./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 7770ba1119c1ebb05279b2f71af570d7d6521032dfc344bf6d89fc60d99335e2 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 06:59:04,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 06:59:04,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 06:59:05,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 06:59:05,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 06:59:05,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 06:59:05,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 06:59:05,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 06:59:05,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 06:59:05,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 06:59:05,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 06:59:05,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 06:59:05,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 06:59:05,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 06:59:05,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 06:59:05,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 06:59:05,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 06:59:05,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 06:59:05,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 06:59:05,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 06:59:05,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 06:59:05,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 06:59:05,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 06:59:05,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 06:59:05,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 06:59:05,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 06:59:05,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 06:59:05,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 06:59:05,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 06:59:05,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 06:59:05,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 06:59:05,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 06:59:05,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 06:59:05,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 06:59:05,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 06:59:05,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 06:59:05,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 06:59:05,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 06:59:05,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 06:59:05,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 06:59:05,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 06:59:05,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-03 06:59:05,080 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 06:59:05,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 06:59:05,080 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 06:59:05,080 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 06:59:05,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 06:59:05,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 06:59:05,081 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 06:59:05,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 06:59:05,082 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 06:59:05,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 06:59:05,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 06:59:05,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 06:59:05,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 06:59:05,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 06:59:05,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 06:59:05,083 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 06:59:05,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 06:59:05,083 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 06:59:05,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 06:59:05,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 06:59:05,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 06:59:05,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 06:59:05,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 06:59:05,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 06:59:05,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 06:59:05,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 06:59:05,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 06:59:05,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 06:59:05,086 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 06:59:05,086 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 06:59:05,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 06:59:05,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 06:59:05,087 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7770ba1119c1ebb05279b2f71af570d7d6521032dfc344bf6d89fc60d99335e2 [2021-11-03 06:59:05,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 06:59:05,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 06:59:05,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 06:59:05,291 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 06:59:05,292 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 06:59:05,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i [2021-11-03 06:59:05,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fe7d9cba/294a6a144e844659bd726b5cf6f2732a/FLAG5a57dc3a7 [2021-11-03 06:59:05,852 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 06:59:05,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i [2021-11-03 06:59:05,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fe7d9cba/294a6a144e844659bd726b5cf6f2732a/FLAG5a57dc3a7 [2021-11-03 06:59:06,314 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fe7d9cba/294a6a144e844659bd726b5cf6f2732a [2021-11-03 06:59:06,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 06:59:06,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 06:59:06,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 06:59:06,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 06:59:06,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 06:59:06,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 06:59:06" (1/1) ... [2021-11-03 06:59:06,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2332ce8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:06, skipping insertion in model container [2021-11-03 06:59:06,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 06:59:06" (1/1) ... [2021-11-03 06:59:06,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 06:59:06,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 06:59:06,606 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[33021,33034] [2021-11-03 06:59:06,725 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[49681,49694] [2021-11-03 06:59:06,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 06:59:06,742 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 06:59:06,762 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[33021,33034] [2021-11-03 06:59:06,812 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[49681,49694] [2021-11-03 06:59:06,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 06:59:06,850 INFO L208 MainTranslator]: Completed translation [2021-11-03 06:59:06,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:06 WrapperNode [2021-11-03 06:59:06,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 06:59:06,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 06:59:06,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 06:59:06,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 06:59:06,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:06" (1/1) ... [2021-11-03 06:59:06,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:06" (1/1) ... [2021-11-03 06:59:06,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 06:59:06,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 06:59:06,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 06:59:06,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 06:59:06,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:06" (1/1) ... [2021-11-03 06:59:06,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:06" (1/1) ... [2021-11-03 06:59:06,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:06" (1/1) ... [2021-11-03 06:59:06,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:06" (1/1) ... [2021-11-03 06:59:07,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:06" (1/1) ... [2021-11-03 06:59:07,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:06" (1/1) ... [2021-11-03 06:59:07,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:06" (1/1) ... [2021-11-03 06:59:07,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 06:59:07,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 06:59:07,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 06:59:07,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 06:59:07,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:06" (1/1) ... [2021-11-03 06:59:07,088 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 06:59:07,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:07,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 06:59:07,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 06:59:07,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 06:59:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 06:59:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 06:59:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 06:59:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 06:59:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 06:59:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 06:59:07,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 06:59:07,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 06:59:07,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 06:59:07,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 06:59:07,781 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 06:59:07,782 INFO L299 CfgBuilder]: Removed 120 assume(true) statements. [2021-11-03 06:59:07,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 06:59:07 BoogieIcfgContainer [2021-11-03 06:59:07,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 06:59:07,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 06:59:07,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 06:59:07,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 06:59:07,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 06:59:06" (1/3) ... [2021-11-03 06:59:07,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf86997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 06:59:07, skipping insertion in model container [2021-11-03 06:59:07,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:06" (2/3) ... [2021-11-03 06:59:07,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf86997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 06:59:07, skipping insertion in model container [2021-11-03 06:59:07,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 06:59:07" (3/3) ... [2021-11-03 06:59:07,792 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test5-2.i [2021-11-03 06:59:07,796 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 06:59:07,796 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 06:59:07,853 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 06:59:07,862 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 06:59:07,862 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 06:59:07,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 287 states, 280 states have (on average 1.7214285714285715) internal successors, (482), 286 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:07,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 06:59:07,901 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:07,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:07,902 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:07,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:07,906 INFO L85 PathProgramCache]: Analyzing trace with hash 889803109, now seen corresponding path program 1 times [2021-11-03 06:59:07,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:07,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247993764] [2021-11-03 06:59:07,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:07,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:08,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 06:59:08,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:08,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247993764] [2021-11-03 06:59:08,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247993764] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:08,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:08,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 06:59:08,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647109904] [2021-11-03 06:59:08,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 06:59:08,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:08,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 06:59:08,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 06:59:08,082 INFO L87 Difference]: Start difference. First operand has 287 states, 280 states have (on average 1.7214285714285715) internal successors, (482), 286 states have internal predecessors, (482), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:08,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:08,870 INFO L93 Difference]: Finished difference Result 572 states and 962 transitions. [2021-11-03 06:59:08,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 06:59:08,873 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-03 06:59:08,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:08,880 INFO L225 Difference]: With dead ends: 572 [2021-11-03 06:59:08,880 INFO L226 Difference]: Without dead ends: 254 [2021-11-03 06:59:08,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 06:59:08,886 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 630.