./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.4.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a --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 64bit --witnessprinter.graph.data.programhash 0e77c96d51d92abd065301d9240e158e1f8ec2ea9373cb76178f6cbd75140510 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 13:56:37,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:56:37,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:56:37,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:56:37,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:56:37,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:56:37,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:56:37,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:56:37,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:56:37,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:56:37,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:56:37,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:56:37,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:56:37,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:56:37,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:56:37,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:56:37,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:56:37,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:56:37,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:56:37,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:56:37,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:56:37,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:56:37,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:56:37,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:56:37,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:56:37,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:56:37,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:56:37,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:56:37,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:56:37,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:56:37,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:56:37,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:56:37,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:56:37,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:56:37,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:56:37,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:56:37,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:56:37,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:56:37,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:56:37,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:56:37,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:56:37,143 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 13:56:37,186 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:56:37,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:56:37,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:56:37,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:56:37,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:56:37,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:56:37,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:56:37,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:56:37,190 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:56:37,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:56:37,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:56:37,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:56:37,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:56:37,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:56:37,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:56:37,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:56:37,193 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:56:37,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:56:37,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:56:37,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:56:37,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:56:37,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:56:37,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:56:37,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:56:37,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:56:37,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:56:37,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:56:37,195 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:56:37,196 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:56:37,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:56:37,196 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_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e77c96d51d92abd065301d9240e158e1f8ec2ea9373cb76178f6cbd75140510 [2022-11-21 13:56:37,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:56:37,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:56:37,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:56:37,537 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:56:37,538 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:56:37,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.4.prop1-func-interl.c [2022-11-21 13:56:40,584 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:56:40,916 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:56:40,917 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.4.prop1-func-interl.c [2022-11-21 13:56:40,936 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/data/9681fbb31/42fca3ab8a034f19917172a6800b1514/FLAG874425aeb [2022-11-21 13:56:40,958 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/data/9681fbb31/42fca3ab8a034f19917172a6800b1514 [2022-11-21 13:56:40,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:56:40,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:56:40,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:56:40,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:56:40,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:56:40,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:56:40" (1/1) ... [2022-11-21 13:56:40,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe5cddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:40, skipping insertion in