./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94a3c9718d8b0819c3a22a45f77fd4dac96406e3aa7eff964888695d6121efac --- 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-e04fb08 [2022-11-16 12:53:03,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:53:03,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:53:03,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:53:03,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:53:03,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:53:03,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:53:03,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:53:03,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:53:03,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:53:03,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:53:03,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:53:03,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:53:03,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:53:03,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:53:03,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:53:03,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:53:03,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:53:03,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:53:03,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:53:03,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:53:03,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:53:03,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:53:03,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:53:03,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:53:03,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:53:03,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:53:03,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:53:03,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:53:03,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:53:03,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:53:03,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:53:03,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:53:03,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:53:04,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:53:04,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:53:04,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:53:04,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:53:04,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:53:04,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:53:04,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:53:04,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:53:04,045 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:53:04,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:53:04,046 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:53:04,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:53:04,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:53:04,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:53:04,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:53:04,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:53:04,048 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:53:04,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:53:04,050 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:53:04,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:53:04,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:53:04,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:53:04,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:53:04,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:53:04,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:53:04,051 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:53:04,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:53:04,051 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:53:04,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:53:04,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:53:04,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:53:04,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:53:04,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:53:04,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:53:04,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:53:04,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:53:04,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:53:04,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:53:04,055 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:53:04,055 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:53:04,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:53:04,056 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_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94a3c9718d8b0819c3a22a45f77fd4dac96406e3aa7eff964888695d6121efac [2022-11-16 12:53:04,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:53:04,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:53:04,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:53:04,345 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:53:04,346 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:53:04,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c [2022-11-16 12:53:04,414 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/data/462501014/9808312038ff4b4ea32db97b4a42f939/FLAG59793aa0d [2022-11-16 12:53:04,838 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:53:04,838 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c [2022-11-16 12:53:04,845 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/data/462501014/9808312038ff4b4ea32db97b4a42f939/FLAG59793aa0d [2022-11-16 12:53:05,243 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/data/462501014/9808312038ff4b4ea32db97b4a42f939 [2022-11-16 12:53:05,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:53:05,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:53:05,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:53:05,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:53:05,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:53:05,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:53:05" (1/1) ... [2022-11-16 12:53:05,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@524e03a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:05, skipping insertion in model container [2022-11-16 12:53:05,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:53:05" (1/1) ... [2022-11-16 12:53:05,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:53:05,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:53:05,497 WARN L229 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_17bc1296-edea-48c2-8e57-0d3875a8a906/sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c[414,427] [2022-11-16 12:53:05,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:53:05,520 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:53:05,534 WARN L229 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_17bc1296-edea-48c2-8e57-0d3875a8a906/sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c[414,427] [2022-11-16 12:53:05,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:53:05,554 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:53:05,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:05 WrapperNode [2022-11-16 12:53:05,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:53:05,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:53:05,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:53:05,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:53:05,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:05" (1/1) ... [2022-11-16 12:53:05,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:05" (1/1) ... [2022-11-16 12:53:05,587 INFO L138 Inliner]: procedures = 15, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2022-11-16 12:53:05,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:53:05,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:53:05,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:53:05,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:53:05,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:05" (1/1) ... [2022-11-16 12:53:05,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:05" (1/1) ... [2022-11-16 12:53:05,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:05" (1/1) ... [2022-11-16 12:53:05,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:05" (1/1) ... [2022-11-16 12:53:05,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:05" (1/1) ... [2022-11-16 12:53:05,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:05" (1/1) ... [2022-11-16 12:53:05,609 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:05" (1/1) ... [2022-11-16 12:53:05,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:05" (1/1) ... [2022-11-16 12:53:05,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:53:05,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:53:05,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:53:05,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:53:05,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:05" (1/1) ... [2022-11-16 12:53:05,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:53:05,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:53:05,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:53:05,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:53:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:53:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:53:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:53:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:53:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:53:05,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:53:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:53:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:53:05,764 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:53:05,766 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:53:05,982 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:53:05,988 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:53:05,988 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 12:53:05,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:53:05 BoogieIcfgContainer [2022-11-16 12:53:05,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:53:06,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:53:06,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:53:06,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:53:06,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:53:05" (1/3) ... [2022-11-16 12:53:06,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3c9f90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:53:06, skipping insertion in model container [2022-11-16 12:53:06,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:05" (2/3) ... [2022-11-16 12:53:06,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3c9f90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:53:06, skipping insertion in model container [2022-11-16 12:53:06,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:53:05" (3/3) ... [2022-11-16 12:53:06,024 INFO L112 eAbstractionObserver]: Analyzing ICFG array_init_pair_symmetr.c [2022-11-16 12:53:06,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:53:06,043 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:53:06,106 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:53:06,113 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;@69e0f07c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:53:06,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:53:06,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.5) internal successors, (27), 19 states have internal predecessors, (27), 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) [2022-11-16 12:53:06,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:53:06,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:53:06,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:53:06,146 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:53:06,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:06,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1143788744, now seen corresponding path program 1 times [2022-11-16 12:53:06,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:06,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117177981] [2022-11-16 12:53:06,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:06,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:06,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:53:06,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:53:06,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117177981] [2022-11-16 12:53:06,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117177981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:53:06,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:53:06,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:53:06,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706063230] [2022-11-16 