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.23ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 740.99ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:08,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 377 Unknown, 0 Unchecked, 2.23ms Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 740.99ms Time] [2021-11-03 06:59:08,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-03 06:59:08,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2021-11-03 06:59:08,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 248 states have (on average 1.342741935483871) internal successors, (333), 253 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:08,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 333 transitions. [2021-11-03 06:59:08,925 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 333 transitions. Word has length 8 [2021-11-03 06:59:08,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:08,926 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 333 transitions. [2021-11-03 06:59:08,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:08,926 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 333 transitions. [2021-11-03 06:59:08,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 06:59:08,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:08,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:08,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 06:59:08,944 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:08,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:08,945 INFO L85 PathProgramCache]: Analyzing trace with hash -680083191, now seen corresponding path program 1 times [2021-11-03 06:59:08,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:08,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658115228] [2021-11-03 06:59:08,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:08,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:08,968 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:08,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2094766114] [2021-11-03 06:59:08,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:08,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:08,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:08,971 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:08,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 06:59:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:09,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 06:59:09,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:09,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 06:59:09,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:09,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:09,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658115228] [2021-11-03 06:59:09,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:09,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094766114] [2021-11-03 06:59:09,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094766114] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:09,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:09,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 06:59:09,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691645320] [2021-11-03 06:59:09,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 06:59:09,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:09,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 06:59:09,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:09,272 INFO L87 Difference]: Start difference. First operand 254 states and 333 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:10,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:10,181 INFO L93 Difference]: Finished difference Result 587 states and 769 transitions. [2021-11-03 06:59:10,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 06:59:10,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 42 [2021-11-03 06:59:10,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:10,184 INFO L225 Difference]: With dead ends: 587 [2021-11-03 06:59:10,184 INFO L226 Difference]: Without dead ends: 505 [2021-11-03 06:59:10,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.96ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:10,186 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 327 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 700.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.98ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 860.76ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:10,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 0 Invalid, 665 Unknown, 0 Unchecked, 5.98ms Time], IncrementalHoareTripleChecker [1 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 860.76ms Time] [2021-11-03 06:59:10,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2021-11-03 06:59:10,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 255. [2021-11-03 06:59:10,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 249 states have (on average 1.3413654618473896) internal successors, (334), 254 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:10,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 334 transitions. [2021-11-03 06:59:10,205 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 334 transitions. Word has length 42 [2021-11-03 06:59:10,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:10,205 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 334 transitions. [2021-11-03 06:59:10,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:10,206 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 334 transitions. [2021-11-03 06:59:10,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 06:59:10,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:10,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:10,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:10,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:10,419 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:10,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:10,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1837409632, now seen corresponding path program 1 times [2021-11-03 06:59:10,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:10,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188395559] [2021-11-03 06:59:10,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:10,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:10,466 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:10,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [753829706] [2021-11-03 06:59:10,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:10,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:10,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:10,482 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:10,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 06:59:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:10,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:10,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:10,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 06:59:10,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:10,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:10,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188395559] [2021-11-03 06:59:10,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:10,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753829706] [2021-11-03 06:59:10,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753829706] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:10,882 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:10,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 06:59:10,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324605938] [2021-11-03 06:59:10,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 06:59:10,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:10,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 06:59:10,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:10,884 INFO L87 Difference]: Start difference. First operand 255 states and 334 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:11,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:11,470 INFO L93 Difference]: Finished difference Result 528 states and 696 transitions. [2021-11-03 06:59:11,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 06:59:11,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 140 [2021-11-03 06:59:11,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:11,471 INFO L225 Difference]: With dead ends: 528 [2021-11-03 06:59:11,471 INFO L226 Difference]: Without dead ends: 276 [2021-11-03 06:59:11,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:11,473 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 476.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.96ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 564.96ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:11,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 683 Unknown, 0 Unchecked, 1.96ms Time], IncrementalHoareTripleChecker [28 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 564.96ms Time] [2021-11-03 06:59:11,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-03 06:59:11,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 275. [2021-11-03 06:59:11,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 269 states have (on average 1.3159851301115242) internal successors, (354), 274 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:11,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 354 transitions. [2021-11-03 06:59:11,481 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 354 transitions. Word has length 140 [2021-11-03 06:59:11,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:11,481 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 354 transitions. [2021-11-03 06:59:11,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:11,500 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 354 transitions. [2021-11-03 06:59:11,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 06:59:11,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:11,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:11,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:11,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-03 06:59:11,728 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:11,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:11,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1273244828, now seen corresponding path program 1 times [2021-11-03 06:59:11,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:11,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537795304] [2021-11-03 06:59:11,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:11,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:11,742 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:11,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [100338388] [2021-11-03 06:59:11,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:11,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:11,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:11,745 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:11,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-03 06:59:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:11,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:11,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:12,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 06:59:12,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:12,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:12,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537795304] [2021-11-03 06:59:12,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:12,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100338388] [2021-11-03 06:59:12,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100338388] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:12,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:12,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 06:59:12,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521118651] [2021-11-03 06:59:12,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 06:59:12,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:12,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 06:59:12,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:12,104 INFO L87 Difference]: Start difference. First operand 275 states and 354 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:12,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:12,744 INFO L93 Difference]: Finished difference Result 568 states and 736 transitions. [2021-11-03 06:59:12,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 06:59:12,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 140 [2021-11-03 06:59:12,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:12,745 INFO L225 Difference]: With dead ends: 568 [2021-11-03 06:59:12,745 INFO L226 Difference]: Without dead ends: 296 [2021-11-03 06:59:12,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.37ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:12,747 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 527.