model container [2022-11-21 13:56:40,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:56:40" (1/1) ... [2022-11-21 13:56:40,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:56:41,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:56:41,343 WARN L237 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_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.4.prop1-func-interl.c[1014,1027] [2022-11-21 13:56:41,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:56:41,750 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:56:41,762 WARN L237 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_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.4.prop1-func-interl.c[1014,1027] [2022-11-21 13:56:41,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:56:41,975 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:56:41,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:41 WrapperNode [2022-11-21 13:56:41,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:56:41,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:56:41,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:56:41,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:56:41,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:41" (1/1) ... [2022-11-21 13:56:42,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:41" (1/1) ... [2022-11-21 13:56:42,207 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2466 [2022-11-21 13:56:42,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:56:42,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:56:42,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:56:42,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:56:42,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:41" (1/1) ... [2022-11-21 13:56:42,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:41" (1/1) ... [2022-11-21 13:56:42,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:41" (1/1) ... [2022-11-21 13:56:42,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:41" (1/1) ... [2022-11-21 13:56:42,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:41" (1/1) ... [2022-11-21 13:56:42,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:41" (1/1) ... [2022-11-21 13:56:42,332 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:41" (1/1) ... [2022-11-21 13:56:42,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:41" (1/1) ... [2022-11-21 13:56:42,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:56:42,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:56:42,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:56:42,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:56:42,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:41" (1/1) ... [2022-11-21 13:56:42,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:56:42,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:56:42,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:56:42,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:56:42,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:56:42,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:56:43,082 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:56:43,084 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 14:09:12,302 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 14:09:12,311 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 14:09:12,311 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 14:09:12,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:09:12 BoogieIcfgContainer [2022-11-21 14:09:12,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 14:09:12,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 14:09:12,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 14:09:12,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 14:09:12,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:56:40" (1/3) ... [2022-11-21 14:09:12,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bdb999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:09:12, skipping insertion in model container [2022-11-21 14:09:12,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:41" (2/3) ... [2022-11-21 14:09:12,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bdb999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:09:12, skipping insertion in model container [2022-11-21 14:09:12,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:09:12" (3/3) ... [2022-11-21 14:09:12,330 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.fischer.4.prop1-func-interl.c [2022-11-21 14:09:12,354 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 14:09:12,354 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 14:09:12,430 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 14:09:12,439 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@258b03f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 14:09:12,440 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 14:09:12,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) [2022-11-21 14:09:12,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 14:09:12,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 14:09:12,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 14:09:12,464 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 14:09:12,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:09:12,477 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 14:09:12,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:09:12,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273659714] [2022-11-21 14:09:12,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:09:12,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:09:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 14:09:13,195 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 14:09:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 14:09:13,470 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 14:09:13,476 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 14:09:13,478 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 14:09:13,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 14:09:13,487 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 14:09:13,494 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 14:09:13,552 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-21 