12:53:06,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:53:06,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:53:06,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:53:06,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:53:06,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:53:06,374 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.5) internal successors, (27), 19 states have internal predecessors, (27), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-16 12:53:06,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:53:06,394 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2022-11-16 12:53:06,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:53:06,398 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 12:53:06,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:53:06,407 INFO L225 Difference]: With dead ends: 38 [2022-11-16 12:53:06,407 INFO L226 Difference]: Without dead ends: 16 [2022-11-16 12:53:06,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:53:06,418 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:53:06,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:53:06,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-16 12:53:06,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-16 12:53:06,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 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) [2022-11-16 12:53:06,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-11-16 12:53:06,458 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 9 [2022-11-16 12:53:06,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:53:06,459 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-11-16 12:53:06,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-16 12:53:06,460 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-11-16 12:53:06,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:53:06,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:53:06,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:53:06,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:53:06,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:53:06,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:06,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1809365643, now seen corresponding path program 1 times [2022-11-16 12:53:06,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:06,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4892839] [2022-11-16 12:53:06,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:06,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:06,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:53:06,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:53:06,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4892839] [2022-11-16 12:53:06,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4892839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:53:06,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:53:06,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:53:06,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679030159] [2022-11-16 12:53:06,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:53:06,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:53:06,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:53:06,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:53:06,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:53:06,692 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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) [2022-11-16 12:53:06,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:53:06,741 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2022-11-16 12:53:06,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:53:06,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 12:53:06,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:53:06,742 INFO L225 Difference]: With dead ends: 32 [2022-11-16 12:53:06,742 INFO L226 Difference]: Without dead ends: 22 [2022-11-16 12:53:06,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:53:06,764 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 22 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:53:06,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 14 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:53:06,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-16 12:53:06,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2022-11-16 12:53:06,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 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) [2022-11-16 12:53:06,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-11-16 12:53:06,771 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2022-11-16 12:53:06,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:53:06,772 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-11-16 12:53:06,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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) [2022-11-16 12:53:06,772 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-16 12:53:06,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 12:53:06,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:53:06,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:53:06,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:53:06,774 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:53:06,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:06,775 INFO L85 PathProgramCache]: Analyzing trace with hash 129067660, now seen corresponding path program 1 times [2022-11-16 12:53:06,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:06,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214006711] [2022-11-16 12:53:06,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:06,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:07,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:53:07,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:53:07,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214006711] [2022-11-16 12:53:07,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214006711] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:53:07,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610282622] [2022-11-16 12:53:07,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:07,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:53:07,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:53:07,062 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:53:07,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:53:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:07,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:53:07,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:53:07,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:53:07,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:53:07,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:53:07,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610282622] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:53:07,373 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:53:07,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-11-16 12:53:07,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692625886] [2022-11-16 12:53:07,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:53:07,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:53:07,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:53:07,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:53:07,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:53:07,382 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 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) [2022-11-16 12:53:07,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:53:07,506 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2022-11-16 12:53:07,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:53:07,507 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-16 12:53:07,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:53:07,508 INFO L225 Difference]: With dead ends: 60 [2022-11-16 12:53:07,508 INFO L226 Difference]: Without dead ends: 49 [2022-11-16 12:53:07,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:53:07,510 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 118 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:53:07,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 28 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:53:07,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-16 12:53:07,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 36. [2022-11-16 12:53:07,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 35 states have internal predecessors, (38), 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) [2022-11-16 12:53:07,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2022-11-16 12:53:07,524 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 15 [2022-11-16 12:53:07,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:53:07,524 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2022-11-16 12:53:07,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 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) [2022-11-16 12:53:07,525 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2022-11-16 12:53:07,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 12:53:07,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:53:07,526 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:53:07,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:53:07,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:53:07,732 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:53:07,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:07,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1998403887, now seen corresponding path program 2 times [2022-11-16 12:53:07,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:07,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651027207] [2022-11-16 12:53:07,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:07,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:08,131 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 12:53:08,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:53:08,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651027207] [2022-11-16 12:53:08,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651027207] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:53:08,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913454649] [2022-11-16 12:53:08,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:53:08,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:53:08,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:53:08,138 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:53:08,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:53:08,259 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:53:08,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:53:08,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:53:08,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:53:08,475 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 12:53:08,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:53:08,617 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 12:53:08,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913454649] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:53:08,618 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:53:08,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2022-11-16 12:53:08,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593045583] [2022-11-16 12:53:08,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:53:08,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 12:53:08,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:53:08,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 12:53:08,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=195, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:53:08,623 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 18 states have internal predecessors, (64), 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) [2022-11-16 12:53:08,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:53:08,953 INFO L93 Difference]: Finished difference Result 138 states and 153 transitions. [2022-11-16 12:53:08,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:53:08,954 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 18 states have internal predecessors, (64), 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 33 [2022-11-16 12:53:08,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:53:08,956 INFO L225 Difference]: With dead ends: 138 [2022-11-16 12:53:08,956 INFO L226 Difference]: Without dead ends: 121 [2022-11-16 12:53:08,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=222, Invalid=330, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:53:08,957 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 325 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:53:08,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 73 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:53:08,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-16 