 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2021-11-23 13:05:49,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 13:05:49,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:05:49,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:05:49,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 13:05:49,149 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-23 13:05:49,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:05:49,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2144113483, now seen corresponding path program 1 times [2021-11-23 13:05:49,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:05:49,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56010967] [2021-11-23 13:05:49,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:05:49,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:05:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:05:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:05:49,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:05:49,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56010967] [2021-11-23 13:05:49,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56010967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:05:49,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:05:49,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 13:05:49,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955428476] [2021-11-23 13:05:49,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:05:49,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:05:49,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:05:49,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:05:49,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:05:49,271 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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) [2021-11-23 13:05:49,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:05:49,418 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2021-11-23 13:05:49,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 13:05:49,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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) Word has length 25 [2021-11-23 13:05:49,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:05:49,420 INFO L225 Difference]: With dead ends: 50 [2021-11-23 13:05:49,420 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 13:05:49,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-23 13:05:49,422 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 75 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:05:49,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 43 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:05:49,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 13:05:49,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 13:05:49,424 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) [2021-11-23 13:05:49,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 13:05:49,425 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-11-23 13:05:49,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:05:49,425 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:05:49,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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) [2021-11-23 13:05:49,425 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 13:05:49,426 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 13:05:49,429 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 16 remaining) [2021-11-23 13:05:49,430 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (14 of 16 remaining) [2021-11-23 13:05:49,430 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (13 of 16 remaining) [2021-11-23 13:05:49,430 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (12 of 16 remaining) [2021-11-23 13:05:49,431 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (11 of 16 remaining) [2021-11-23 13:05:49,431 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (10 of 16 remaining) [2021-11-23 13:05:49,431 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (9 of 16 remaining) [2021-11-23 13:05:49,432 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (8 of 16 remaining) [2021-11-23 13:05:49,432 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (7 of 16 remaining) [2021-11-23 13:05:49,432 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (6 of 16 remaining) [2021-11-23 13:05:49,432 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (5 of 16 remaining) [2021-11-23 13:05:49,433 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (4 of 16 remaining) [2021-11-23 13:05:49,433 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (3 of 16 remaining) [2021-11-23 13:05:49,433 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (2 of 16 remaining) [2021-11-23 13:05:49,434 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (1 of 16 remaining) [2021-11-23 13:05:49,434 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (0 of 16 remaining) [2021-11-23 13:05:49,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 13:05:49,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 13:05:50,357 INFO L854 garLoopResultBuilder]: At program point L18-17(lines 17 22) the Hoare annotation is: (and (<= (+ 2 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~len~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= (+ 5 |ULTIMATE.start_main_~j~0#1|) |ULTIMATE.start_main_~bufsize~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|)) [2021-11-23 13:05:50,357 INFO L854 garLoopResultBuilder]: At program point L35-2(lines 35 64) the Hoare annotation is: (and (let ((.cse0 (<= 0 |ULTIMATE.start_main_~i~0#1|))) (or (and (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) .cse0) (and .cse0 (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~len~0#1|)))) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|)) [2021-11-23 13:05:50,358 INFO L858 garLoopResultBuilder]: For program point L18-18(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,358 INFO L854 garLoopResultBuilder]: At program point L18-20(lines 17 22) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~j~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~j~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|)) [2021-11-23 13:05:50,358 INFO L858 garLoopResultBuilder]: For program point L18-21(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,358 INFO L854 garLoopResultBuilder]: At program point L18-23(lines 17 22) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~j~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~j~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|)) [2021-11-23 13:05:50,358 INFO L858 garLoopResultBuilder]: For program point L18-24(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,359 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,359 INFO L854 garLoopResultBuilder]: At program point L18-26(lines 17 22) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~j~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~j~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|)) [2021-11-23 13:05:50,359 INFO L858 garLoopResultBuilder]: For program point L18-27(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,359 INFO L854 garLoopResultBuilder]: At program point L18-29(lines 17 22) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~j~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~j~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|)) [2021-11-23 13:05:50,359 INFO L858 garLoopResultBuilder]: For program point L18-30(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,360 INFO L858 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,360 INFO L858 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,360 INFO L854 garLoopResultBuilder]: At program point L18-32(lines 17 22) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~j~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|)) [2021-11-23 13:05:50,360 INFO L858 garLoopResultBuilder]: For program point L19-2(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,360 INFO L858 garLoopResultBuilder]: For program point L18-33(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,360 INFO L858 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,361 INFO L858 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,361 INFO L854 garLoopResultBuilder]: At program point L18-35(lines 17 22) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~j~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|)) [2021-11-23 13:05:50,361 INFO L858 garLoopResultBuilder]: For program point L19-5(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,361 INFO L858 garLoopResultBuilder]: For program point L18-36(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,361 INFO L858 garLoopResultBuilder]: For program point L19-6(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,362 INFO L858 garLoopResultBuilder]: For program point L19-7(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,362 INFO L854 garLoopResultBuilder]: At program point L18-38(lines 17 22) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= (+ 5 |ULTIMATE.start_main_~j~0#1|) |ULTIMATE.start_main_~bufsize~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~len~0#1|)) [2021-11-23 13:05:50,362 INFO L858 garLoopResultBuilder]: For program point L19-8(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,362 INFO L858 garLoopResultBuilder]: For program point L18-39(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,362 INFO L858 garLoopResultBuilder]: For program point L19-9(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,362 INFO L858 garLoopResultBuilder]: For program point L19-10(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,363 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,363 INFO L854 garLoopResultBuilder]: At program point L18-41(lines 17 22) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= (+ 5 |ULTIMATE.start_main_~j~0#1|) |ULTIMATE.start_main_~bufsize~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~len~0#1|)) [2021-11-23 13:05:50,363 INFO L858 garLoopResultBuilder]: For program point L19-11(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,363 INFO L858 garLoopResultBuilder]: For program point L18-42(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,363 INFO L858 garLoopResultBuilder]: For program point L19-12(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,364 INFO L858 garLoopResultBuilder]: For program point L19-13(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,364 INFO L854 garLoopResultBuilder]: At program point L18-44(lines 17 22) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= (+ 5 |ULTIMATE.start_main_~j~0#1|) |ULTIMATE.start_main_~bufsize~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~len~0#1|)) [2021-11-23 13:05:50,364 INFO L858 garLoopResultBuilder]: For program point L19-14(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,364 INFO L858 garLoopResultBuilder]: For program point L18-45(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,364 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 63) no Hoare annotation was computed. [2021-11-23 13:05:50,364 INFO L858 garLoopResultBuilder]: For program point L19-15(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,365 INFO L854 garLoopResultBuilder]: At program point L18-47(lines 17 22) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= (+ 5 |ULTIMATE.start_main_~j~0#1|) |ULTIMATE.start_main_~bufsize~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~len~0#1|)) [2021-11-23 13:05:50,365 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 13:05:50,365 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,365 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,365 INFO L858 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2021-11-23 13:05:50,366 INFO L854 garLoopResultBuilder]: At program point L56(lines 36 63) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= (+ 5 |ULTIMATE.start_main_~j~0#1|) |ULTIMATE.start_main_~bufsize~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~len~0#1|)) [2021-11-23 13:05:50,366 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,366 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 13:05:50,366 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,366 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,367 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,367 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,367 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,367 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 13:05:50,371 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,372 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,372 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,374 INFO L858 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2021-11-23 13:05:50,374 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,374 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 13:05:50,374 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,375 INFO L861 garLoopResultBuilder]: At program point L66(lines 24 67) the Hoare annotation is: true [2021-11-23 13:05:50,375 INFO L854 garLoopResultBuilder]: At program point L34-2(lines 34 65) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|)) [2021-11-23 13:05:50,375 INFO L858 garLoopResultBuilder]: For program point L34-3(lines 34 65) no Hoare annotation was computed. [2021-11-23 13:05:50,375 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-23 13:05:50,375 INFO L858 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,376 INFO L854 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: (and (<= (+ 2 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~len~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= (+ 5 |ULTIMATE.start_main_~j~0#1|) |ULTIMATE.start_main_~bufsize~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|)) [2021-11-23 13:05:50,376 INFO L858 garLoopResultBuilder]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,376 INFO L854 garLoopResultBuilder]: At program point L18-5(lines 17 22) the Hoare annotation is: (and (<= (+ 2 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~len~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= (+ 5 |ULTIMATE.start_main_~j~0#1|) |ULTIMATE.start_main_~bufsize~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|)) [2021-11-23 13:05:50,377 INFO L858 garLoopResultBuilder]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,377 INFO L854 garLoopResultBuilder]: At program point L18-8(lines 17 22) the Hoare annotation is: (and (<= (+ 2 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~len~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= (+ 5 |ULTIMATE.start_main_~j~0#1|) |ULTIMATE.start_main_~bufsize~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|)) [2021-11-23 13:05:50,377 INFO L858 garLoopResultBuilder]: For program point L18-9(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,377 INFO L854 garLoopResultBuilder]: At program point L18-11(lines 17 22) the Hoare annotation is: (and (<= (+ 2 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~len~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= (+ 5 |ULTIMATE.start_main_~j~0#1|) |ULTIMATE.start_main_~bufsize~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|)) [2021-11-23 13:05:50,377 INFO L858 garLoopResultBuilder]: For program point L18-12(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,378 INFO L854 garLoopResultBuilder]: At program point L18-14(lines 17 22) the Hoare annotation is: (and (<= (+ 2 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~len~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= (+ 