14:09:13,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 02:09:13 BoogieIcfgContainer [2022-11-21 14:09:13,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 14:09:13,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 14:09:13,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 14:09:13,585 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 14:09:13,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:09:12" (3/4) ... [2022-11-21 14:09:13,593 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 14:09:13,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 14:09:13,596 INFO L158 Benchmark]: Toolchain (without parser) took 752632.48ms. Allocated memory was 132.1MB in the beginning and 935.3MB in the end (delta: 803.2MB). Free memory was 71.8MB in the beginning and 687.6MB in the end (delta: -615.9MB). Peak memory consumption was 189.8MB. Max. memory is 16.1GB. [2022-11-21 14:09:13,596 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 132.1MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 14:09:13,598 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1008.47ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 71.6MB in the beginning and 121.5MB in the end (delta: -49.9MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2022-11-21 14:09:13,599 INFO L158 Benchmark]: Boogie Procedure Inliner took 231.82ms. Allocated memory is still 176.2MB. Free memory was 121.5MB in the beginning and 91.4MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-21 14:09:13,605 INFO L158 Benchmark]: Boogie Preprocessor took 170.85ms. Allocated memory is still 176.2MB. Free memory was 91.4MB in the beginning and 77.4MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 14:09:13,606 INFO L158 Benchmark]: RCFGBuilder took 749933.36ms. Allocated memory was 176.2MB in the beginning and 935.3MB in the end (delta: 759.2MB). Free memory was 77.4MB in the beginning and 758.9MB in the end (delta: -681.5MB). Peak memory consumption was 538.7MB. Max. memory is 16.1GB. [2022-11-21 14:09:13,608 INFO L158 Benchmark]: TraceAbstraction took 1264.53ms. Allocated memory is still 935.3MB. Free memory was 758.9MB in the beginning and 687.6MB in the end (delta: 71.3MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2022-11-21 14:09:13,608 INFO L158 Benchmark]: Witness Printer took 9.50ms. Allocated memory is still 935.3MB. Free memory is still 687.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 14:09:13,617 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 132.1MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1008.47ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 71.6MB in the beginning and 121.5MB in the end (delta: -49.9MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 231.82ms. Allocated memory is still 176.2MB. Free memory was 121.5MB in the beginning and 91.4MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 170.85ms. Allocated memory is still 176.2MB. Free memory was 91.4MB in the beginning and 77.4MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * RCFGBuilder took 749933.36ms. Allocated memory was 176.2MB in the beginning and 935.3MB in the end (delta: 759.2MB). Free memory was 77.4MB in the beginning and 758.9MB in the end (delta: -681.5MB). Peak memory consumption was 538.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1264.53ms. Allocated memory is still 935.3MB. Free memory was 758.9MB in the beginning and 687.6MB in the end (delta: 71.3MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. * Witness Printer took 9.50ms. Allocated memory is still 935.3MB. Free memory is still 687.6MB. There was no memory consumed. 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 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 338, overapproximation of bitwiseAnd at line 215. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_22 = 0; [L39] const SORT_4 var_83 = 1; [L40] const SORT_4 var_84 = 0; [L41] const SORT_2 var_102 = 0; [L42] const SORT_2 var_104 = 7; [L43] const SORT_2 var_107 = 6; [L44] const SORT_2 var_110 = 5; [L45] const SORT_2 var_113 = 4; [L46] const SORT_2 var_116 = 3; [L47] const SORT_2 var_119 = 2; [L48] const SORT_2 var_122 = 1; [L49] const SORT_2 var_138 = 255; [L50] const SORT_3 var_142 = 0; [L51] const SORT_4 var_146 = 255; [L53] SORT_1 input_101; [L54] SORT_1 input_103; [L55] SORT_1 input_105; [L56] SORT_1 input_106; [L57] SORT_1 input_108; [L58] SORT_1 input_109; [L59] SORT_1 input_111; [L60] SORT_1 input_112; [L61] SORT_1 input_114; [L62] SORT_1 input_115; [L63] SORT_1 input_117; [L64] SORT_1 input_118; [L65] SORT_1 input_120; [L66] SORT_1 input_121; [L67] SORT_1 input_139; [L68] SORT_1 input_140; [L69] SORT_1 input_141; [L70] SORT_1 input_158; [L71] SORT_1 input_159; [L72] SORT_1 input_174; [L73] SORT_1 input_175; [L74] SORT_1 input_190; [L75] SORT_1 input_191; [L76] SORT_1 input_206; [L77] SORT_1 input_207; [L78] SORT_1 input_222; [L79] SORT_1 input_223; [L80] SORT_1 input_238; [L81] SORT_1 input_239; [L82] SORT_1 input_256; [L83] SORT_1 input_264; [L84] SORT_1 input_272; [L85] SORT_1 input_280; [L86] SORT_1 input_288; [L87] SORT_1 input_296; [L88] SORT_1 input_304; [L89] SORT_1 input_312; [L90] SORT_1 input_320; [L91] SORT_1 input_328; [L92] SORT_1 input_336; [L93] SORT_1 input_344; [L94] SORT_1 input_352; [L95] SORT_1 input_360; [L97] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L100] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L101] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L102] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L103] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L104] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L105] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L125] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L127] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L128] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L129] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L130] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L131] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L132] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L133] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L134] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L136] SORT_2 init_7_arg_1 = var_5; [L137] state_6 = init_7_arg_1 [L138] SORT_2 init_9_arg_1 = var_5; [L139] state_8 = init_9_arg_1 [L140] SORT_2 init_11_arg_1 = var_5; [L141] state_10 = init_11_arg_1 [L142] SORT_2 init_13_arg_1 = var_5; [L143] state_12 = init_13_arg_1 [L144] SORT_2 init_15_arg_1 = var_5; [L145] state_14 = init_15_arg_1 [L146] SORT_2 init_17_arg_1 = var_5; [L147] state_16 = init_17_arg_1 [L148] SORT_2 init_19_arg_1 = var_5; [L149] state_18 = init_19_arg_1 [L150] SORT_2 init_21_arg_1 = var_5; [L151] state_20 = init_21_arg_1 [L152] SORT_1 init_24_arg_1 = var_22; [L153] state_23 = init_24_arg_1 [L154] SORT_1 init_26_arg_1 = var_22; [L155] state_25 = init_26_arg_1 [L156] SORT_1 init_28_arg_1 = var_22; [L157] state_27 = init_28_arg_1 [L158] SORT_1 init_30_arg_1 = var_22; [L159] state_29 = init_30_arg_1 [L160] SORT_1 init_32_arg_1 = var_22; [L161] state_31 = init_32_arg_1 [L162] SORT_1 init_34_arg_1 = var_22; [L163] state_33 = init_34_arg_1 [L164] SORT_1 init_36_arg_1 = var_22; [L165] state_35 = init_36_arg_1 [L166] SORT_1 init_38_arg_1 = var_22; [L167] state_37 = init_38_arg_1 [L168] SORT_1 init_40_arg_1 = var_22; [L169] state_39 = init_40_arg_1 [L170] SORT_1 init_42_arg_1 = var_22; [L171] state_41 = init_42_arg_1 [L172] SORT_1 init_44_arg_1 = var_22; [L173] state_43 = init_44_arg_1 [L174] SORT_1 init_46_arg_1 = var_22; [L175] state_45 = init_46_arg_1 [L176] SORT_1 init_48_arg_1 = var_22; [L177] state_47 = init_48_arg_1 [L178] SORT_1 init_50_arg_1 = var_22; [L179] state_49 = init_50_arg_1 [L180] SORT_1 init_52_arg_1 = var_22; [L181] state_51 = init_52_arg_1 [L182] SORT_1 init_54_arg_1 = var_22; [L183] state_53 = init_54_arg_1 [L184] SORT_1 init_56_arg_1 = var_22; [L185] state_55 = init_56_arg_1 [L186] SORT_1 init_58_arg_1 = var_22; [L187] state_57 = init_58_arg_1 [L188] SORT_1 init_60_arg_1 = var_22; [L189] state_59 = init_60_arg_1 [L190] SORT_1 init_62_arg_1 = var_22; [L191] state_61 = init_62_arg_1 [L192] SORT_1 init_64_arg_1 = var_22; [L193] state_63 = init_64_arg_1 [L194] SORT_1 init_66_arg_1 = var_22; [L195] state_65 = init_66_arg_1 [L196] SORT_1 init_68_arg_1 = var_22; [L197] state_67 = init_68_arg_1 [L198] SORT_1 init_70_arg_1 = var_22; [L199] state_69 = init_70_arg_1 [L200] SORT_1 init_72_arg_1 = var_22; [L201] state_71 = init_72_arg_1 [L202] SORT_1 init_74_arg_1 = var_22; [L203] state_73 = init_74_arg_1 [L204] SORT_1 init_76_arg_1 = var_22; [L205] state_75 = init_76_arg_1 [L206] SORT_1 init_78_arg_1 = var_22; [L207] state_77 = init_78_arg_1 [L208] SORT_1 init_80_arg_1 = var_22; [L209] state_79 = init_80_arg_1 [L210] SORT_1 init_82_arg_1 = var_22; [L211] state_81 = init_82_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, var_102=0, var_104=7, var_107=6, var_110=5, var_113=4, var_116=3, var_119=2, var_122=1, var_138=255, var_142=0, var_146=255, var_22=0, var_5=0, var_83=1, var_84=0] [L214] input_101 = __VERIFIER_nondet_uchar() [L215] input_101 = input_101 & mask_SORT_1 [L216] input_103 = __VERIFIER_nondet_uchar() [L217] input_103 = input_103 & mask_SORT_1 [L218] input_105 = __VERIFIER_nondet_uchar() [L219] input_105 = input_105 & mask_SORT_1 [L220] input_106 = __VERIFIER_nondet_uchar() [L221] input_106 = input_106 & mask_SORT_1 [L222] input_108 = __VERIFIER_nondet_uchar() [L223] input_108 = input_108 & mask_SORT_1 [L224] input_109 = __VERIFIER_nondet_uchar() [L225] input_109 = input_109 & mask_SORT_1 [L226] input_111 = __VERIFIER_nondet_uchar() [L227] input_111 = input_111 & mask_SORT_1 [L228] input_112 = __VERIFIER_nondet_uchar() [L229] input_112 = input_112 & mask_SORT_1 [L230] input_114 = __VERIFIER_nondet_uchar() [L231] input_114 = input_114 & mask_SORT_1 [L232] input_115 = __VERIFIER_nondet_uchar() [L233] input_115 = input_115 & mask_SORT_1 [L234] input_117 = __VERIFIER_nondet_uchar() [L235] input_117 = input_117 & mask_SORT_1 [L236] input_118 = __VERIFIER_nondet_uchar() [L237] input_118 = input_118 & mask_SORT_1 [L238] input_120 = __VERIFIER_nondet_uchar() [L239] input_120 = input_120 & mask_SORT_1 [L240] input_121 = __VERIFIER_nondet_uchar() [L241] input_121 = input_121 & mask_SORT_1 [L242] input_139 = __VERIFIER_nondet_uchar() [L243] input_139 = input_139 & mask_SORT_1 [L244] input_140 = __VERIFIER_nondet_uchar() [L245] input_140 = input_140 & mask_SORT_1 [L246] input_141 = __VERIFIER_nondet_uchar() [L247] input_141 = input_141 & mask_SORT_1 [L248] input_158 = __VERIFIER_nondet_uchar() [L249] input_158 = input_158 & mask_SORT_1 [L250] input_159 = __VERIFIER_nondet_uchar() [L251] input_159 = input_159 & mask_SORT_1 [L252] input_174 = __VERIFIER_nondet_uchar() [L253] input_174 = input_174 & mask_SORT_1 [L254] input_175 = __VERIFIER_nondet_uchar() [L255] input_175 = input_175 & mask_SORT_1 [L256] input_190 = __VERIFIER_nondet_uchar() [L257] input_190 = input_190 & mask_SORT_1 [L258] input_191 = __VERIFIER_nondet_uchar() [L259] input_191 = input_191 & mask_SORT_1 [L260] input_206 = __VERIFIER_nondet_uchar() [L261] input_206 = input_206 & mask_SORT_1 [L262] input_207 = __VERIFIER_nondet_uchar() [L263] input_207 = input_207 & mask_SORT_1 [L264] input_222 = __VERIFIER_nondet_uchar() [L265] input_222 = input_222 & mask_SORT_1 [L266] input_223 = __VERIFIER_nondet_uchar() [L267] input_223 = input_223 & mask_SORT_1 [L268] input_238 = __VERIFIER_nondet_uchar() [L269] input_238 = input_238 & mask_SORT_1 [L270] input_239 = __VERIFIER_nondet_uchar() [L271] input_239 = input_239 & mask_SORT_1 [L272] input_256 = __VERIFIER_nondet_uchar() [L273] input_264 = __VERIFIER_nondet_uchar() [L274] input_272 = __VERIFIER_nondet_uchar() [L275] input_280 = __VERIFIER_nondet_uchar() [L276] input_288 = __VERIFIER_nondet_uchar() [L277] input_296 = __VERIFIER_nondet_uchar() [L278] input_304 = __VERIFIER_nondet_uchar() [L279] input_312 = __VERIFIER_nondet_uchar() [L280] input_320 = __VERIFIER_nondet_uchar() [L281] input_328 = __VERIFIER_nondet_uchar() [L282] input_336 = __VERIFIER_nondet_uchar() [L283] input_344 = __VERIFIER_nondet_uchar() [L284] input_352 = __VERIFIER_nondet_uchar() [L285] input_360 = __VERIFIER_nondet_uchar() [L288] SORT_1 var_85_arg_0 = state_31; [L289] SORT_4 var_85_arg_1 = var_83; [L290] SORT_4 var_85_arg_2 = var_84; [L291] SORT_4 var_85 = var_85_arg_0 ? var_85_arg_1 : var_85_arg_2; [L292] SORT_1 var_86_arg_0 = state_39; [L293] SORT_4 var_86_arg_1 = var_83; [L294] SORT_4 var_86_arg_2 = var_84; [L295] SORT_4 var_86 = var_86_arg_0 ? var_86_arg_1 : var_86_arg_2; [L296] SORT_4 var_87_arg_0 = var_85; [L297] SORT_4 var_87_arg_1 = var_86; [L298] SORT_4 var_87 = var_87_arg_0 + var_87_arg_1; [L299] SORT_1 var_88_arg_0 = state_47; [L300] SORT_4 var_88_arg_1 = var_83; [L301] SORT_4 var_88_arg_2 = var_84; [L302] SORT_4 var_88 = var_88_arg_0 ? var_88_arg_1 : var_88_arg_2; [L303] SORT_4 var_89_arg_0 = var_87; [L304] SORT_4 var_89_arg_1 = var_88; [L305] SORT_4 var_89 = var_89_arg_0 + var_89_arg_1; [L306] SORT_1 var_90_arg_0 = state_55; [L307] SORT_4 var_90_arg_1 = var_83; [L308] SORT_4 var_90_arg_2 = var_84; [L309] SORT_4 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L310] SORT_4 var_91_arg_0 = var_89; [L311] SORT_4 var_91_arg_1 = var_90; [L312] SORT_4 var_91 = var_91_arg_0 + var_91_arg_1; [L313] SORT_1 var_92_arg_0 = state_63; [L314] SORT_4 var_92_arg_1 = var_83; [L315] SORT_4 var_92_arg_2 = var_84; [L316] SORT_4 var_92 = var_92_arg_0 ? var_92_arg_1 : var_92_arg_2; [L317] SORT_4 var_93_arg_0 = var_91; [L318] SORT_4 var_93_arg_1 = var_92; [L319] SORT_4 var_93 = var_93_arg_0 + var_93_arg_1; [L320] SORT_1 var_94_arg_0 = state_71; [L321] SORT_4 var_94_arg_1 = var_83; [L322] SORT_4 var_94_arg_2 = var_84; [L323] SORT_4 var_94 = var_94_arg_0 ? var_94_arg_1 : var_94_arg_2; [L324] SORT_4 var_95_arg_0 = var_93; [L325] SORT_4 var_95_arg_1 = var_94; [L326] SORT_4 var_95 = var_95_arg_0 + var_95_arg_1; [L327] SORT_1 var_96_arg_0 = state_79; [L328] SORT_4 var_96_arg_1 = var_83; [L329] SORT_4 var_96_arg_2 = var_84; [L330] SORT_4 var_96 = var_96_arg_0 ? var_96_arg_1 : var_96_arg_2; [L331] SORT_4 var_97_arg_0 = var_95; [L332] SORT_4 var_97_arg_1 = var_96; [L333] SORT_4 var_97 = var_97_arg_0 + var_97_arg_1; [L334] var_97 = var_97 & mask_SORT_4 [L335] SORT_4 var_98_arg_0 = var_97; [L336] SORT_4 var_98_arg_1 = var_83; [L337] SORT_1 var_98 = var_98_arg_0 <= var_98_arg_1; [L338] SORT_1 var_99_arg_0 = ~state_81; [L339] var_99_arg_0 = var_99_arg_0 & mask_SORT_1 [L340] SORT_1 var_99_arg_1 = ~var_98; [L341] var_99_arg_1 = var_99_arg_1 & mask_SORT_1 [L342] SORT_1 var_99 = var_99_arg_0 & var_99_arg_1; [L343] var_99 = var_99 & mask_SORT_1 [L344] SORT_1 bad_100_arg_0 = var_99; [L345] CALL __VERIFIER_assert(!(bad_100_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-21 14:09:13,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a --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 64bit --witnessprinter.graph.data.programhash 0e77c96d51d92abd065301d9240e158e1f8ec2ea9373cb76178f6cbd75140510 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 14:09:16,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 14:09:16,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 14:09:16,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 14:09:16,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 14:09:16,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 14:09:16,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 14:09:16,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 14:09:16,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 14:09:16,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 14:09:16,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 14:09:16,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 14:09:16,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 14:09:16,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 14:09:16,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 14:09:16,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 14:09:16,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 14:09:16,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 14:09:16,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 14:09:16,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 14:09:16,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 14:09:16,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 14:09:16,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 14:09:16,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 14:09:16,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 14:09:16,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 14:09:16,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 14:09:16,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 14:09:16,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 14:09:16,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 14:09:16,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 14:09:16,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 14:09:16,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 14:09:16,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 14:09:16,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 14:09:16,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 14:09:16,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 14:09:16,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 14:09:16,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 14:09:16,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 14:09:16,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 14:09:16,479 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 14:09:16,507 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 14:09:16,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 14:09:16,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 14:09:16,508 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 14:09:16,509 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 14:09:16,509 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 14:09:16,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 14:09:16,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 14:09:16,510 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 14:09:16,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 14:09:16,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 14:09:16,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 14:09:16,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 14:09:16,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 14:09:16,512 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 14:09:16,512 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 14:09:16,512 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 14:09:16,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 14:09:16,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 14:09:16,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 14:09:16,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 14:09:16,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 14:09:16,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 14:09:16,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 14:09:16,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 14:09:16,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 14:09:16,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 14:09:16,515 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 14:09:16,516 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 14:09:16,516 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 14:09:16,516 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 14:09:16,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 14:09:16,517 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 14:09:16,517 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e77c96d51d92abd065301d9240e158e1f8ec2ea9373cb76178f6cbd75140510 [2022-11-21 14:09:16,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 14:09:17,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 14:09:17,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 14:09:17,023 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 14:09:17,023 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 14:09:17,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.4.prop1-func-interl.c [2022-11-21 14:09:20,454 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 14:09:20,945 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 14:09:20,946 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.4.prop1-func-interl.c [2022-11-21 14:09:20,978 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/data/f5cbc033b/bf96ea558b9d46eba89452c4821c6b2f/FLAG88a22eb8b [2022-11-21 14:09:21,010 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/data/f5cbc033b/bf96ea558b9d46eba89452c4821c6b2f [2022-11-21 14:09:21,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 14:09:21,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 14:09:21,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 14:09:21,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 14:09:21,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 14:09:21,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:09:21" (1/1) ... [2022-11-21 14:09:21,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45552a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:21, skipping insertion in model container [2022-11-21 14:09:21,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:09:21" (1/1) ... [2022-11-21 14:09:21,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 14:09:21,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 14:09:21,388 WARN L237 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_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.4.prop1-func-interl.c[1014,1027] [2022-11-21 14:09:21,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:09:21,901 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 14:09:21,915 WARN L237 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_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.4.prop1-func-interl.c[1014,1027] [2022-11-21 14:09:22,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:09:22,147 INFO L208 MainTranslator]: Completed translation [2022-11-21 14:09:22,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:22 WrapperNode [2022-11-21 14:09:22,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 14:09:22,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 14:09:22,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 14:09:22,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 14:09:22,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:22" (1/1) ... [2022-11-21 14:09:22,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:22" (1/1) ... [2022-11-21 14:09:22,427 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2466 [2022-11-21 14:09:22,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 14:09:22,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 14:09:22,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 14:09:22,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 14:09:22,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:22" (1/1) ... [2022-11-21 14:09:22,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:22" (1/1) ... [2022-11-21 14:09:22,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:22" (1/1) ... [2022-11-21 14:09:22,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:22" (1/1) ... [2022-11-21 14:09:22,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:22" (1/1) ... [2022-11-21 14:09:22,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:22" (1/1) ... [2022-11-21 14:09:22,561 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:22" (1/1) ... [2022-11-21 14:09:22,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:22" (1/1) ... [2022-11-21 14:09:22,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 14:09:22,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 14:09:22,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 14:09:22,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 14:09:22,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:22" (1/1) ... [2022-11-21 14:09:22,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 14:09:22,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 14:09:22,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 14:09:22,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 14:09:22,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 14:09:22,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 14:09:23,413 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 14:09:23,415 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 14:09:28,266 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 14:09:28,275 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 14:09:28,275 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 14:09:28,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:09:28 BoogieIcfgContainer [2022-11-21 14:09:28,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 14:09:28,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 14:09:28,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 14:09:28,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 14:09:28,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:09:21" (1/3) ... [2022-11-21 14:09:28,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a22187f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:09:28, skipping insertion in model container [2022-11-21 14:09:28,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:22" (2/3) ... [2022-11-21 14:09:28,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a22187f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:09:28, skipping insertion in model container [2022-11-21 14:09:28,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:09:28" (3/3) ... [2022-11-21 14:09:28,293 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.fischer.4.prop1-func-interl.c [2022-11-21 14:09:28,324 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 14:09:28,325 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 14:09:28,400 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 14:09:28,410 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6416a4b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 14:09:28,411 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 14:09:28,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) [2022-11-21 14:09:28,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 14:09:28,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 14:09:28,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 14:09:28,430 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 14:09:28,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:09:28,440 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 14:09:28,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 14:09:28,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976069276] [2022-11-21 14:09:28,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:09:28,466 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 14:09:28,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 14:09:28,475 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 14:09:28,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-21 14:09:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:09:29,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-21 14:09:29,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 14:09:29,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:09:29,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 14:09:29,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 14:09:29,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976069276] [2022-11-21 14:09:29,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976069276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:09:29,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:09:29,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 14:09:29,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512165012] [2022-11-21 14:09:29,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:09:29,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 14:09:29,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 14:09:29,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 14:09:29,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 14:09:29,911 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-21 14:09:31,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 14:09:31,118 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-21 14:09:31,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 14:09:31,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-11-21 14:09:31,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 14:09:31,130 INFO L225 Difference]: With dead ends: 20 [2022-11-21 14:09:31,131 INFO L226 Difference]: Without dead ends: 11 [2022-11-21 14:09:31,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 14:09:31,138 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-21 14:09:31,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-21 14:09:31,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-21 14:09:31,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-21 14:09:31,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2022-11-21 14:09:31,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-21 14:09:31,175 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-21 14:09:31,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 14:09:31,176 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-21 14:09:31,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-21 14:09:31,176 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-21 14:09:31,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 14:09:31,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 14:09:31,177 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 14:09:31,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-21 14:09:31,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 14:09:31,391 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 14:09:31,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:09:31,391 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-21 14:09:31,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 14:09:31,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258706448] [2022-11-21 14:09:31,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:09:31,396 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 14:09:31,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 14:09:31,398 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 14:09:31,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99b0b5c8-e9e1-42f7-a0af-8c244d46d99d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-21 14:09:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:09:33,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 2201 conjuncts, 270 conjunts are in the unsatisfiable core [2022-11-21 14:09:33,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 14:09:42,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:09:42,183 INFO L328 TraceCheckSpWp]: Computing backward predicates...