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.88ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 620.37ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:12,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 683 Unknown, 0 Unchecked, 1.88ms Time], IncrementalHoareTripleChecker [28 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 620.37ms Time] [2021-11-03 06:59:12,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-11-03 06:59:12,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 295. [2021-11-03 06:59:12,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 289 states have (on average 1.2941176470588236) internal successors, (374), 294 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:12,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 374 transitions. [2021-11-03 06:59:12,756 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 374 transitions. Word has length 140 [2021-11-03 06:59:12,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:12,756 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 374 transitions. [2021-11-03 06:59:12,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 374 transitions. [2021-11-03 06:59:12,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 06:59:12,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:12,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:12,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:12,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:12,971 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:12,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:12,977 INFO L85 PathProgramCache]: Analyzing trace with hash -882913824, now seen corresponding path program 1 times [2021-11-03 06:59:12,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:12,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541868337] [2021-11-03 06:59:12,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:12,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:12,991 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:12,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1809990588] [2021-11-03 06:59:12,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:13,001 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:13,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:13,002 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:13,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-03 06:59:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:13,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:13,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:13,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 06:59:13,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:13,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:13,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541868337] [2021-11-03 06:59:13,373 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:13,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809990588] [2021-11-03 06:59:13,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809990588] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:13,374 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:13,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 06:59:13,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48843076] [2021-11-03 06:59:13,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 06:59:13,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:13,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 06:59:13,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:13,375 INFO L87 Difference]: Start difference. First operand 295 states and 374 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:14,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:14,030 INFO L93 Difference]: Finished difference Result 397 states and 510 transitions. [2021-11-03 06:59:14,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 06:59:14,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 140 [2021-11-03 06:59:14,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:14,032 INFO L225 Difference]: With dead ends: 397 [2021-11-03 06:59:14,033 INFO L226 Difference]: Without dead ends: 316 [2021-11-03 06:59:14,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.87ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:14,033 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 548.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.85ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 638.28ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:14,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 683 Unknown, 0 Unchecked, 1.85ms Time], IncrementalHoareTripleChecker [28 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 638.28ms Time] [2021-11-03 06:59:14,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-11-03 06:59:14,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 315. [2021-11-03 06:59:14,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 309 states have (on average 1.2750809061488673) internal successors, (394), 314 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:14,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 394 transitions. [2021-11-03 06:59:14,039 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 394 transitions. Word has length 140 [2021-11-03 06:59:14,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:14,043 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 394 transitions. [2021-11-03 06:59:14,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:14,043 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 394 transitions. [2021-11-03 06:59:14,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 06:59:14,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:14,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:14,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:14,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:14,259 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:14,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:14,260 INFO L85 PathProgramCache]: Analyzing trace with hash 115522276, now seen corresponding path program 1 times [2021-11-03 06:59:14,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:14,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391523287] [2021-11-03 06:59:14,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:14,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:14,282 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:14,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557504229] [2021-11-03 06:59:14,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:14,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:14,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:14,286 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:14,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-03 06:59:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:14,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:14,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:14,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 06:59:14,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:14,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:14,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391523287] [2021-11-03 06:59:14,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:14,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557504229] [2021-11-03 06:59:14,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557504229] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:14,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:14,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 06:59:14,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986276779] [2021-11-03 06:59:14,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 06:59:14,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:14,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 06:59:14,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 06:59:14,626 INFO L87 Difference]: Start difference. First operand 315 states and 394 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:15,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:15,253 INFO L93 Difference]: Finished difference Result 619 states and 777 transitions. [2021-11-03 06:59:15,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 06:59:15,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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 140 [2021-11-03 06:59:15,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:15,255 INFO L225 Difference]: With dead ends: 619 [2021-11-03 06:59:15,255 INFO L226 Difference]: Without dead ends: 307 [2021-11-03 06:59:15,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.14ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 06:59:15,256 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 321 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 481.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.29ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 594.08ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:15,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 0 Invalid, 685 Unknown, 0 Unchecked, 2.29ms Time], IncrementalHoareTripleChecker [24 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 594.08ms Time] [2021-11-03 06:59:15,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-03 06:59:15,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 301. [2021-11-03 06:59:15,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 295 states have (on average 1.264406779661017) internal successors, (373), 300 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:15,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 373 transitions. [2021-11-03 06:59:15,264 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 373 transitions. Word has length 140 [2021-11-03 06:59:15,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:15,265 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 373 transitions. [2021-11-03 06:59:15,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:15,265 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 373 transitions. [2021-11-03 06:59:15,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 06:59:15,266 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:15,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:15,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:15,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:15,476 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:15,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:15,476 INFO L85 PathProgramCache]: Analyzing trace with hash 32737814, now seen corresponding path program 1 times [2021-11-03 06:59:15,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:15,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033855271] [2021-11-03 06:59:15,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:15,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:15,496 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:15,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [824017064] [2021-11-03 06:59:15,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:15,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:15,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:15,498 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:15,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-03 06:59:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:15,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:15,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:15,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 06:59:15,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:15,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:15,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033855271] [2021-11-03 06:59:15,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:15,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824017064] [2021-11-03 06:59:15,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824017064] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:15,820 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:15,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 06:59:15,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395742222] [2021-11-03 06:59:15,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 06:59:15,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:15,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 06:59:15,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 06:59:15,821 INFO L87 Difference]: Start difference. First operand 301 states and 373 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:16,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:16,653 INFO L93 Difference]: Finished difference Result 680 states and 844 transitions. [2021-11-03 06:59:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 06:59:16,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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 140 [2021-11-03 06:59:16,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:16,655 INFO L225 Difference]: With dead ends: 680 [2021-11-03 06:59:16,655 INFO L226 Difference]: Without dead ends: 382 [2021-11-03 06:59:16,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.15ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 06:59:16,656 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 314 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 661.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.11ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 796.54ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:16,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 0 Invalid, 980 Unknown, 0 Unchecked, 3.11ms Time], IncrementalHoareTripleChecker [24 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 796.54ms Time] [2021-11-03 06:59:16,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-11-03 06:59:16,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 287. [2021-11-03 06:59:16,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 281 states have (on average 1.2526690391459074) internal successors, (352), 286 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:16,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 352 transitions. [2021-11-03 06:59:16,661 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 352 transitions. Word has length 140 [2021-11-03 06:59:16,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:16,661 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 352 transitions. [2021-11-03 06:59:16,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:16,662 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 352 transitions. [2021-11-03 06:59:16,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 06:59:16,662 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:16,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:16,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:16,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:16,871 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:16,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:16,872 INFO L85 PathProgramCache]: Analyzing trace with hash -577227484, now seen corresponding path program 1 times [2021-11-03 06:59:16,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:16,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691767615] [2021-11-03 06:59:16,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:16,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:16,894 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:16,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1964242621] [2021-11-03 06:59:16,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:16,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:16,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:16,899 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:16,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-03 06:59:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:17,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:17,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:17,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 06:59:17,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:17,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:17,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691767615] [2021-11-03 06:59:17,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:17,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964242621] [2021-11-03 06:59:17,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964242621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:17,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:17,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 06:59:17,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028363243] [2021-11-03 06:59:17,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 06:59:17,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:17,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 06:59:17,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 06:59:17,240 INFO L87 Difference]: Start difference. First operand 287 states and 352 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:18,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:18,364 INFO L93 Difference]: Finished difference Result 379 states and 468 transitions. [2021-11-03 06:59:18,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 06:59:18,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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 140 [2021-11-03 06:59:18,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:18,365 INFO L225 Difference]: With dead ends: 379 [2021-11-03 06:59:18,365 INFO L226 Difference]: Without dead ends: 278 [2021-11-03 06:59:18,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.41ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 06:59:18,366 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 95 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 959.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.52ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1097.27ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:18,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 0 Invalid, 863 Unknown, 0 Unchecked, 2.52ms Time], IncrementalHoareTripleChecker [24 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1097.27ms Time] [2021-11-03 06:59:18,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-11-03 06:59:18,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 273. [2021-11-03 06:59:18,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 267 states have (on average 1.2397003745318351) internal successors, (331), 272 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:18,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 331 transitions. [2021-11-03 06:59:18,372 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 331 transitions. Word has length 140 [2021-11-03 06:59:18,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:18,372 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 331 transitions. [2021-11-03 06:59:18,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:18,373 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 331 transitions. [2021-11-03 06:59:18,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 06:59:18,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:18,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:18,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:18,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:18,584 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:18,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:18,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1460076330, now seen corresponding path program 1 times [2021-11-03 06:59:18,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:18,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962390699] [2021-11-03 06:59:18,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:18,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:18,595 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:18,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1442404198] [2021-11-03 06:59:18,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:18,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:18,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:18,596 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:18,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-03 06:59:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:18,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:18,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:18,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 06:59:18,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 06:59:19,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 06:59:19,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:19,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962390699] [2021-11-03 06:59:19,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:19,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442404198] [2021-11-03 06:59:19,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442404198] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 06:59:19,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 06:59:19,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-03 06:59:19,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750791526] [2021-11-03 06:59:19,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 06:59:19,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:19,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 06:59:19,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 06:59:19,273 INFO L87 Difference]: Start difference. First operand 273 states and 331 transitions. Second operand has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:20,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:20,796 INFO L93 Difference]: Finished difference Result 1081 states and 1313 transitions. [2021-11-03 06:59:20,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 06:59:20,797 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 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 140 [2021-11-03 06:59:20,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:20,800 INFO L225 Difference]: With dead ends: 1081 [2021-11-03 06:59:20,800 INFO L226 Difference]: Without dead ends: 993 [2021-11-03 06:59:20,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.11ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 06:59:20,801 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1335 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1182.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.38ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1459.44ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:20,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1335 Valid, 0 Invalid, 1154 Unknown, 0 Unchecked, 6.38ms Time], IncrementalHoareTripleChecker [8 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 1459.44ms Time] [2021-11-03 06:59:20,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2021-11-03 06:59:20,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 819. [2021-11-03 06:59:20,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 813 states have (on average 1.2263222632226323) internal successors, (997), 818 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:20,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 997 transitions. [2021-11-03 06:59:20,829 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 997 transitions. Word has length 140 [2021-11-03 06:59:20,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:20,829 INFO L470 AbstractCegarLoop]: Abstraction has 819 states and 997 transitions. [2021-11-03 06:59:20,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:20,830 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 997 transitions. [2021-11-03 06:59:20,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-11-03 06:59:20,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:20,834 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:20,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:21,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-03 06:59:21,047 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:21,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:21,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1752556443, now seen corresponding path program 2 times [2021-11-03 06:59:21,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:21,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110027730] [2021-11-03 06:59:21,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:21,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:21,065 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:21,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1721158881] [2021-11-03 06:59:21,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 06:59:21,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:21,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:21,067 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:21,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-03 06:59:21,330 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 06:59:21,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 06:59:21,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 06:59:21,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:22,137 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 06:59:22,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 06:59:23,021 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 06:59:23,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:23,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110027730] [2021-11-03 06:59:23,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:23,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721158881] [2021-11-03 06:59:23,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721158881] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 06:59:23,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 06:59:23,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-11-03 06:59:23,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107570456] [2021-11-03 06:59:23,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 06:59:23,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:23,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 06:59:23,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 06:59:23,024 INFO L87 Difference]: Start difference. First operand 819 states and 997 transitions. Second operand has 12 states, 12 states have (on average 69.0) internal successors, (828), 12 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:27,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:27,015 INFO L93 Difference]: Finished difference Result 2434 states and 2960 transitions. [2021-11-03 06:59:27,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 06:59:27,016 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 69.0) internal successors, (828), 12 states have internal predecessors, (828), 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 434 [2021-11-03 06:59:27,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:27,022 INFO L225 Difference]: With dead ends: 2434 [2021-11-03 06:59:27,022 INFO L226 Difference]: Without dead ends: 2346 [2021-11-03 06:59:27,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.16ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 06:59:27,023 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3522 mSDsluCounter, 2636 mSDsCounter, 0 mSdLazyCounter, 2997 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3222.