5 |ULTIMATE.start_main_~j~0#1|) |ULTIMATE.start_main_~bufsize~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= (+ |ULTIMATE.start_main_~limit~0#1| 4) |ULTIMATE.start_main_~bufsize~0#1|)) [2021-11-23 13:05:50,378 INFO L858 garLoopResultBuilder]: For program point L18-15(lines 18 20) no Hoare annotation was computed. [2021-11-23 13:05:50,395 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:05:50,398 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:05:50,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:05:50 BoogieIcfgContainer [2021-11-23 13:05:50,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:05:50,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:05:50,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:05:50,451 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:05:50,451 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:05:47" (3/4) ... [2021-11-23 13:05:50,454 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 13:05:50,481 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2021-11-23 13:05:50,482 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-23 13:05:50,482 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 13:05:50,483 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 13:05:50,575 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 13:05:50,576 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:05:50,577 INFO L158 Benchmark]: Toolchain (without parser) took 4508.88ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 53.6MB in the beginning and 71.7MB in the end (delta: -18.1MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2021-11-23 13:05:50,578 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 90.2MB. Free memory was 70.2MB in the beginning and 70.2MB in the end (delta: 41.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:05:50,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.73ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 53.4MB in the beginning and 84.8MB in the end (delta: -31.4MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-11-23 13:05:50,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.11ms. Allocated memory is still 109.1MB. Free memory was 84.6MB in the beginning and 82.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:05:50,580 INFO L158 Benchmark]: Boogie Preprocessor took 37.02ms. Allocated memory is still 109.1MB. Free memory was 82.7MB in the beginning and 81.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:05:50,580 INFO L158 Benchmark]: RCFGBuilder took 561.05ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 69.0MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 13:05:50,581 INFO L158 Benchmark]: TraceAbstraction took 3420.33ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 68.6MB in the beginning and 76.9MB in the end (delta: -8.4MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2021-11-23 13:05:50,581 INFO L158 Benchmark]: Witness Printer took 125.30ms. Allocated memory is still 134.2MB. Free memory was 76.9MB in the beginning and 71.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 13:05:50,584 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 90.2MB. Free memory was 70.2MB in the beginning and 70.2MB in the end (delta: 41.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.73ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 53.4MB in the beginning and 84.8MB in the end (delta: -31.4MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.11ms. Allocated memory is still 109.1MB. Free memory was 84.6MB in the beginning and 82.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.02ms. Allocated memory is still 109.1MB. Free memory was 82.7MB in the beginning and 81.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 561.05ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 69.0MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3420.33ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 68.6MB in the beginning and 76.9MB in the end (delta: -8.4MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. * Witness Printer took 125.30ms. Allocated memory is still 134.2MB. Free memory was 76.9MB in the beginning and 71.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 318 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 318 mSDsluCounter, 515 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 163 mSDsCounter, 177 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 329 IncrementalHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 177 mSolverCounterUnsat, 352 mSDtfsCounter, 329 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 37 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 20 PreInvPairs, 46 NumberOfFragments, 423 HoareAnnotationTreeSize, 20 FomulaSimplifications, 1362 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 20 FomulaSimplificationsInter, 2395 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 16 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((0 <= j && 5 + j <= bufsize) && !(cond == 0)) && 0 <= i) && limit + 4 <= bufsize) && i < len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((2 + i <= len && 0 <= j) && 5 + j <= bufsize) && !(cond == 0)) && 0 <= i) && limit + 4 <= bufsize - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((0 <= j && 5 + j <= bufsize) && 0 <= i) && limit + 4 <= bufsize) && i < len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((0 <= j && 5 + j <= bufsize) && !(cond == 0)) && 0 <= i) && limit + 4 <= bufsize) && i < len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((0 <= j && !(cond == 0)) && 0 <= i) && limit + 4 <= bufsize - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((0 <= j && 5 + j <= bufsize) && !(cond == 0)) && 0 <= i) && limit + 4 <= bufsize) && i < len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((2 + i <= len && 0 <= j) && 5 + j <= bufsize) && !(cond == 0)) && 0 <= i) && limit + 4 <= bufsize - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((2 + i <= len && 0 <= j) && 5 + j <= bufsize) && !(cond == 0)) && 0 <= i) && limit + 4 <= bufsize - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((0 <= j && !(cond == 0)) && 0 <= i) && j + 4 <= bufsize) && limit + 4 <= bufsize - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 0 <= i && limit + 4 <= bufsize - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((0 <= j && !(cond == 0)) && 0 <= i) && j + 4 <= bufsize) && limit + 4 <= bufsize - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((0 <= j && !(cond == 0)) && 0 <= i) && limit + 4 <= bufsize - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((0 <= j && 5 + j <= bufsize) && !(cond == 0)) && 0 <= i) && limit + 4 <= bufsize) && i < len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((2 + i <= len && 0 <= j) && 5 + j <= bufsize) && !(cond == 0)) && 0 <= i) && limit + 4 <= bufsize - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((2 + i <= len && 0 <= j) && 5 + j <= bufsize) && !(cond == 0)) && 0 <= i) && limit + 4 <= bufsize - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((2 + i <= len && 0 <= j) && 5 + j <= bufsize) && !(cond == 0)) && 0 <= i) && limit + 4 <= bufsize - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((0 <= j && !(cond == 0)) && 0 <= i) && j + 4 <= bufsize) && limit + 4 <= bufsize - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((!(cond == 0) && 0 <= i) || (0 <= i && i < len)) && 0 <= j) && limit + 4 <= bufsize - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((0 <= j && !(cond == 0)) && 0 <= i) && j + 4 <= bufsize) && limit + 4 <= bufsize RESULT: Ultimate proved your program to be correct! [2021-11-23 13:05:50,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4baf2e7-ce0f-417f-8e93-235fab20f45d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE