./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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_168a868a-83b5-459f-9f41-125cbe186a5e/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 733ceed6be9d24062ba911b31be8a1633ca20a25e8a4a67b98434fc2845023e4 --- 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 09:08:31,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:08:31,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:08:31,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:08:31,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:08:31,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:08:31,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:08:31,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:08:31,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:08:31,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:08:31,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:08:31,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:08:31,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:08:31,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:08:31,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:08:31,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:08:31,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:08:31,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:08:31,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:08:32,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:08:32,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:08:32,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:08:32,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:08:32,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:08:32,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:08:32,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:08:32,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:08:32,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:08:32,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:08:32,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:08:32,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:08:32,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:08:32,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:08:32,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:08:32,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:08:32,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:08:32,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:08:32,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:08:32,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:08:32,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:08:32,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:08:32,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 09:08:32,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:08:32,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:08:32,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:08:32,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:08:32,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:08:32,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:08:32,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:08:32,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:08:32,090 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:08:32,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:08:32,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:08:32,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:08:32,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:08:32,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:08:32,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:08:32,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:08:32,093 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:08:32,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:08:32,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:08:32,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:08:32,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:08:32,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:08:32,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:08:32,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:08:32,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:08:32,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:08:32,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:08:32,096 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:08:32,097 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:08:32,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:08:32,098 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_168a868a-83b5-459f-9f41-125cbe186a5e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 733ceed6be9d24062ba911b31be8a1633ca20a25e8a4a67b98434fc2845023e4 [2022-11-21 09:08:32,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:08:32,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:08:32,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:08:32,457 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:08:32,457 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:08:32,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2022-11-21 09:08:35,455 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:08:35,752 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:08:35,755 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2022-11-21 09:08:35,767 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/data/709792ce7/35bf3c14c2ee4839b774177235d524e4/FLAG4388c2ffc [2022-11-21 09:08:35,791 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/data/709792ce7/35bf3c14c2ee4839b774177235d524e4 [2022-11-21 09:08:35,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:08:35,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:08:35,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:08:35,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:08:35,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:08:35,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:08:35" (1/1) ... [2022-11-21 09:08:35,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45107d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:35, skipping insertion in model container [2022-11-21 09:08:35,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:08:35" (1/1) ... [2022-11-21 09:08:35,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:08:35,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:08:36,066 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_168a868a-83b5-459f-9f41-125cbe186a5e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1107,1120] [2022-11-21 09:08:36,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:08:36,185 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:08:36,201 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_168a868a-83b5-459f-9f41-125cbe186a5e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1107,1120] [2022-11-21 09:08:36,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:08:36,297 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:08:36,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:36 WrapperNode [2022-11-21 09:08:36,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:08:36,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:08:36,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:08:36,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:08:36,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:36" (1/1) ... [2022-11-21 09:08:36,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:36" (1/1) ... [2022-11-21 09:08:36,387 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 267 [2022-11-21 09:08:36,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:08:36,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:08:36,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:08:36,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:08:36,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:36" (1/1) ... [2022-11-21 09:08:36,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:36" (1/1) ... [2022-11-21 09:08:36,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:36" (1/1) ... [2022-11-21 09:08:36,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:36" (1/1) ... [2022-11-21 09:08:36,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:36" (1/1) ... [2022-11-21 09:08:36,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:36" (1/1) ... [2022-11-21 09:08:36,457 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:36" (1/1) ... [2022-11-21 09:08:36,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:36" (1/1) ... [2022-11-21 09:08:36,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:08:36,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:08:36,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:08:36,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:08:36,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:36" (1/1) ... [2022-11-21 09:08:36,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:08:36,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:08:36,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:08:36,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:08:36,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:08:36,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:08:36,742 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:08:36,745 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:08:38,176 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:08:38,183 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:08:38,183 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 09:08:38,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:08:38 BoogieIcfgContainer [2022-11-21 09:08:38,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:08:38,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:08:38,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:08:38,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:08:38,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:08:35" (1/3) ... [2022-11-21 09:08:38,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2d3a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:08:38, skipping insertion in model container [2022-11-21 09:08:38,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:36" (2/3) ... [2022-11-21 09:08:38,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2d3a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:08:38, skipping insertion in model container [2022-11-21 09:08:38,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:08:38" (3/3) ... [2022-11-21 09:08:38,196 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_ball2004_1.c [2022-11-21 09:08:38,216 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:08:38,216 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 09:08:38,265 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:08:38,272 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;@51a95345, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:08:38,272 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 09:08:38,278 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 09:08:38,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 09:08:38,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:08:38,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 09:08:38,286 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:08:38,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:08:38,292 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 09:08:38,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:08:38,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495334553] [2022-11-21 09:08:38,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:08:38,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:08:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:08:38,442 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:08:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:08:38,499 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:08:38,502 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 09:08:38,503 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 09:08:38,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:08:38,511 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 09:08:38,515 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 09:08:38,532 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-21 09:08:38,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:08:38 BoogieIcfgContainer [2022-11-21 09:08:38,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 09:08:38,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:08:38,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:08:38,541 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:08:38,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:08:38" (3/4) ... [2022-11-21 09:08:38,545 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 09:08:38,545 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:08:38,547 INFO L158 Benchmark]: Toolchain (without parser) took 2749.17ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 104.8MB in the beginning and 62.2MB in the end (delta: 42.6MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2022-11-21 09:08:38,548 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:08:38,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.23ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 88.7MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 09:08:38,549 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.36ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 85.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 09:08:38,550 INFO L158 Benchmark]: Boogie Preprocessor took 73.09ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 82.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:08:38,551 INFO L158 Benchmark]: RCFGBuilder took 1722.13ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 82.9MB in the beginning and 82.1MB in the end (delta: 806.9kB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2022-11-21 09:08:38,552 INFO L158 Benchmark]: TraceAbstraction took 351.53ms. Allocated memory is still 176.2MB. Free memory was 81.1MB in the beginning and 62.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 09:08:38,552 INFO L158 Benchmark]: Witness Printer took 5.38ms. Allocated memory is still 176.2MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:08:38,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.23ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 88.7MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.36ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 85.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.09ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 82.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1722.13ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 82.9MB in the beginning and 82.1MB in the end (delta: 806.9kB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. * TraceAbstraction took 351.53ms. Allocated memory is still 176.2MB. Free memory was 81.1MB in the beginning and 62.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.38ms. Allocated memory is still 176.2MB. Free memory is still 62.2MB. 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 64, overapproximation of bitwiseAnd at line 69. 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_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 3); [L29] const SORT_23 msb_SORT_23 = (SORT_23)1 << (3 - 1); [L31] const SORT_1 var_3 = 0; [L32] const SORT_1 var_9 = 1; [L34] SORT_1 input_2; [L36] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L37] SORT_1 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L38] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L39] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L40] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L41] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L42] SORT_23 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L43] SORT_23 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L44] SORT_23 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L46] SORT_1 init_5_arg_1 = var_3; [L47] state_4 = init_5_arg_1 [L48] SORT_1 init_14_arg_1 = var_9; [L49] state_13 = init_14_arg_1 [L50] SORT_1 init_16_arg_1 = var_3; [L51] state_15 = init_16_arg_1 [L52] SORT_1 init_18_arg_1 = var_3; [L53] state_17 = init_18_arg_1 [L54] SORT_1 init_20_arg_1 = var_3; [L55] state_19 = init_20_arg_1 [L56] SORT_1 init_22_arg_1 = var_9; [L57] state_21 = init_22_arg_1 VAL [init_14_arg_1=1, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=1, init_5_arg_1=0, mask_SORT_1=1, mask_SORT_23=7, msb_SORT_1=1, msb_SORT_23=4, state_13=1, state_15=0, state_17=0, state_19=0, state_21=1, state_24=0, state_25=0, state_26=0, state_4=0, var_3=0, var_9=1] [L60] input_2 = __VERIFIER_nondet_uchar() [L63] SORT_1 var_6_arg_0 = state_4; [L64] SORT_1 var_6 = ~var_6_arg_0; [L65] SORT_1 var_10_arg_0 = var_6; [L66] SORT_1 var_10 = ~var_10_arg_0; [L67] SORT_1 var_11_arg_0 = var_9; [L68] SORT_1 var_11_arg_1 = var_10; [L69] SORT_1 var_11 = var_11_arg_0 & var_11_arg_1; [L70] var_11 = var_11 & mask_SORT_1 [L71] SORT_1 bad_12_arg_0 = var_11; [L72] CALL __VERIFIER_assert(!(bad_12_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: 0.3s, 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, 0.1s 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 09:08:38,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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_168a868a-83b5-459f-9f41-125cbe186a5e/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 733ceed6be9d24062ba911b31be8a1633ca20a25e8a4a67b98434fc2845023e4 --- 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 09:08:41,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:08:41,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:08:41,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:08:41,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:08:41,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:08:41,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:08:41,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:08:41,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:08:41,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:08:41,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:08:41,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:08:41,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:08:41,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:08:41,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:08:41,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:08:41,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:08:41,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:08:41,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:08:41,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:08:41,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:08:41,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:08:41,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:08:41,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:08:41,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:08:41,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:08:41,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:08:41,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:08:41,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:08:41,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:08:41,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:08:41,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:08:41,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:08:41,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:08:41,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:08:41,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:08:41,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:08:41,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:08:41,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:08:41,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:08:41,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:08:41,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 09:08:41,374 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:08:41,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:08:41,376 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:08:41,376 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:08:41,377 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:08:41,378 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:08:41,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:08:41,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:08:41,379 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:08:41,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:08:41,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:08:41,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:08:41,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:08:41,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:08:41,382 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 09:08:41,382 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 09:08:41,383 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 09:08:41,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:08:41,383 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:08:41,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:08:41,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:08:41,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:08:41,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:08:41,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:08:41,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:08:41,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:08:41,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:08:41,386 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 09:08:41,386 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 09:08:41,387 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:08:41,387 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:08:41,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:08:41,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 09:08:41,388 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_168a868a-83b5-459f-9f41-125cbe186a5e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 733ceed6be9d24062ba911b31be8a1633ca20a25e8a4a67b98434fc2845023e4 [2022-11-21 09:08:41,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:08:41,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:08:41,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:08:41,838 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:08:41,839 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:08:41,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2022-11-21 09:08:44,990 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:08:45,236 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:08:45,237 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2022-11-21 09:08:45,246 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/data/1af1ba677/19ea342c31b54128b35305959cb2acf1/FLAGb06a31eb8 [2022-11-21 09:08:45,261 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/data/1af1ba677/19ea342c31b54128b35305959cb2acf1 [2022-11-21 09:08:45,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:08:45,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:08:45,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:08:45,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:08:45,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:08:45,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:08:45" (1/1) ... [2022-11-21 09:08:45,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fdb0601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:45, skipping insertion in model container [2022-11-21 09:08:45,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:08:45" (1/1) ... [2022-11-21 09:08:45,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:08:45,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:08:45,441 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_168a868a-83b5-459f-9f41-125cbe186a5e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1107,1120] [2022-11-21 09:08:45,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:08:45,564 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:08:45,579 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_168a868a-83b5-459f-9f41-125cbe186a5e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1107,1120] [2022-11-21 09:08:45,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:08:45,693 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:08:45,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:45 WrapperNode [2022-11-21 09:08:45,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:08:45,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:08:45,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:08:45,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:08:45,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:45" (1/1) ... [2022-11-21 09:08:45,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:45" (1/1) ... [2022-11-21 09:08:45,773 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 267 [2022-11-21 09:08:45,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:08:45,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:08:45,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:08:45,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:08:45,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:45" (1/1) ... [2022-11-21 09:08:45,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:45" (1/1) ... [2022-11-21 09:08:45,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:45" (1/1) ... [2022-11-21 09:08:45,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:45" (1/1) ... [2022-11-21 09:08:45,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:45" (1/1) ... [2022-11-21 09:08:45,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:45" (1/1) ... [2022-11-21 09:08:45,825 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:45" (1/1) ... [2022-11-21 09:08:45,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:45" (1/1) ... [2022-11-21 09:08:45,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:08:45,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:08:45,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:08:45,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:08:45,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:45" (1/1) ... [2022-11-21 09:08:45,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:08:45,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:08:45,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:08:45,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:08:45,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:08:45,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:08:46,145 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:08:46,147 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:08:46,557 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:08:46,564 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:08:46,564 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 09:08:46,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:08:46 BoogieIcfgContainer [2022-11-21 09:08:46,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:08:46,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:08:46,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:08:46,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:08:46,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:08:45" (1/3) ... [2022-11-21 09:08:46,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a41458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:08:46, skipping insertion in model container [2022-11-21 09:08:46,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:08:45" (2/3) ... [2022-11-21 09:08:46,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a41458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:08:46, skipping insertion in model container [2022-11-21 09:08:46,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:08:46" (3/3) ... [2022-11-21 09:08:46,576 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_ball2004_1.c [2022-11-21 09:08:46,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:08:46,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 09:08:46,666 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:08:46,677 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;@bfef18f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:08:46,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 09:08:46,682 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 09:08:46,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 09:08:46,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:08:46,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 09:08:46,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:08:46,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:08:46,699 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 09:08:46,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:08:46,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686705239] [2022-11-21 09:08:46,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:08:46,714 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 09:08:46,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:08:46,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 09:08:46,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 09:08:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:08:46,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-21 09:08:46,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:08:46,991 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 09:08:46,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:08:46,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:08:46,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686705239] [2022-11-21 09:08:46,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686705239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:08:46,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:08:46,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:08:46,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207762697] [2022-11-21 09:08:46,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:08:47,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:08:47,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:08:47,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:08:47,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:08:47,055 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 09:08:47,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:08:47,135 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-21 09:08:47,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:08:47,139 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 09:08:47,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:08:47,148 INFO L225 Difference]: With dead ends: 20 [2022-11-21 09:08:47,148 INFO L226 Difference]: Without dead ends: 11 [2022-11-21 09:08:47,151 INFO L412 NwaCegarLoop]: 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 [2022-11-21 09:08:47,156 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:08:47,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:08:47,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-21 09:08:47,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-21 09:08:47,193 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 09:08:47,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-21 09:08:47,196 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-21 09:08:47,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:08:47,196 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-21 09:08:47,197 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 09:08:47,197 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-21 09:08:47,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 09:08:47,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:08:47,199 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 09:08:47,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 09:08:47,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 09:08:47,417 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:08:47,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:08:47,417 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-21 09:08:47,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:08:47,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389764916] [2022-11-21 09:08:47,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:08:47,420 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 09:08:47,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:08:47,425 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 09:08:47,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 09:08:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:08:47,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-21 09:08:47,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:08:47,803 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 09:08:47,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:08:48,194 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 09:08:48,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:08:48,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389764916] [2022-11-21 09:08:48,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389764916] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:08:48,198 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 09:08:48,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-21 09:08:48,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068699614] [2022-11-21 09:08:48,203 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 09:08:48,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 09:08:48,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:08:48,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 09:08:48,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-21 09:08:48,208 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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 09:08:48,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:08:48,348 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-21 09:08:48,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 09:08:48,350 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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 [2022-11-21 09:08:48,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:08:48,350 INFO L225 Difference]: With dead ends: 16 [2022-11-21 09:08:48,350 INFO L226 Difference]: Without dead ends: 14 [2022-11-21 09:08:48,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:08:48,352 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:08:48,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 15 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:08:48,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-21 09:08:48,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-21 09:08:48,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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 09:08:48,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-21 09:08:48,361 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-21 09:08:48,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:08:48,361 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-21 09:08:48,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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 09:08:48,362 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-21 09:08:48,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 09:08:48,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:08:48,363 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-21 09:08:48,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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)] Forceful destruction successful, exit code 0 [2022-11-21 09:08:48,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 09:08:48,581 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:08:48,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:08:48,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-21 09:08:48,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:08:48,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919843670] [2022-11-21 09:08:48,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 09:08:48,583 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 09:08:48,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:08:48,590 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 09:08:48,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 (4)] Waiting until timeout for monitored process [2022-11-21 09:08:48,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 09:08:48,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 09:08:48,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 82 conjunts are in the unsatisfiable core [2022-11-21 09:08:48,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:08:49,254 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:08:49,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:08:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:08:50,080 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:08:50,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919843670] [2022-11-21 09:08:50,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919843670] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:08:50,083 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 09:08:50,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-21 09:08:50,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102622366] [2022-11-21 09:08:50,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 09:08:50,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 09:08:50,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:08:50,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 09:08:50,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:08:50,090 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 09:08:50,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:08:50,289 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-21 09:08:50,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 09:08:50,291 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 11 [2022-11-21 09:08:50,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:08:50,292 INFO L225 Difference]: With dead ends: 19 [2022-11-21 09:08:50,292 INFO L226 Difference]: Without dead ends: 17 [2022-11-21 09:08:50,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:08:50,293 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:08:50,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 22 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:08:50,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-21 09:08:50,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-21 09:08:50,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 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) [2022-11-21 09:08:50,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-21 09:08:50,299 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-21 09:08:50,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:08:50,299 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-21 09:08:50,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 09:08:50,302 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-21 09:08:50,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 09:08:50,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:08:50,303 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-21 09:08:50,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 (4)] Forceful destruction successful, exit code 0 [2022-11-21 09:08:50,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 09:08:50,504 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:08:50,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:08:50,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-21 09:08:50,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:08:50,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250071971] [2022-11-21 09:08:50,506 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 09:08:50,506 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 09:08:50,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:08:50,507 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 09:08:50,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 (5)] Waiting until timeout for monitored process [2022-11-21 09:08:50,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-21 09:08:50,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 09:08:50,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 152 conjunts are in the unsatisfiable core [2022-11-21 09:08:50,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:10:14,946 WARN L233 SmtUtils]: Spent 1.38m on a formula simplification. DAG size of input: 200 DAG size of output: 196 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:10:41,714 WARN L233 SmtUtils]: Spent 26.27s on a formula simplification that was a NOOP. DAG size: 209 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:11:21,181 WARN L233 SmtUtils]: Spent 38.99s on a formula simplification that was a NOOP. DAG size: 202 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:11:43,277 WARN L233 SmtUtils]: Spent 11.45s on a formula simplification. DAG size of input: 206 DAG size of output: 26 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:11:43,399 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:11:43,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:12:03,788 WARN L233 SmtUtils]: Spent 9.22s on a formula simplification. DAG size of input: 349 DAG size of output: 302 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:12:04,099 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:12:04,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:12:04,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250071971] [2022-11-21 09:12:04,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250071971] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:12:04,100 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 09:12:04,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-11-21 09:12:04,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270789074] [2022-11-21 09:12:04,101 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 09:12:04,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-21 09:12:04,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:12:04,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-21 09:12:04,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=193, Unknown=5, NotChecked=0, Total=240 [2022-11-21 09:12:04,103 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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 09:14:26,225 WARN L233 SmtUtils]: Spent 2.36m on a formula simplification. DAG size of input: 278 DAG size of output: 160 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:17:18,049 WARN L233 SmtUtils]: Spent 2.86m on a formula simplification. DAG size of input: 285 DAG size of output: 167 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:17:48,641 WARN L233 SmtUtils]: Spent 30.26s on a formula simplification. DAG size of input: 291 DAG size of output: 185 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:17:50,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-21 09:17:52,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-21 09:19:33,175 WARN L233 SmtUtils]: Spent 1.60m on a formula simplification. DAG size of input: 284 DAG size of output: 216 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:19:35,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-11-21 09:21:13,571 WARN L233 SmtUtils]: Spent 1.47m on a formula simplification. DAG size of input: 342 DAG size of output: 216 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:22:48,435 WARN L233 SmtUtils]: Spent 1.39m on a formula simplification. DAG size of input: 275 DAG size of output: 211 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:22:50,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-21 09:22:52,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-21 09:22:53,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:22:53,198 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-21 09:22:53,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 09:22:53,199 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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 14 [2022-11-21 09:22:53,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:22:53,199 INFO L225 Difference]: With dead ends: 22 [2022-11-21 09:22:53,199 INFO L226 Difference]: Without dead ends: 20 [2022-11-21 09:22:53,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 826.1s TimeCoverageRelationStatistics Valid=130, Invalid=360, Unknown=16, NotChecked=0, Total=506 [2022-11-21 09:22:53,201 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 32 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 11 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:22:53,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 40 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 49 Invalid, 5 Unknown, 0 Unchecked, 11.2s Time] [2022-11-21 09:22:53,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-21 09:22:53,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-21 09:22:53,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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 09:22:53,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-21 09:22:53,210 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-11-21 09:22:53,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:22:53,210 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-21 09:22:53,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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 09:22:53,211 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-21 09:22:53,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-21 09:22:53,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:22:53,212 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-21 09:22:53,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 (5)] Forceful destruction successful, exit code 0 [2022-11-21 09:22:53,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 09:22:53,416 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:22:53,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:22:53,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-11-21 09:22:53,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:22:53,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967797226] [2022-11-21 09:22:53,418 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-21 09:22:53,418 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 09:22:53,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:22:53,420 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 09:22:53,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168a868a-83b5-459f-9f41-125cbe186a5e/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 (6)] Waiting until timeout for monitored process [2022-11-21 09:22:53,747 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-21 09:22:53,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 09:22:53,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 223 conjunts are in the unsatisfiable core [2022-11-21 09:22:53,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:23:02,995 WARN L233 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:23:11,245 WARN L233 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 147 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:23:19,533 WARN L233 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:23:28,260 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 165 DAG size of output: 143 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:23:28,413 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:23:28,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:23:35,806 WARN L233 SmtUtils]: Spent 6.38s on a formula simplification. DAG size of input: 221 DAG size of output: 219 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:23:55,209 WARN L233 SmtUtils]: Spent 14.90s on a formula simplification. DAG size of input: 457 DAG size of output: 358 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)