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3522 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.76ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3829.52ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:27,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3522 Valid, 0 Invalid, 3013 Unknown, 0 Unchecked, 12.76ms Time], IncrementalHoareTripleChecker [16 Valid, 2997 Invalid, 0 Unknown, 0 Unchecked, 3829.52ms Time] [2021-11-03 06:59:27,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2021-11-03 06:59:27,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 1911. [2021-11-03 06:59:27,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1905 states have (on average 1.2225721784776904) internal successors, (2329), 1910 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:27,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2329 transitions. [2021-11-03 06:59:27,054 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2329 transitions. Word has length 434 [2021-11-03 06:59:27,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:27,055 INFO L470 AbstractCegarLoop]: Abstraction has 1911 states and 2329 transitions. [2021-11-03 06:59:27,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 69.0) internal successors, (828), 12 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:27,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2329 transitions. [2021-11-03 06:59:27,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1023 [2021-11-03 06:59:27,079 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:27,080 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:27,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:27,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-03 06:59:27,292 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:27,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:27,292 INFO L85 PathProgramCache]: Analyzing trace with hash -675748379, now seen corresponding path program 3 times [2021-11-03 06:59:27,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:27,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072670465] [2021-11-03 06:59:27,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:27,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:27,334 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:27,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1412075269] [2021-11-03 06:59:27,334 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 06:59:27,334 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:27,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:27,335 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:27,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-03 06:59:27,593 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 06:59:27,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 06:59:27,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 06:59:27,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:31,220 INFO L134 CoverageAnalysis]: Checked inductivity of 4420 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 4275 trivial. 0 not checked. [2021-11-03 06:59:31,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:31,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:31,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072670465] [2021-11-03 06:59:31,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:31,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412075269] [2021-11-03 06:59:31,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412075269] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:31,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:31,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 06:59:31,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933703021] [2021-11-03 06:59:31,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 06:59:31,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:31,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 06:59:31,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:31,223 INFO L87 Difference]: Start difference. First operand 1911 states and 2329 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:32,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:32,079 INFO L93 Difference]: Finished difference Result 3746 states and 4565 transitions. [2021-11-03 06:59:32,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 06:59:32,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 1022 [2021-11-03 06:59:32,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:32,084 INFO L225 Difference]: With dead ends: 3746 [2021-11-03 06:59:32,084 INFO L226 Difference]: Without dead ends: 1980 [2021-11-03 06:59:32,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1021 GetRequests, 1020 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.94ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:32,087 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 149 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 717.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.95ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 826.61ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:32,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 0 Invalid, 656 Unknown, 0 Unchecked, 0.95ms Time], IncrementalHoareTripleChecker [3 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 826.61ms Time] [2021-11-03 06:59:32,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2021-11-03 06:59:32,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1968. [2021-11-03 06:59:32,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1968 states, 1962 states have (on average 1.2237512742099899) internal successors, (2401), 1967 states have internal predecessors, (2401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:32,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1968 states to 1968 states and 2401 transitions. [2021-11-03 06:59:32,118 INFO L78 Accepts]: Start accepts. Automaton has 1968 states and 2401 transitions. Word has length 1022 [2021-11-03 06:59:32,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:32,118 INFO L470 AbstractCegarLoop]: Abstraction has 1968 states and 2401 transitions. [2021-11-03 06:59:32,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:32,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1968 states and 2401 transitions. [2021-11-03 06:59:32,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1030 [2021-11-03 06:59:32,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:32,127 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:32,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:32,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-03 06:59:32,343 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:32,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:32,344 INFO L85 PathProgramCache]: Analyzing trace with hash -680932187, now seen corresponding path program 1 times [2021-11-03 06:59:32,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:32,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874176303] [2021-11-03 06:59:32,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:32,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:32,393 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:32,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1089611640] [2021-11-03 06:59:32,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:32,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:32,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:32,395 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:32,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-03 06:59:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:32,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 2633 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:32,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:34,270 INFO L134 CoverageAnalysis]: Checked inductivity of 4402 backedges. 748 proven. 0 refuted. 0 times theorem prover too weak. 3654 trivial. 0 not checked. [2021-11-03 06:59:34,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:34,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:34,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874176303] [2021-11-03 06:59:34,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:34,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089611640] [2021-11-03 06:59:34,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089611640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:34,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:34,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 06:59:34,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961413701] [2021-11-03 06:59:34,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 06:59:34,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:34,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 06:59:34,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:34,273 INFO L87 Difference]: Start difference. First operand 1968 states and 2401 transitions. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:34,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:34,867 INFO L93 Difference]: Finished difference Result 3924 states and 4823 transitions. [2021-11-03 06:59:34,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 06:59:34,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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 1029 [2021-11-03 06:59:34,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:34,872 INFO L225 Difference]: With dead ends: 3924 [2021-11-03 06:59:34,872 INFO L226 Difference]: Without dead ends: 2008 [2021-11-03 06:59:34,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1028 GetRequests, 1027 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:34,875 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 462.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.85ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 564.47ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:34,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 626 Unknown, 0 Unchecked, 0.85ms Time], IncrementalHoareTripleChecker [6 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 564.47ms Time] [2021-11-03 06:59:34,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2021-11-03 06:59:34,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 2008. [2021-11-03 06:59:34,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2008 states, 2002 states have (on average 1.2192807192807193) internal successors, (2441), 2007 states have internal predecessors, (2441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:34,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2441 transitions. [2021-11-03 06:59:34,905 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2441 transitions. Word has length 1029 [2021-11-03 06:59:34,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:34,905 INFO L470 AbstractCegarLoop]: Abstraction has 2008 states and 2441 transitions. [2021-11-03 06:59:34,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:34,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2441 transitions. [2021-11-03 06:59:34,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1032 [2021-11-03 06:59:34,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:34,920 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:34,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:35,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-03 06:59:35,128 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:35,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:35,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1832465830, now seen corresponding path program 1 times [2021-11-03 06:59:35,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:35,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857817261] [2021-11-03 06:59:35,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:35,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:35,154 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:35,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1216935934] [2021-11-03 06:59:35,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:35,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:35,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:35,156 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:35,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-03 06:59:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:35,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 06:59:35,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:36,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4404 backedges. 748 proven. 1 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2021-11-03 06:59:36,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 06:59:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 4404 backedges. 748 proven. 1 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2021-11-03 06:59:38,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:38,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857817261] [2021-11-03 06:59:38,339 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:38,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216935934] [2021-11-03 06:59:38,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216935934] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 06:59:38,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 06:59:38,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-03 06:59:38,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345203787] [2021-11-03 06:59:38,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 06:59:38,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:38,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 06:59:38,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 06:59:38,342 INFO L87 Difference]: Start difference. First operand 2008 states and 2441 transitions. Second operand has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:39,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:39,301 INFO L93 Difference]: Finished difference Result 4083 states and 5062 transitions. [2021-11-03 06:59:39,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 06:59:39,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 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 1031 [2021-11-03 06:59:39,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:39,307 INFO L225 Difference]: With dead ends: 4083 [2021-11-03 06:59:39,307 INFO L226 Difference]: Without dead ends: 2128 [2021-11-03 06:59:39,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2060 GetRequests, 2056 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.87ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 06:59:39,310 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 771.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.51ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 921.11ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:39,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 967 Unknown, 0 Unchecked, 1.51ms Time], IncrementalHoareTripleChecker [31 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 921.11ms Time] [2021-11-03 06:59:39,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2021-11-03 06:59:39,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 2128. [2021-11-03 06:59:39,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2122 states have (on average 1.206880301602262) internal successors, (2561), 2127 states have internal predecessors, (2561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:39,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2561 transitions. [2021-11-03 06:59:39,345 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2561 transitions. Word has length 1031 [2021-11-03 06:59:39,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:39,345 INFO L470 AbstractCegarLoop]: Abstraction has 2128 states and 2561 transitions. [2021-11-03 06:59:39,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:39,346 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2561 transitions. [2021-11-03 06:59:39,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1038 [2021-11-03 06:59:39,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:39,355 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:39,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:39,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-03 06:59:39,565 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:39,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:39,566 INFO L85 PathProgramCache]: Analyzing trace with hash 262001125, now seen corresponding path program 2 times [2021-11-03 06:59:39,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:39,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075264911] [2021-11-03 06:59:39,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:39,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:39,601 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:39,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [23038974] [2021-11-03 06:59:39,601 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 06:59:39,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:39,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:39,603 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:39,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-03 06:59:40,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 06:59:40,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 06:59:40,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 2681 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 06:59:40,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:41,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4422 backedges. 748 proven. 10 refuted. 0 times theorem prover too weak. 3664 trivial. 0 not checked. [2021-11-03 06:59:41,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 06:59:42,859 INFO L134 CoverageAnalysis]: Checked inductivity of 4422 backedges. 748 proven. 10 refuted. 0 times theorem prover too weak. 3664 trivial. 0 not checked. [2021-11-03 06:59:42,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:42,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075264911] [2021-11-03 06:59:42,859 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:42,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23038974] [2021-11-03 06:59:42,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23038974] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 06:59:42,860 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 06:59:42,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-11-03 06:59:42,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863231171] [2021-11-03 06:59:42,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 06:59:42,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:42,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 06:59:42,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 06:59:42,861 INFO L87 Difference]: Start difference. First operand 2128 states and 2561 transitions. Second operand has 12 states, 12 states have (on average 20.25) internal successors, (243), 12 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:43,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:43,767 INFO L93 Difference]: Finished difference Result 4440 states and 5539 transitions. [2021-11-03 06:59:43,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 06:59:43,768 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.25) internal successors, (243), 12 states have internal predecessors, (243), 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 1037 [2021-11-03 06:59:43,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:43,773 INFO L225 Difference]: With dead ends: 4440 [2021-11-03 06:59:43,774 INFO L226 Difference]: Without dead ends: 2368 [2021-11-03 06:59:43,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2072 GetRequests, 2062 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.05ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 06:59:43,777 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 693.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.86ms SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 854.89ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:43,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1059 Unknown, 0 Unchecked, 1.86ms Time], IncrementalHoareTripleChecker [99 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 854.89ms Time] [2021-11-03 06:59:43,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2021-11-03 06:59:43,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 2368. [2021-11-03 06:59:43,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2368 states, 2362 states have (on average 1.1858594411515664) internal successors, (2801), 2367 states have internal predecessors, (2801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:43,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2368 states to 2368 states and 2801 transitions. [2021-11-03 06:59:43,819 INFO L78 Accepts]: Start accepts. Automaton has 2368 states and 2801 transitions. Word has length 1037 [2021-11-03 06:59:43,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:43,819 INFO L470 AbstractCegarLoop]: Abstraction has 2368 states and 2801 transitions. [2021-11-03 06:59:43,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.25) internal successors, (243), 12 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2368 states and 2801 transitions. [2021-11-03 06:59:43,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2021-11-03 06:59:43,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:43,829 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:43,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:44,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-03 06:59:44,048 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:44,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:44,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1261568571, now seen corresponding path program 3 times [2021-11-03 06:59:44,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:44,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272203200] [2021-11-03 06:59:44,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:44,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:44,097 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:44,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2112333996] [2021-11-03 06:59:44,098 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 06:59:44,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:44,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:44,099 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:44,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-03 06:59:44,374 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 06:59:44,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 06:59:44,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 06:59:44,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:47,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 3946 trivial. 0 not checked. [2021-11-03 06:59:47,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:47,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:47,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272203200] [2021-11-03 06:59:47,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:47,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112333996] [2021-11-03 06:59:47,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112333996] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:47,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:47,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 06:59:47,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594184386] [2021-11-03 06:59:47,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 06:59:47,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:47,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 06:59:47,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:47,855 INFO L87 Difference]: Start difference. First operand 2368 states and 2801 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:48,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:48,462 INFO L93 Difference]: Finished difference Result 4658 states and 5516 transitions. [2021-11-03 06:59:48,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 06:59:48,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 1049 [2021-11-03 06:59:48,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:48,468 INFO L225 Difference]: With dead ends: 4658 [2021-11-03 06:59:48,468 INFO L226 Difference]: Without dead ends: 2366 [2021-11-03 06:59:48,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1048 GetRequests, 1047 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:48,470 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 19 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 469.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.81ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 569.65ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:48,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 0 Invalid, 613 Unknown, 0 Unchecked, 0.81ms Time], IncrementalHoareTripleChecker [1 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 569.65ms Time] [2021-11-03 06:59:48,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2021-11-03 06:59:48,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2366. [2021-11-03 06:59:48,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2366 states, 2360 states have (on average 1.185593220338983) internal successors, (2798), 2365 states have internal predecessors, (2798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:48,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 2798 transitions. [2021-11-03 06:59:48,507 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 2798 transitions. Word has length 1049 [2021-11-03 06:59:48,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:48,507 INFO L470 AbstractCegarLoop]: Abstraction has 2366 states and 2798 transitions. [2021-11-03 06:59:48,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:48,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 2798 transitions. [2021-11-03 06:59:48,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1077 [2021-11-03 06:59:48,517 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:48,518 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:48,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:48,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:48,738 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:48,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:48,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1857330421, now seen corresponding path program 1 times [2021-11-03 06:59:48,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:48,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251252729] [2021-11-03 06:59:48,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:48,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:48,767 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:48,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387744843] [2021-11-03 06:59:48,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:48,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:48,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:48,768 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:48,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-03 06:59:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:49,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 2957 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 06:59:49,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:50,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4604 backedges. 325 proven. 55 refuted. 0 times theorem prover too weak. 4224 trivial. 0 not checked. [2021-11-03 06:59:50,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 06:59:52,230 INFO L134 CoverageAnalysis]: Checked inductivity of 4604 backedges. 325 proven. 55 refuted. 0 times theorem prover too weak. 4224 trivial. 0 not checked. [2021-11-03 06:59:52,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:52,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251252729] [2021-11-03 06:59:52,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:52,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387744843] [2021-11-03 06:59:52,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387744843] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 06:59:52,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 06:59:52,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-11-03 06:59:52,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430124098] [2021-11-03 06:59:52,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-03 06:59:52,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:52,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-03 06:59:52,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-03 06:59:52,233 INFO L87 Difference]: Start difference. First operand 2366 states and 2798 transitions. Second operand has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:53,648 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 06:59:55,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:55,893 INFO L93 Difference]: Finished difference Result 5152 states and 6490 transitions. [2021-11-03 06:59:55,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-03 06:59:55,893 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 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 1076 [2021-11-03 06:59:55,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:55,900 INFO L225 Difference]: With dead ends: 5152 [2021-11-03 06:59:55,900 INFO L226 Difference]: Without dead ends: 2846 [2021-11-03 06:59:55,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2150 GetRequests, 2128 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 222.45ms TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-03 06:59:55,902 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3198.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.06ms SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3554.93ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:55,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 2735 Unknown, 0 Unchecked, 5.06ms Time], IncrementalHoareTripleChecker [207 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 3554.93ms Time] [2021-11-03 06:59:55,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2021-11-03 06:59:55,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2846. [2021-11-03 06:59:55,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2846 states, 2840 states have (on average 1.154225352112676) internal successors, (3278), 2845 states have internal predecessors, (3278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:55,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2846 states to 2846 states and 3278 transitions. [2021-11-03 06:59:55,957 INFO L78 Accepts]: Start accepts. Automaton has 2846 states and 3278 transitions. Word has length 1076 [2021-11-03 06:59:55,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:55,958 INFO L470 AbstractCegarLoop]: Abstraction has 2846 states and 3278 transitions. [2021-11-03 06:59:55,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 06:59:55,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2846 states and 3278 transitions. [2021-11-03 06:59:55,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1125 [2021-11-03 06:59:55,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:55,970 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:55,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:56,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-03 06:59:56,189 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 06:59:56,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:56,190 INFO L85 PathProgramCache]: Analyzing trace with hash -242572171, now seen corresponding path program 2 times [2021-11-03 06:59:56,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:56,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484305274] [2021-11-03 06:59:56,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:56,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:56,219 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:56,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1264760925] [2021-11-03 06:59:56,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 06:59:56,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:56,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:56,220 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 06:59:56,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-03 06:59:56,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 06:59:56,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 06:59:56,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 3245 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 06:59:56,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5396 backedges. 325 proven. 253 refuted. 0 times theorem prover too weak. 4818 trivial. 0 not checked. [2021-11-03 06:59:58,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 07:00:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5396 backedges. 325 proven. 253 refuted. 0 times theorem prover too weak. 4818 trivial. 0 not checked. [2021-11-03 07:00:00,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 07:00:00,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484305274] [2021-11-03 07:00:00,652 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 07:00:00,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264760925] [2021-11-03 07:00:00,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264760925] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 07:00:00,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 07:00:00,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 48 [2021-11-03 07:00:00,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092478910] [2021-11-03 07:00:00,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-03 07:00:00,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 07:00:00,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-03 07:00:00,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1127, Invalid=1129, Unknown=0, NotChecked=0, Total=2256 [2021-11-03 07:00:00,655 INFO L87 Difference]: Start difference. First operand 2846 states and 3278 transitions. Second operand has 48 states, 48 states have (on average 5.083333333333333) internal successors, (244), 48 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 07:00:01,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 07:00:01,909 INFO L93 Difference]: Finished difference Result 6500 states and 8238 transitions. [2021-11-03 07:00:01,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-03 07:00:01,909 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 5.083333333333333) internal successors, (244), 48 states have internal predecessors, (244), 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 1124 [2021-11-03 07:00:01,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 07:00:01,919 INFO L225 Difference]: With dead ends: 6500 [2021-11-03 07:00:01,919 INFO L226 Difference]: Without dead ends: 3726 [2021-11-03 07:00:01,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2246 GetRequests, 2200 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 970.54ms TimeCoverageRelationStatistics Valid=1127, Invalid=1129, Unknown=0, NotChecked=0, Total=2256 [2021-11-03 07:00:01,923 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 674 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 869.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.52ms SdHoareTripleChecker+Time, 674 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1076.22ms IncrementalHoareTripleChecker+Time [2021-11-03 07:00:01,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1470 Unknown, 0 Unchecked, 3.52ms Time], IncrementalHoareTripleChecker [674 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1076.22ms Time] [2021-11-03 07:00:01,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2021-11-03 07:00:02,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3726. [2021-11-03 07:00:02,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3726 states, 3720 states have (on average 1.117741935483871) internal successors, (4158), 3725 states have internal predecessors, (4158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 07:00:02,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3726 states to 3726 states and 4158 transitions. [2021-11-03 07:00:02,026 INFO L78 Accepts]: Start accepts. Automaton has 3726 states and 4158 transitions. Word has length 1124 [2021-11-03 07:00:02,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 07:00:02,027 INFO L470 AbstractCegarLoop]: Abstraction has 3726 states and 4158 transitions. [2021-11-03 07:00:02,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 5.083333333333333) internal successors, (244), 48 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 07:00:02,027 INFO L276 IsEmpty]: Start isEmpty. Operand 3726 states and 4158 transitions. [2021-11-03 07:00:02,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1213 [2021-11-03 07:00:02,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 07:00:02,042 INFO L514 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 07:00:02,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-11-03 07:00:02,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-03 07:00:02,256 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 07:00:02,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 07:00:02,256 INFO L85 PathProgramCache]: Analyzing trace with hash -872601035, now seen corresponding path program 3 times [2021-11-03 07:00:02,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 07:00:02,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167464549] [2021-11-03 07:00:02,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 07:00:02,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 07:00:02,286 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 07:00:02,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2042565502] [2021-11-03 07:00:02,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 07:00:02,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 07:00:02,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 07:00:02,288 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 07:00:02,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-03 07:00:02,588 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 07:00:02,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 07:00:02,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 07:00:02,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 07:00:04,087 INFO L134 CoverageAnalysis]: Checked inductivity of 8344 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 8201 trivial. 0 not checked. [2021-11-03 07:00:04,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 07:00:04,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 07:00:04,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167464549] [2021-11-03 07:00:04,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 07:00:04,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042565502] [2021-11-03 07:00:04,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042565502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 07:00:04,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 07:00:04,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 07:00:04,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664440460] [2021-11-03 07:00:04,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 07:00:04,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 07:00:04,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 07:00:04,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 07:00:04,090 INFO L87 Difference]: Start difference. First operand 3726 states and 4158 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 07:00:06,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 07:00:06,011 INFO L93 Difference]: Finished difference Result 8680 states and 9757 transitions. [2021-11-03 07:00:06,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 07:00:06,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 1212 [2021-11-03 07:00:06,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 07:00:06,028 INFO L225 Difference]: With dead ends: 8680 [2021-11-03 07:00:06,028 INFO L226 Difference]: Without dead ends: 5892 [2021-11-03 07:00:06,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1211 GetRequests, 1210 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 07:00:06,033 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 246 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1634.