12:53:08,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 72. [2022-11-16 12:53:08,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.0422535211267605) internal successors, (74), 71 states have internal predecessors, (74), 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) [2022-11-16 12:53:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2022-11-16 12:53:08,977 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 33 [2022-11-16 12:53:08,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:53:08,978 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2022-11-16 12:53:08,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 18 states have internal predecessors, (64), 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) [2022-11-16 12:53:08,979 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2022-11-16 12:53:08,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 12:53:08,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:53:08,981 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:53:08,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:53:09,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:53:09,187 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:53:09,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:09,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1388546523, now seen corresponding path program 3 times [2022-11-16 12:53:09,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:09,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636626427] [2022-11-16 12:53:09,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:09,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:09,822 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-16 12:53:09,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:53:09,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636626427] [2022-11-16 12:53:09,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636626427] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:53:09,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294818278] [2022-11-16 12:53:09,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:53:09,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:53:09,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:53:09,831 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:53:09,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:53:14,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-16 12:53:14,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:53:14,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:53:14,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:53:15,029 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-16 12:53:15,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:53:15,412 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-16 12:53:15,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294818278] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:53:15,412 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:53:15,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 36 [2022-11-16 12:53:15,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539935055] [2022-11-16 12:53:15,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:53:15,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-16 12:53:15,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:53:15,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-16 12:53:15,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=753, Unknown=0, NotChecked=0, Total=1332 [2022-11-16 12:53:15,416 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 37 states, 37 states have (on average 2.918918918918919) internal successors, (108), 36 states have internal predecessors, (108), 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) [2022-11-16 12:53:16,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:53:16,160 INFO L93 Difference]: Finished difference Result 294 states and 321 transitions. [2022-11-16 12:53:16,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 12:53:16,160 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.918918918918919) internal successors, (108), 36 states have internal predecessors, (108), 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 69 [2022-11-16 12:53:16,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:53:16,165 INFO L225 Difference]: With dead ends: 294 [2022-11-16 12:53:16,166 INFO L226 Difference]: Without dead ends: 265 [2022-11-16 12:53:16,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=876, Invalid=1380, Unknown=0, NotChecked=0, Total=2256 [2022-11-16 12:53:16,169 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 791 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:53:16,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 143 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:53:16,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-11-16 12:53:16,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 144. [2022-11-16 12:53:16,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.020979020979021) internal successors, (146), 143 states have internal predecessors, (146), 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) [2022-11-16 12:53:16,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 146 transitions. [2022-11-16 12:53:16,205 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 146 transitions. Word has length 69 [2022-11-16 12:53:16,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:53:16,205 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 146 transitions. [2022-11-16 12:53:16,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.918918918918919) internal successors, (108), 36 states have internal predecessors, (108), 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) [2022-11-16 12:53:16,206 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 146 transitions. [2022-11-16 12:53:16,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-16 12:53:16,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:53:16,215 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:53:16,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:53:16,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:53:16,419 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:53:16,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:16,420 INFO L85 PathProgramCache]: Analyzing trace with hash 552270319, now seen corresponding path program 4 times [2022-11-16 12:53:16,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:16,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189768429] [2022-11-16 12:53:16,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:16,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:17,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-11-16 12:53:17,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:53:17,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189768429] [2022-11-16 12:53:17,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189768429] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:53:17,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564233432] [2022-11-16 12:53:17,894 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:53:17,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:53:17,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:53:17,895 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:53:17,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:53:18,237 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:53:18,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:53:18,251 WARN L261 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 327 conjunts are in the unsatisfiable core [2022-11-16 12:53:18,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:53:18,347 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 12:53:18,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 28 [2022-11-16 12:53:18,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:18,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 33 [2022-11-16 12:53:18,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-16 12:53:18,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-16 12:53:18,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:18,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:18,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:18,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:18,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:18,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:19,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:19,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:19,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:19,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:19,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:19,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:19,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:19,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:19,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:19,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:19,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:19,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:19,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:19,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:19,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:19,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:19,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:19,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:20,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:20,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:20,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:20,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:20,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:20,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:20,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:20,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:20,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:20,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:20,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:20,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:20,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:20,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:20,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:20,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:20,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:20,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:21,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:21,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:21,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:21,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:21,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:21,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:21,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:21,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:21,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:21,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:21,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:21,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:21,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:21,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:21,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2022-11-16 12:53:22,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 42 [2022-11-16 12:53:22,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 29 [2022-11-16 12:53:22,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 37 [2022-11-16 12:53:22,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 54 [2022-11-16 12:53:22,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:22,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:23,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:23,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:23,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:23,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:23,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:23,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:23,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:23,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:23,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:23,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:23,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:23,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:23,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:23,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:24,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:24,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:24,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:24,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:24,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:24,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:24,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:24,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:24,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:24,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:25,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:25,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:25,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:25,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:25,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:25,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:25,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:25,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:25,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:53:25,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-16 12:53:25,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 41 [2022-11-16 12:53:26,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:53:26,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:53:48,132 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_819 Int) (v_ArrVal_829 Int) (v_ArrVal_816 Int) (v_ArrVal_838 Int) (v_ArrVal_826 Int) (v_ArrVal_848 Int) (v_ArrVal_836 Int) (v_ArrVal_824 Int) (v_ArrVal_846 Int) (v_ArrVal_834 Int) (v_ArrVal_822 Int) (v_ArrVal_844 Int) (v_ArrVal_821 Int) (v_ArrVal_832 Int) (v_ArrVal_843 Int) (v_ArrVal_854 Int) (v_ArrVal_831 Int) (v_ArrVal_853 Int) (v_ArrVal_841 Int) (v_ArrVal_851 Int) (v_ArrVal_813 (Array Int Int))) (= (select (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store v_ArrVal_813 (+ |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0 4) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#c~0#1.base| v_ArrVal_813))) (+ (select (select .cse1 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse0 |c_ULTIMATE.start_main_~#a~0#1.offset| 4)) (select (select .cse1 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse0 4))))) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0 8) v_ArrVal_816) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0 12) v_ArrVal_819) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0 16) v_ArrVal_821) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0 20) v_ArrVal_822) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0 24) v_ArrVal_824) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0 28) v_ArrVal_826) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| 32 .cse0) v_ArrVal_829) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0 36) v_ArrVal_831) (+ 40 |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0) v_ArrVal_832) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| 44 .cse0) v_ArrVal_834) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0 48) v_ArrVal_836) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0 52) v_ArrVal_838) (+ 56 |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0) v_ArrVal_841) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0 60) v_ArrVal_843) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| 64 .cse0) v_ArrVal_844) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0 68) v_ArrVal_846) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0 72) v_ArrVal_848) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| 76 .cse0) v_ArrVal_851) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0 80) v_ArrVal_853) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| .cse0 84) v_ArrVal_854)) (+ |c_ULTIMATE.start_main_~#c~0#1.offset| 4)) 0)) is different from false [2022-11-16 12:53:48,159 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_813 (Array Int Int))) (= (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#c~0#1.base| v_ArrVal_813))) (+ (select (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 4)) (select (select .cse0 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| 4)))) 0)) is different from false [2022-11-16 12:53:52,839 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~x~0#1| Int) (v_ArrVal_813 (Array Int Int)) (v_ArrVal_810 Int)) (= (let ((.cse0 (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 4) |ULTIMATE.start_main_~x~0#1|)))) (store .cse1 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 4) v_ArrVal_810)))) |c_ULTIMATE.start_main_~#c~0#1.base| v_ArrVal_813))) (+ (select (select .cse0 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| 4)) (select (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 4)))) 0)) is different from false [2022-11-16 12:53:52,868 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~x~0#1| Int) (|v_ULTIMATE.start_main_~x~0#1_23| Int) (v_ArrVal_813 (Array Int Int)) (v_ArrVal_801 Int) (v_ArrVal_810 Int)) (= (let ((.cse0 (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (let ((.cse3 (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset|) |ULTIMATE.start_main_~x~0#1|)))) (store .cse4 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2) v_ArrVal_801))))) (store .cse3 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 4) |v_ULTIMATE.start_main_~x~0#1_23|))))) (store .cse1 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 4) v_ArrVal_810)))) |c_ULTIMATE.start_main_~#c~0#1.base| v_ArrVal_813))) (+ (select (select .cse0 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| 4)) (select (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 4)))) 0)) is different from false [2022-11-16 12:53:52,927 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~x~0#1| Int) (|v_ULTIMATE.start_main_~x~0#1_23| Int) (v_ArrVal_813 (Array Int Int)) (v_ArrVal_801 Int) (v_ArrVal_810 Int)) (= (let ((.cse0 (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (let ((.cse3 (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 4) |ULTIMATE.start_main_~x~0#1|)))) (store .cse4 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 4) v_ArrVal_801))))) (store .cse3 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 8) |v_ULTIMATE.start_main_~x~0#1_23|))))) (store .cse1 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 8) v_ArrVal_810)))) |c_ULTIMATE.start_main_~#c~0#1.base| v_ArrVal_813))) (+ (select (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 4)) (select (select .cse0 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| 4)))) 0)) is different from false [2022-11-16 12:53:53,023 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~x~0#1| Int) (|v_ULTIMATE.start_main_~x~0#1_23| Int) (v_ArrVal_813 (Array Int Int)) (|v_ULTIMATE.start_main_~x~0#1_25| Int) (v_ArrVal_801 Int) (v_ArrVal_799 Int) (v_ArrVal_810 Int)) (= (let ((.cse0 (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset|) |ULTIMATE.start_main_~x~0#1|)))) (store .cse6 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse6 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2) v_ArrVal_799))))) (store .cse5 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 4) |v_ULTIMATE.start_main_~x~0#1_25|))))) (store .cse4 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 4) v_ArrVal_801))))) (store .cse3 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 8) |v_ULTIMATE.start_main_~x~0#1_23|))))) (store .cse1 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 8) v_ArrVal_810)))) |c_ULTIMATE.start_main_~#c~0#1.base| v_ArrVal_813))) (+ (select (select .cse0 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| 4)) (select (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 4)))) 0)) is different from false [2022-11-16 12:53:53,162 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~x~0#1| Int) (|v_ULTIMATE.start_main_~x~0#1_23| Int) (v_ArrVal_813 (Array Int Int)) (|v_ULTIMATE.start_main_~x~0#1_25| Int) (v_ArrVal_801 Int) (v_ArrVal_799 Int) (v_ArrVal_810 Int)) (= (let ((.cse0 (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 4) |ULTIMATE.start_main_~x~0#1|)))) (store .cse6 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse6 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 4) v_ArrVal_799))))) (store .cse5 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 8) |v_ULTIMATE.start_main_~x~0#1_25|))))) (store .cse4 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 8) v_ArrVal_801))))) (store .cse3 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 12) |v_ULTIMATE.start_main_~x~0#1_23|))))) (store .cse1 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 12) v_ArrVal_810)))) |c_ULTIMATE.start_main_~#c~0#1.base| v_ArrVal_813))) (+ (select (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 4)) (select (select .cse0 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| 4)))) 0)) is different from false [2022-11-16 12:54:55,544 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_786 Int) (|v_ULTIMATE.start_main_~x~0#1_27| Int) (|ULTIMATE.start_main_~x~0#1| Int) (|v_ULTIMATE.start_main_~x~0#1_29| Int) (|v_ULTIMATE.start_main_~x~0#1_23| Int) (v_ArrVal_813 (Array Int Int)) (v_ArrVal_791 Int) (|v_ULTIMATE.start_main_~x~0#1_25| Int) (v_ArrVal_801 Int) (v_ArrVal_799 Int) (v_ArrVal_810 Int)) (= (let ((.cse0 (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 (let ((.cse8 (let ((.cse9 (let ((.cse10 (store |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset|) |ULTIMATE.start_main_~x~0#1|)))) (store .cse10 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2) v_ArrVal_786))))) (store .cse9 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse9 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 4) |v_ULTIMATE.start_main_~x~0#1_29|))))) (store .cse8 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse8 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 4) v_ArrVal_791))))) (store .cse7 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse7 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 8) |v_ULTIMATE.start_main_~x~0#1_27|))))) (store .cse6 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse6 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 8) v_ArrVal_799))))) (store .cse5 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 12) |v_ULTIMATE.start_main_~x~0#1_25|))))) (store .cse4 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 12) v_ArrVal_801))))) (store .cse3 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 16) |v_ULTIMATE.start_main_~x~0#1_23|))))) (store .cse1 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 16) v_ArrVal_810)))) |c_ULTIMATE.start_main_~#c~0#1.base| v_ArrVal_813))) (+ (select (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 4)) (select (select .cse0 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| 4)))) 0)) is different from false [2022-11-16 12:55:00,236 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_786 Int) (|v_ULTIMATE.start_main_~x~0#1_27| Int) (|ULTIMATE.start_main_~x~0#1| Int) (|v_ULTIMATE.start_main_~x~0#1_29| Int) (|v_ULTIMATE.start_main_~x~0#1_23| Int) (v_ArrVal_813 (Array Int Int)) (v_ArrVal_791 Int) (|v_ULTIMATE.start_main_~x~0#1_25| Int) (v_ArrVal_801 Int) (v_ArrVal_799 Int) (v_ArrVal_810 Int)) (= (let ((.cse0 (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 (let ((.cse8 (let ((.cse9 (let ((.cse10 (store |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 4) |ULTIMATE.start_main_~x~0#1|)))) (store .cse10 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 4) v_ArrVal_786))))) (store .cse9 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse9 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 8) |v_ULTIMATE.start_main_~x~0#1_29|))))) (store .cse8 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse8 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 8) v_ArrVal_791))))) (store .cse7 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse7 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 12) |v_ULTIMATE.start_main_~x~0#1_27|))))) (store .cse6 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse6 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 12) v_ArrVal_799))))) (store .cse5 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 16) |v_ULTIMATE.start_main_~x~0#1_25|))))) (store .cse4 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 16) v_ArrVal_801))))) (store .cse3 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 20) |v_ULTIMATE.start_main_~x~0#1_23|))))) (store .cse1 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 20) v_ArrVal_810)))) |c_ULTIMATE.start_main_~#c~0#1.base| v_ArrVal_813))) (+ (select (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 4)) (select (select .cse0 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| 4)))) 0)) is different from false [2022-11-16 12:56:10,328 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~x~0#1_31| Int) (v_ArrVal_779 Int) (v_ArrVal_801 Int) (v_ArrVal_799 Int) (v_ArrVal_810 Int) (v_ArrVal_786 Int) (|v_ULTIMATE.start_main_~x~0#1_27| Int) (|ULTIMATE.start_main_~x~0#1| Int) (|v_ULTIMATE.start_main_~x~0#1_29| Int) (|v_ULTIMATE.start_main_~x~0#1_23| Int) (v_ArrVal_813 (Array Int Int)) (v_ArrVal_791 Int) (|v_ULTIMATE.start_main_~x~0#1_25| Int)) (= (let ((.cse0 (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 (let ((.cse8 (let ((.cse9 (let ((.cse10 (let ((.cse11 (let ((.cse12 (store |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset|) |ULTIMATE.start_main_~x~0#1|)))) (store .cse12 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse12 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2) v_ArrVal_779))))) (store .cse11 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse11 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 4) |v_ULTIMATE.start_main_~x~0#1_31|))))) (store .cse10 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 4) v_ArrVal_786))))) (store .cse9 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse9 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 8) |v_ULTIMATE.start_main_~x~0#1_29|))))) (store .cse8 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse8 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 8) v_ArrVal_791))))) (store .cse7 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse7 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 12) |v_ULTIMATE.start_main_~x~0#1_27|))))) (store .cse6 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse6 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 12) v_ArrVal_799))))) (store .cse5 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 16) |v_ULTIMATE.start_main_~x~0#1_25|))))) (store .cse4 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 16) v_ArrVal_801))))) (store .cse3 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 20) |v_ULTIMATE.start_main_~x~0#1_23|))))) (store .cse1 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 20) v_ArrVal_810)))) |c_ULTIMATE.start_main_~#c~0#1.base| v_ArrVal_813))) (+ (select (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 4)) (select (select .cse0 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| 4)))) 0)) is different from false [2022-11-16 12:57:21,813 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~x~0#1_31| Int) (v_ArrVal_779 Int) (v_ArrVal_801 Int) (v_ArrVal_799 Int) (v_ArrVal_810 Int) (v_ArrVal_786 Int) (|v_ULTIMATE.start_main_~x~0#1_27| Int) (|ULTIMATE.start_main_~x~0#1| Int) (|v_ULTIMATE.start_main_~x~0#1_29| Int) (|v_ULTIMATE.start_main_~x~0#1_23| Int) (v_ArrVal_813 (Array Int Int)) (v_ArrVal_791 Int) (|v_ULTIMATE.start_main_~x~0#1_25| Int)) (= (let ((.cse0 (store (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 (let ((.cse8 (let ((.cse9 (let ((.cse10 (let ((.cse11 (let ((.cse12 (store |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 4) |ULTIMATE.start_main_~x~0#1|)))) (store .cse12 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse12 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 4) v_ArrVal_779))))) (store .cse11 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse11 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 8) |v_ULTIMATE.start_main_~x~0#1_31|))))) (store .cse10 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse10 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 8) v_ArrVal_786))))) (store .cse9 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse9 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 12) |v_ULTIMATE.start_main_~x~0#1_29|))))) (store .cse8 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse8 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 12) v_ArrVal_791))))) (store .cse7 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse7 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 16) |v_ULTIMATE.start_main_~x~0#1_27|))))) (store .cse6 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse6 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 16) v_ArrVal_799))))) (store .cse5 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 20) |v_ULTIMATE.start_main_~x~0#1_25|))))) (store .cse4 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse4 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 20) v_ArrVal_801))))) (store .cse3 |c_ULTIMATE.start_main_~#a~0#1.base| (store (select .cse3 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#a~0#1.offset| 24) |v_ULTIMATE.start_main_~x~0#1_23|))))) (store .cse1 |c_ULTIMATE.start_main_~#b~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| .cse2 24) v_ArrVal_810)))) |c_ULTIMATE.start_main_~#c~0#1.base| v_ArrVal_813))) (+ (select (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 4)) (select (select .cse0 |c_ULTIMATE.start_main_~#b~0#1.base|) (+ |c_ULTIMATE.start_main_~#b~0#1.offset| 4)))) 0)) is different from false [2022-11-16 13:00:26,399 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-16 13:00:26,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2022-11-16 13:00:26,401 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-16 13:00:26,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-16 13:00:26,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 13:00:26,602 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:824) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:768) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 46 more [2022-11-16 13:00:26,606 INFO L158 Benchmark]: Toolchain (without parser) took 441355.74ms. Allocated memory was 130.0MB in the beginning and 293.6MB in the end (delta: 163.6MB). Free memory was 98.0MB in the beginning and 108.9MB in the end (delta: -10.9MB). Peak memory consumption was 153.6MB. Max. memory is 16.1GB. [2022-11-16 13:00:26,606 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 81.8MB. Free memory is still 34.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 13:00:26,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.63ms. Allocated memory is still 130.0MB. Free memory was 97.6MB in the beginning and 105.2MB in the end (delta: -7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 13:00:26,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.43ms. Allocated memory is still 130.0MB. Free memory was 105.2MB in the beginning and 103.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 13:00:26,607 INFO L158 Benchmark]: Boogie Preprocessor took 23.48ms. Allocated memory is still 130.0MB. Free memory was 103.6MB in the beginning and 102.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 13:00:26,607 INFO L158 Benchmark]: RCFGBuilder took 378.21ms. Allocated memory is still 130.0MB. Free memory was 101.9MB in the beginning and 91.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 13:00:26,608 INFO L158 Benchmark]: TraceAbstraction took 440600.83ms. Allocated memory was 130.0MB in the beginning and 293.6MB in the end (delta: 163.6MB). Free memory was 90.1MB in the beginning and 108.9MB in the end (delta: -18.8MB). Peak memory consumption was 146.2MB. Max. memory is 16.1GB. [2022-11-16 13:00:26,609 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 81.8MB. Free memory is still 34.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.63ms. Allocated memory is still 130.0MB. Free memory was 97.6MB in the beginning and 105.2MB in the end (delta: -7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.43ms. Allocated memory is still 130.0MB. Free memory was 105.2MB in the beginning and 103.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.48ms. Allocated memory is still 130.0MB. Free memory was 103.6MB in the beginning and 102.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 378.21ms. Allocated memory is still 130.0MB. Free memory was 101.9MB in the beginning and 91.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 440600.83ms. Allocated memory was 130.0MB in the beginning and 293.6MB in the end (delta: 163.6MB). Free memory was 90.1MB in the beginning and 108.9MB in the end (delta: -18.8MB). Peak memory consumption was 146.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94a3c9718d8b0819c3a22a45f77fd4dac96406e3aa7eff964888695d6121efac --- 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-e04fb08 [2022-11-16 13:00:28,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 13:00:28,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 13:00:28,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 13:00:28,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 13:00:28,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 13:00:28,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 13:00:28,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 13:00:28,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 13:00:28,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 13:00:28,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 13:00:28,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 13:00:28,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 13:00:28,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 13:00:28,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 13:00:28,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 13:00:28,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 13:00:28,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 13:00:28,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 13:00:28,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 13:00:28,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 13:00:28,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 13:00:28,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 13:00:28,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 13:00:28,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 13:00:28,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 13:00:28,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 13:00:28,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 13:00:28,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 13:00:28,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 13:00:28,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 13:00:28,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 13:00:28,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 13:00:28,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 13:00:28,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 13:00:28,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 13:00:28,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 13:00:28,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 13:00:28,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 13:00:28,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 13:00:28,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 13:00:28,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-16 13:00:28,917 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 13:00:28,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 13:00:28,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 13:00:28,919 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 13:00:28,920 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 13:00:28,920 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 13:00:28,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 13:00:28,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 13:00:28,923 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 13:00:28,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 13:00:28,925 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 13:00:28,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 13:00:28,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 13:00:28,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 13:00:28,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 13:00:28,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 13:00:28,927 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 13:00:28,928 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 13:00:28,928 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 13:00:28,928 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 13:00:28,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 13:00:28,929 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 13:00:28,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 13:00:28,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 13:00:28,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 13:00:28,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 13:00:28,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 13:00:28,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 13:00:28,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 13:00:28,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 13:00:28,932 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 13:00:28,933 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 13:00:28,933 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 13:00:28,933 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 13:00:28,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 13:00:28,934 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 13:00:28,934 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_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94a3c9718d8b0819c3a22a45f77fd4dac96406e3aa7eff964888695d6121efac [2022-11-16 13:00:29,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 13:00:29,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 13:00:29,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 13:00:29,392 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 13:00:29,393 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 13:00:29,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c [2022-11-16 13:00:29,470 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/data/630c824d9/99948c6abdaa44698fd28b2c87cfbf54/FLAG3bcced5fb [2022-11-16 13:00:30,026 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 13:00:30,027 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c [2022-11-16 13:00:30,034 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/data/630c824d9/99948c6abdaa44698fd28b2c87cfbf54/FLAG3bcced5fb [2022-11-16 13:00:30,371 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/data/630c824d9/99948c6abdaa44698fd28b2c87cfbf54 [2022-11-16 13:00:30,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 13:00:30,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 13:00:30,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 13:00:30,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 13:00:30,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 13:00:30,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 01:00:30" (1/1) ... [2022-11-16 13:00:30,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c2be44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:00:30, skipping insertion in model container [2022-11-16 13:00:30,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 01:00:30" (1/1) ... [2022-11-16 13:00:30,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 13:00:30,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 13:00:30,560 WARN L229 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_17bc1296-edea-48c2-8e57-0d3875a8a906/sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c[414,427] [2022-11-16 13:00:30,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 13:00:30,590 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 13:00:30,615 WARN L229 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_17bc1296-edea-48c2-8e57-0d3875a8a906/sv-benchmarks/c/array-cav19/array_init_pair_symmetr.c[414,427] [2022-11-16 13:00:30,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 13:00:30,642 INFO L208 MainTranslator]: Completed translation [2022-11-16 13:00:30,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:00:30 WrapperNode [2022-11-16 13:00:30,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 13:00:30,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 13:00:30,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 13:00:30,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 13:00:30,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:00:30" (1/1) ... [2022-11-16 13:00:30,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:00:30" (1/1) ... [2022-11-16 13:00:30,730 INFO L138 Inliner]: procedures = 17, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-11-16 13:00:30,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 13:00:30,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 13:00:30,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 13:00:30,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 13:00:30,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:00:30" (1/1) ... [2022-11-16 13:00:30,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:00:30" (1/1) ... [2022-11-16 13:00:30,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:00:30" (1/1) ... [2022-11-16 13:00:30,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:00:30" (1/1) ... [2022-11-16 13:00:30,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:00:30" (1/1) ... [2022-11-16 13:00:30,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:00:30" (1/1) ... [2022-11-16 13:00:30,779 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:00:30" (1/1) ... [2022-11-16 13:00:30,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:00:30" (1/1) ... [2022-11-16 13:00:30,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 13:00:30,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 13:00:30,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 13:00:30,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 13:00:30,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:00:30" (1/1) ... [2022-11-16 13:00:30,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 13:00:30,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 13:00:30,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 13:00:30,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 13:00:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 13:00:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 13:00:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 13:00:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-16 13:00:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 13:00:30,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 13:00:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 13:00:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 13:00:31,006 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 13:00:31,009 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 13:00:31,351 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 13:00:31,357 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 13:00:31,357 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 13:00:31,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 01:00:31 BoogieIcfgContainer [2022-11-16 13:00:31,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 13:00:31,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 13:00:31,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 13:00:31,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 13:00:31,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 01:00:30" (1/3) ... [2022-11-16 13:00:31,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51307537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 01:00:31, skipping insertion in model container [2022-11-16 13:00:31,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:00:30" (2/3) ... [2022-11-16 13:00:31,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51307537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 01:00:31, skipping insertion in model container [2022-11-16 13:00:31,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 01:00:31" (3/3) ... [2022-11-16 13:00:31,386 INFO L112 eAbstractionObserver]: Analyzing ICFG array_init_pair_symmetr.c [2022-11-16 13:00:31,407 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 13:00:31,408 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 13:00:31,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 13:00:31,472 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;@4863f5b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 13:00:31,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 13:00:31,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.5) internal successors, (27), 19 states have internal predecessors, (27), 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) [2022-11-16 13:00:31,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 13:00:31,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 13:00:31,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 13:00:31,486 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 13:00:31,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 13:00:31,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1143788744, now seen corresponding path program 1 times [2022-11-16 13:00:31,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 13:00:31,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952212809] [2022-11-16 13:00:31,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 13:00:31,532 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 [2022-11-16 13:00:31,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 13:00:31,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 13:00:31,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:00:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:31,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 13:00:31,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 13:00:31,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 13:00:31,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 13:00:31,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 13:00:31,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952212809] [2022-11-16 13:00:31,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952212809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 13:00:31,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 13:00:31,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 13:00:31,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729110974] [2022-11-16 13:00:31,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 13:00:31,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 13:00:31,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 13:00:31,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 13:00:31,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 13:00:31,714 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.5) internal successors, (27), 19 states have internal predecessors, (27), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-16 13:00:31,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 13:00:31,730 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2022-11-16 13:00:31,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 13:00:31,741 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 13:00:31,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 13:00:31,757 INFO L225 Difference]: With dead ends: 38 [2022-11-16 13:00:31,757 INFO L226 Difference]: Without dead ends: 16 [2022-11-16 13:00:31,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 13:00:31,768 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 13:00:31,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 13:00:31,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-16 13:00:31,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-16 13:00:31,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 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) [2022-11-16 13:00:31,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-11-16 13:00:31,828 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 9 [2022-11-16 13:00:31,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 13:00:31,829 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-11-16 13:00:31,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-16 13:00:31,830 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-11-16 13:00:31,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 13:00:31,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 13:00:31,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 13:00:31,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:00:32,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:00:32,033 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 13:00:32,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 13:00:32,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1809365643, now seen corresponding path program 1 times [2022-11-16 13:00:32,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 13:00:32,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066571258] [2022-11-16 13:00:32,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 13:00:32,038 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 [2022-11-16 13:00:32,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 13:00:32,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 13:00:32,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:00:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:32,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 13:00:32,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 13:00:32,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 13:00:32,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 13:00:32,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 13:00:32,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066571258] [2022-11-16 13:00:32,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066571258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 13:00:32,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 13:00:32,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 13:00:32,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063764910] [2022-11-16 13:00:32,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 13:00:32,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 13:00:32,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 13:00:32,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 13:00:32,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 13:00:32,207 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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) [2022-11-16 13:00:32,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 13:00:32,284 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2022-11-16 13:00:32,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 13:00:32,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 13:00:32,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 13:00:32,286 INFO L225 Difference]: With dead ends: 32 [2022-11-16 13:00:32,286 INFO L226 Difference]: Without dead ends: 22 [2022-11-16 13:00:32,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 13:00:32,288 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 22 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 13:00:32,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 14 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 13:00:32,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-16 13:00:32,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2022-11-16 13:00:32,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 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) [2022-11-16 13:00:32,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-11-16 13:00:32,295 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2022-11-16 13:00:32,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 13:00:32,295 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-11-16 13:00:32,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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) [2022-11-16 13:00:32,296 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-16 13:00:32,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 13:00:32,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 13:00:32,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 13:00:32,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:00:32,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:00:32,508 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 13:00:32,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 13:00:32,509 INFO L85 PathProgramCache]: Analyzing trace with hash 129067660, now seen corresponding path program 1 times [2022-11-16 13:00:32,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 13:00:32,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179312327] [2022-11-16 13:00:32,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 13:00:32,510 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 [2022-11-16 13:00:32,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 13:00:32,519 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 13:00:32,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:00:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 13:00:32,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 13:00:32,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 13:00:32,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 13:00:32,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 13:00:32,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 13:00:32,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 13:00:32,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179312327] [2022-11-16 13:00:32,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179312327] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 13:00:32,781 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 13:00:32,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-16 13:00:32,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586165901] [2022-11-16 13:00:32,782 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 13:00:32,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 13:00:32,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 13:00:32,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 13:00:32,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 13:00:32,784 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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) [2022-11-16 13:00:33,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 13:00:33,160 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2022-11-16 13:00:33,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 13:00:33,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-16 13:00:33,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 13:00:33,163 INFO L225 Difference]: With dead ends: 60 [2022-11-16 13:00:33,163 INFO L226 Difference]: Without dead ends: 49 [2022-11-16 13:00:33,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-16 13:00:33,165 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 91 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 13:00:33,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 24 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 13:00:33,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-16 13:00:33,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 36. [2022-11-16 13:00:33,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 35 states have internal predecessors, (38), 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) [2022-11-16 13:00:33,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2022-11-16 13:00:33,196 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 15 [2022-11-16 13:00:33,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 13:00:33,197 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2022-11-16 13:00:33,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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) [2022-11-16 13:00:33,197 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2022-11-16 13:00:33,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 13:00:33,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 13:00:33,199 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 13:00:33,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:00:33,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:00:33,411 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 13:00:33,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 13:00:33,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1998403887, now seen corresponding path program 2 times [2022-11-16 13:00:33,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 13:00:33,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758651386] [2022-11-16 13:00:33,413 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 13:00:33,414 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 [2022-11-16 13:00:33,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 13:00:33,415 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 13:00:33,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:00:33,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 13:00:33,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 13:00:33,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 13:00:33,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 13:00:33,857 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 13:00:33,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 13:00:34,151 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 13:00:34,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 13:00:34,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758651386] [2022-11-16 13:00:34,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [758651386] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 13:00:34,152 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 13:00:34,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-11-16 13:00:34,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529215465] [2022-11-16 13:00:34,152 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 13:00:34,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 13:00:34,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 13:00:34,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 13:00:34,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-16 13:00:34,154 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 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) [2022-11-16 13:00:35,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 13:00:35,128 INFO L93 Difference]: Finished difference Result 138 states and 153 transitions. [2022-11-16 13:00:35,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 13:00:35,130 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 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 33 [2022-11-16 13:00:35,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 13:00:35,131 INFO L225 Difference]: With dead ends: 138 [2022-11-16 13:00:35,131 INFO L226 Difference]: Without dead ends: 121 [2022-11-16 13:00:35,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2022-11-16 13:00:35,134 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 425 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 13:00:35,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 128 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 13:00:35,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-16 13:00:35,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 72. [2022-11-16 13:00:35,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.0422535211267605) internal successors, (74), 71 states have internal predecessors, (74), 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) [2022-11-16 13:00:35,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2022-11-16 13:00:35,156 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 33 [2022-11-16 13:00:35,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 13:00:35,159 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2022-11-16 13:00:35,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 states have internal predecessors, (46), 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) [2022-11-16 13:00:35,160 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2022-11-16 13:00:35,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 13:00:35,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 13:00:35,162 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 13:00:35,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:00:35,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:00:35,367 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 13:00:35,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 13:00:35,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1388546523, now seen corresponding path program 3 times [2022-11-16 13:00:35,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 13:00:35,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201814684] [2022-11-16 13:00:35,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 13:00:35,370 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 [2022-11-16 13:00:35,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 13:00:35,374 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 13:00:35,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:00:36,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-16 13:00:36,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 13:00:36,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 13:00:36,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 13:00:36,658 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-16 13:00:36,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 13:00:37,695 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-16 13:00:37,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 13:00:37,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201814684] [2022-11-16 13:00:37,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201814684] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 13:00:37,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 13:00:37,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2022-11-16 13:00:37,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529354747] [2022-11-16 13:00:37,697 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 13:00:37,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-16 13:00:37,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 13:00:37,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-16 13:00:37,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2022-11-16 13:00:37,699 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 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) [2022-11-16 13:00:41,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 13:00:41,802 INFO L93 Difference]: Finished difference Result 294 states and 321 transitions. [2022-11-16 13:00:41,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 13:00:41,803 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 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 69 [2022-11-16 13:00:41,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 13:00:41,805 INFO L225 Difference]: With dead ends: 294 [2022-11-16 13:00:41,806 INFO L226 Difference]: Without dead ends: 265 [2022-11-16 13:00:41,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=479, Invalid=853, Unknown=0, NotChecked=0, Total=1332 [2022-11-16 13:00:41,808 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 1716 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 13:00:41,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 614 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 13:00:41,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-11-16 13:00:41,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 144. [2022-11-16 13:00:41,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.020979020979021) internal successors, (146), 143 states have internal predecessors, (146), 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) [2022-11-16 13:00:41,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 146 transitions. [2022-11-16 13:00:41,831 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 146 transitions. Word has length 69 [2022-11-16 13:00:41,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 13:00:41,832 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 146 transitions. [2022-11-16 13:00:41,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 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) [2022-11-16 13:00:41,832 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 146 transitions. [2022-11-16 13:00:41,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-16 13:00:41,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 13:00:41,834 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 13:00:41,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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)] Forceful destruction successful, exit code 0 [2022-11-16 13:00:42,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:00:42,056 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 13:00:42,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 13:00:42,057 INFO L85 PathProgramCache]: Analyzing trace with hash 552270319, now seen corresponding path program 4 times [2022-11-16 13:00:42,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 13:00:42,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467835054] [2022-11-16 13:00:42,059 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 13:00:42,059 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 [2022-11-16 13:00:42,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 13:00:42,060 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 13:00:42,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 (7)] Waiting until timeout for monitored process [2022-11-16 13:00:42,552 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 13:00:42,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 13:00:42,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-16 13:00:42,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 13:00:43,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-11-16 13:00:43,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 13:00:46,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-11-16 13:00:46,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 13:00:46,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467835054] [2022-11-16 13:00:46,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [467835054] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 13:00:46,866 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 13:00:46,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 49 [2022-11-16 13:00:46,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941963211] [2022-11-16 13:00:46,867 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 13:00:46,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-16 13:00:46,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 13:00:46,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-16 13:00:46,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=1777, Unknown=0, NotChecked=0, Total=2450 [2022-11-16 13:00:46,872 INFO L87 Difference]: Start difference. First operand 144 states and 146 transitions. Second operand has 50 states, 50 states have (on average 3.8) internal successors, (190), 49 states have internal predecessors, (190), 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) [2022-11-16 13:01:05,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 13:01:05,257 INFO L93 Difference]: Finished difference Result 606 states and 657 transitions. [2022-11-16 13:01:05,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 13:01:05,258 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.8) internal successors, (190), 49 states have internal predecessors, (190), 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 141 [2022-11-16 13:01:05,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 13:01:05,261 INFO L225 Difference]: With dead ends: 606 [2022-11-16 13:01:05,262 INFO L226 Difference]: Without dead ends: 553 [2022-11-16 13:01:05,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 828 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=1823, Invalid=3433, Unknown=0, NotChecked=0, Total=5256 [2022-11-16 13:01:05,265 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 4137 mSDsluCounter, 2552 mSDsCounter, 0 mSdLazyCounter, 3961 mSolverCounterSat, 1101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4137 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 5062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1101 IncrementalHoareTripleChecker+Valid, 3961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-16 13:01:05,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4137 Valid, 2666 Invalid, 5062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1101 Valid, 3961 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2022-11-16 13:01:05,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-11-16 13:01:05,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 288. [2022-11-16 13:01:05,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 287 states have (on average 1.0104529616724738) internal successors, (290), 287 states have internal predecessors, (290), 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) [2022-11-16 13:01:05,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 290 transitions. [2022-11-16 13:01:05,299 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 290 transitions. Word has length 141 [2022-11-16 13:01:05,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 13:01:05,300 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 290 transitions. [2022-11-16 13:01:05,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.8) internal successors, (190), 49 states have internal predecessors, (190), 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) [2022-11-16 13:01:05,301 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 290 transitions. [2022-11-16 13:01:05,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-11-16 13:01:05,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 13:01:05,305 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 13:01:05,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 (7)] Forceful destruction successful, exit code 0 [2022-11-16 13:01:05,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:01:05,524 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 13:01:05,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 13:01:05,524 INFO L85 PathProgramCache]: Analyzing trace with hash 327123479, now seen corresponding path program 5 times [2022-11-16 13:01:05,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 13:01:05,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62933121] [2022-11-16 13:01:05,526 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 13:01:05,526 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 [2022-11-16 13:01:05,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 13:01:05,528 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 13:01:05,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 (8)] Waiting until timeout for monitored process [2022-11-16 13:01:27,373 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-16 13:01:27,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 13:01:27,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-16 13:01:27,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 13:01:30,755 INFO L134 CoverageAnalysis]: Checked inductivity of 6302 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2022-11-16 13:01:30,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 13:01:41,954 INFO L134 CoverageAnalysis]: Checked inductivity of 6302 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2022-11-16 13:01:41,955 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 13:01:41,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62933121] [2022-11-16 13:01:41,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62933121] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 13:01:41,955 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 13:01:41,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 50] total 98 [2022-11-16 13:01:41,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228842491] [2022-11-16 13:01:41,956 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 13:01:41,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-11-16 13:01:41,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 13:01:41,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-11-16 13:01:41,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2547, Invalid=7155, Unknown=0, NotChecked=0, Total=9702 [2022-11-16 13:01:41,962 INFO L87 Difference]: Start difference. First operand 288 states and 290 transitions. Second operand has 99 states, 99 states have (on average 3.8585858585858586) internal successors, (382), 98 states have internal predecessors, (382), 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) [2022-11-16 13:03:57,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 13:03:57,257 INFO L93 Difference]: Finished difference Result 1230 states and 1329 transitions. [2022-11-16 13:03:57,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-11-16 13:03:57,259 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 99 states have (on average 3.8585858585858586) internal successors, (382), 98 states have internal predecessors, (382), 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 285 [2022-11-16 13:03:57,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 13:03:57,264 INFO L225 Difference]: With dead ends: 1230 [2022-11-16 13:03:57,264 INFO L226 Difference]: Without dead ends: 1129 [2022-11-16 13:03:57,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3523 ImplicationChecksByTransitivity, 114.2s TimeCoverageRelationStatistics Valid=7295, Invalid=14167, Unknown=0, NotChecked=0, Total=21462 [2022-11-16 13:03:57,272 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 14057 mSDsluCounter, 10861 mSDsCounter, 0 mSdLazyCounter, 15972 mSolverCounterSat, 4481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14057 SdHoareTripleChecker+Valid, 11095 SdHoareTripleChecker+Invalid, 20453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4481 IncrementalHoareTripleChecker+Valid, 15972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2022-11-16 13:03:57,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14057 Valid, 11095 Invalid, 20453 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4481 Valid, 15972 Invalid, 0 Unknown, 0 Unchecked, 30.7s Time] [2022-11-16 13:03:57,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2022-11-16 13:03:57,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 576. [2022-11-16 13:03:57,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 1.0052173913043478) internal successors, (578), 575 states have internal predecessors, (578), 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) [2022-11-16 13:03:57,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 578 transitions. [2022-11-16 13:03:57,327 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 578 transitions. Word has length 285 [2022-11-16 13:03:57,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 13:03:57,328 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 578 transitions. [2022-11-16 13:03:57,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 3.8585858585858586) internal successors, (382), 98 states have internal predecessors, (382), 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) [2022-11-16 13:03:57,328 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 578 transitions. [2022-11-16 13:03:57,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2022-11-16 13:03:57,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 13:03:57,344 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 13:03:57,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 (8)] Forceful destruction successful, exit code 0 [2022-11-16 13:03:57,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 13:03:57,544 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 13:03:57,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 13:03:57,545 INFO L85 PathProgramCache]: Analyzing trace with hash -886099353, now seen corresponding path program 6 times [2022-11-16 13:03:57,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 13:03:57,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898132848] [2022-11-16 13:03:57,546 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 13:03:57,546 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 [2022-11-16 13:03:57,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 13:03:57,547 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 13:03:57,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc1296-edea-48c2-8e57-0d3875a8a906/bin/uautomizer-tPACEb0tL8/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 (9)] Waiting until timeout for monitored process