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.12ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1799.00ms IncrementalHoareTripleChecker+Time [2021-11-03 07:00:06,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 0 Invalid, 796 Unknown, 0 Unchecked, 1.12ms Time], IncrementalHoareTripleChecker [2 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 1799.00ms Time] [2021-11-03 07:00:06,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2021-11-03 07:00:06,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5880. [2021-11-03 07:00:06,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5880 states, 5874 states have (on average 1.1280217909431394) internal successors, (6626), 5879 states have internal predecessors, (6626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 07:00:06,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 6626 transitions. [2021-11-03 07:00:06,176 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 6626 transitions. Word has length 1212 [2021-11-03 07:00:06,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 07:00:06,177 INFO L470 AbstractCegarLoop]: Abstraction has 5880 states and 6626 transitions. [2021-11-03 07:00:06,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 07:00:06,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 6626 transitions. [2021-11-03 07:00:06,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1220 [2021-11-03 07:00:06,192 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 07:00:06,193 INFO L514 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 07:00:06,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-11-03 07:00:06,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-03 07:00:06,397 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 07:00:06,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 07:00:06,397 INFO L85 PathProgramCache]: Analyzing trace with hash -696970893, now seen corresponding path program 1 times [2021-11-03 07:00:06,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 07:00:06,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108276068] [2021-11-03 07:00:06,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 07:00:06,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 07:00:06,443 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 07:00:06,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1400383886] [2021-11-03 07:00:06,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 07:00:06,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 07:00:06,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 07:00:06,445 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 07:00:06,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-03 07:00:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 07:00:07,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 3798 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-03 07:00:07,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 07:00:09,586 INFO L134 CoverageAnalysis]: Checked inductivity of 8344 backedges. 325 proven. 990 refuted. 0 times theorem prover too weak. 7029 trivial. 0 not checked. [2021-11-03 07:00:09,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 07:00:15,221 INFO L134 CoverageAnalysis]: Checked inductivity of 8344 backedges. 325 proven. 990 refuted. 0 times theorem prover too weak. 7029 trivial. 0 not checked. [2021-11-03 07:00:15,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 07:00:15,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108276068] [2021-11-03 07:00:15,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 07:00:15,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400383886] [2021-11-03 07:00:15,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400383886] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 07:00:15,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 07:00:15,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 92 [2021-11-03 07:00:15,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446418433] [2021-11-03 07:00:15,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2021-11-03 07:00:15,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 07:00:15,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-11-03 07:00:15,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2021-11-03 07:00:15,227 INFO L87 Difference]: Start difference. First operand 5880 states and 6626 transitions. Second operand has 92 states, 92 states have (on average 3.2065217391304346) internal successors, (295), 92 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 07:00:18,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 07:00:18,001 INFO L93 Difference]: Finished difference Result 12907 states and 15680 transitions. [2021-11-03 07:00:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-11-03 07:00:18,002 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 92 states have (on average 3.2065217391304346) internal successors, (295), 92 states have internal predecessors, (295), 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 1219 [2021-11-03 07:00:18,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 07:00:18,017 INFO L225 Difference]: With dead ends: 12907 [2021-11-03 07:00:18,017 INFO L226 Difference]: Without dead ends: 7168 [2021-11-03 07:00:18,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2436 GetRequests, 2346 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4663.98ms TimeCoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2021-11-03 07:00:18,027 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 2120 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1801.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.55ms SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 2120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2241.11ms IncrementalHoareTripleChecker+Time [2021-11-03 07:00:18,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 2895 Unknown, 0 Unchecked, 6.55ms Time], IncrementalHoareTripleChecker [775 Valid, 2120 Invalid, 0 Unknown, 0 Unchecked, 2241.11ms Time] [2021-11-03 07:00:18,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7168 states. [2021-11-03 07:00:18,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7168 to 7168. [2021-11-03 07:00:18,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7168 states, 7162 states have (on average 1.1049986037419715) internal successors, (7914), 7167 states have internal predecessors, (7914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 07:00:18,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7168 states to 7168 states and 7914 transitions. [2021-11-03 07:00:18,286 INFO L78 Accepts]: Start accepts. Automaton has 7168 states and 7914 transitions. Word has length 1219 [2021-11-03 07:00:18,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 07:00:18,287 INFO L470 AbstractCegarLoop]: Abstraction has 7168 states and 7914 transitions. [2021-11-03 07:00:18,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 3.2065217391304346) internal successors, (295), 92 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 07:00:18,287 INFO L276 IsEmpty]: Start isEmpty. Operand 7168 states and 7914 transitions. [2021-11-03 07:00:18,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1312 [2021-11-03 07:00:18,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 07:00:18,304 INFO L514 BasicCegarLoop]: trace histogram [90, 90, 44, 44, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 07:00:18,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-03 07:00:18,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 07:00:18,506 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 07:00:18,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 07:00:18,507 INFO L85 PathProgramCache]: Analyzing trace with hash 541272115, now seen corresponding path program 2 times [2021-11-03 07:00:18,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 07:00:18,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951266790] [2021-11-03 07:00:18,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 07:00:18,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 07:00:18,547 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 07:00:18,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [814429902] [2021-11-03 07:00:18,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 07:00:18,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 07:00:18,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 07:00:18,548 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 07:00:18,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-03 07:00:19,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 07:00:19,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 07:00:19,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 4350 conjuncts, 93 conjunts are in the unsatisfiable core [2021-11-03 07:00:19,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 07:00:24,238 INFO L134 CoverageAnalysis]: Checked inductivity of 14554 backedges. 325 proven. 4095 refuted. 0 times theorem prover too weak. 10134 trivial. 0 not checked. [2021-11-03 07:00:24,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 07:00:56,191 INFO L134 CoverageAnalysis]: Checked inductivity of 14554 backedges. 325 proven. 4095 refuted. 0 times theorem prover too weak. 10134 trivial. 0 not checked. [2021-11-03 07:00:56,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 07:00:56,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951266790] [2021-11-03 07:00:56,192 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 07:00:56,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814429902] [2021-11-03 07:00:56,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814429902] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 07:00:56,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 07:00:56,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 93] total 184 [2021-11-03 07:00:56,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225240078] [2021-11-03 07:00:56,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 184 states [2021-11-03 07:00:56,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 07:00:56,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 184 interpolants. [2021-11-03 07:00:56,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16836, Invalid=16836, Unknown=0, NotChecked=0, Total=33672 [2021-11-03 07:00:56,211 INFO L87 Difference]: Start difference. First operand 7168 states and 7914 transitions. Second operand has 184 states, 184 states have (on average 2.1032608695652173) internal successors, (387), 184 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 07:01:06,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 07:01:06,292 INFO L93 Difference]: Finished difference Result 16725 states and 20786 transitions. [2021-11-03 07:01:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2021-11-03 07:01:06,295 INFO L78 Accepts]: Start accepts. Automaton has has 184 states, 184 states have (on average 2.1032608695652173) internal successors, (387), 184 states have internal predecessors, (387), 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 1311 [2021-11-03 07:01:06,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 07:01:06,313 INFO L225 Difference]: With dead ends: 16725 [2021-11-03 07:01:06,314 INFO L226 Difference]: Without dead ends: 9744 [2021-11-03 07:01:06,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2620 GetRequests, 2438 SyntacticMatches, 0 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32670.20ms TimeCoverageRelationStatistics Valid=16836, Invalid=16836, Unknown=0, NotChecked=0, Total=33672 [2021-11-03 07:01:06,326 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 2600 mSolverCounterSat, 1353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5577.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.17ms SdHoareTripleChecker+Time, 1353 IncrementalHoareTripleChecker+Valid, 2600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7157.48ms IncrementalHoareTripleChecker+Time [2021-11-03 07:01:06,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 3953 Unknown, 0 Unchecked, 17.17ms Time], IncrementalHoareTripleChecker [1353 Valid, 2600 Invalid, 0 Unknown, 0 Unchecked, 7157.48ms Time] [2021-11-03 07:01:06,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9744 states. [2021-11-03 07:01:06,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9744 to 9744. [2021-11-03 07:01:06,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9744 states, 9738 states have (on average 1.0772232491271307) internal successors, (10490), 9743 states have internal predecessors, (10490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 07:01:06,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9744 states to 9744 states and 10490 transitions. [2021-11-03 07:01:06,666 INFO L78 Accepts]: Start accepts. Automaton has 9744 states and 10490 transitions. Word has length 1311 [2021-11-03 07:01:06,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 07:01:06,666 INFO L470 AbstractCegarLoop]: Abstraction has 9744 states and 10490 transitions. [2021-11-03 07:01:06,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 184 states, 184 states have (on average 2.1032608695652173) internal successors, (387), 184 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 07:01:06,667 INFO L276 IsEmpty]: Start isEmpty. Operand 9744 states and 10490 transitions. [2021-11-03 07:01:06,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1496 [2021-11-03 07:01:06,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 07:01:06,687 INFO L514 BasicCegarLoop]: trace histogram [182, 182, 44, 44, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 07:01:06,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-03 07:01:06,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 07:01:06,904 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 07:01:06,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 07:01:06,904 INFO L85 PathProgramCache]: Analyzing trace with hash 986838451, now seen corresponding path program 3 times [2021-11-03 07:01:06,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 07:01:06,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616227161] [2021-11-03 07:01:06,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 07:01:06,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 07:01:07,003 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 07:01:07,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [984473834] [2021-11-03 07:01:07,004 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 07:01:07,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 07:01:07,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 07:01:07,005 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 07:01:07,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process Killed by 15