/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:24:20,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:24:20,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:24:20,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:24:20,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:24:20,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:24:20,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:24:20,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:24:20,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:24:20,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:24:20,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:24:20,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:24:20,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:24:20,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:24:20,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:24:20,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:24:20,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:24:20,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:24:20,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:24:20,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:24:20,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:24:20,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:24:20,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:24:20,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:24:20,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 11:24:20,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:24:20,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:24:20,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:24:20,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:24:20,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:24:20,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:24:20,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:24:20,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:24:20,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:24:20,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:24:20,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:24:20,841 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:24:20,892 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:24:20,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:24:20,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:24:20,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:24:20,897 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:24:20,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:24:20,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:24:20,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:24:20,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:24:20,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:24:20,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:24:20,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:24:20,900 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:24:20,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:24:20,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:24:20,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:24:20,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:24:20,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:24:20,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:24:20,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:24:20,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:24:20,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:24:20,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:24:20,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:24:20,903 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:24:20,903 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:24:21,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:24:21,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:24:21,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:24:21,358 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:24:21,359 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:24:21,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i [2020-12-22 11:24:21,445 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3f0f1288/c7520cef6d52478d80c7bd07ec2b0b61/FLAGe24dd3e84 [2020-12-22 11:24:22,138 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:24:22,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i [2020-12-22 11:24:22,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3f0f1288/c7520cef6d52478d80c7bd07ec2b0b61/FLAGe24dd3e84 [2020-12-22 11:24:22,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3f0f1288/c7520cef6d52478d80c7bd07ec2b0b61 [2020-12-22 11:24:22,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:24:22,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:24:22,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:24:22,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:24:22,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:24:22,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:24:22" (1/1) ... [2020-12-22 11:24:22,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13b5abbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:22, skipping insertion in model container [2020-12-22 11:24:22,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:24:22" (1/1) ... [2020-12-22 11:24:22,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:24:22,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:24:22,943 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i[30035,30048] [2020-12-22 11:24:22,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:24:22,986 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:24:23,053 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i[30035,30048] [2020-12-22 11:24:23,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:24:23,152 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:24:23,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:23 WrapperNode [2020-12-22 11:24:23,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:24:23,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:24:23,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:24:23,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:24:23,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:23" (1/1) ... [2020-12-22 11:24:23,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:23" (1/1) ... [2020-12-22 11:24:23,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:24:23,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:24:23,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:24:23,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:24:23,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:23" (1/1) ... [2020-12-22 11:24:23,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:23" (1/1) ... [2020-12-22 11:24:23,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:23" (1/1) ... [2020-12-22 11:24:23,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:23" (1/1) ... [2020-12-22 11:24:23,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:23" (1/1) ... [2020-12-22 11:24:23,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:23" (1/1) ... [2020-12-22 11:24:23,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:23" (1/1) ... [2020-12-22 11:24:23,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:24:23,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:24:23,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:24:23,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:24:23,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:24:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-12-22 11:24:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-12-22 11:24:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-12-22 11:24:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-12-22 11:24:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:24:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:24:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:24:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:24:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:24:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:24:23,447 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:24:23,916 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:24:23,916 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-22 11:24:23,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:24:23 BoogieIcfgContainer [2020-12-22 11:24:23,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:24:23,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:24:23,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:24:23,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:24:23,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:24:22" (1/3) ... [2020-12-22 11:24:23,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487f2cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:24:23, skipping insertion in model container [2020-12-22 11:24:23,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:24:23" (2/3) ... [2020-12-22 11:24:23,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487f2cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:24:23, skipping insertion in model container [2020-12-22 11:24:23,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:24:23" (3/3) ... [2020-12-22 11:24:23,927 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-2.i [2020-12-22 11:24:23,934 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:24:23,934 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:24:23,940 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:24:23,941 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:24:23,975 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,976 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,976 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,976 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,977 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,977 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,977 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,977 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,978 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,978 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,978 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,978 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,978 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,979 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,979 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,980 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,980 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,980 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,981 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,981 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,981 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,981 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,982 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,982 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,982 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,982 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,982 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,986 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,986 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,986 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,987 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,987 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,993 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,994 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,994 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,994 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,994 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,994 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:23,997 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:24:24,016 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:24:24,039 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:24:24,040 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:24:24,040 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:24:24,040 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:24:24,040 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:24:24,040 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:24:24,040 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:24:24,041 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:24:24,052 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:24:24,055 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 63 transitions, 136 flow [2020-12-22 11:24:24,058 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 63 transitions, 136 flow [2020-12-22 11:24:24,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 63 transitions, 136 flow [2020-12-22 11:24:24,103 INFO L129 PetriNetUnfolder]: 4/73 cut-off events. [2020-12-22 11:24:24,103 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:24:24,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 73 events. 4/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 90 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 53. Up to 4 conditions per place. [2020-12-22 11:24:24,110 INFO L116 LiptonReduction]: Number of co-enabled transitions 640 [2020-12-22 11:24:26,495 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-12-22 11:24:26,696 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-12-22 11:24:27,257 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-22 11:24:27,705 WARN L197 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 111 [2020-12-22 11:24:27,880 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-22 11:24:28,270 WARN L197 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 114 [2020-12-22 11:24:28,437 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-22 11:24:28,441 INFO L131 LiptonReduction]: Checked pairs total: 554 [2020-12-22 11:24:28,442 INFO L133 LiptonReduction]: Total number of compositions: 59 [2020-12-22 11:24:28,449 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-12-22 11:24:28,458 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-12-22 11:24:28,460 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-12-22 11:24:28,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 11:24:28,465 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:28,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 11:24:28,467 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:24:28,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:28,473 INFO L82 PathProgramCache]: Analyzing trace with hash 245417, now seen corresponding path program 1 times [2020-12-22 11:24:28,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:28,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147922863] [2020-12-22 11:24:28,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:28,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:28,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147922863] [2020-12-22 11:24:28,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:24:28,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:24:28,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603929054] [2020-12-22 11:24:28,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:24:28,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:28,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:24:28,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:24:28,794 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-12-22 11:24:28,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:28,831 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-12-22 11:24:28,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:24:28,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 11:24:28,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:28,843 INFO L225 Difference]: With dead ends: 35 [2020-12-22 11:24:28,843 INFO L226 Difference]: Without dead ends: 31 [2020-12-22 11:24:28,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:24:28,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-22 11:24:28,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-22 11:24:28,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-22 11:24:28,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-12-22 11:24:28,881 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-12-22 11:24:28,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:28,882 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-12-22 11:24:28,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:24:28,882 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-12-22 11:24:28,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 11:24:28,883 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:28,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:28,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:24:28,883 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:24:28,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:28,884 INFO L82 PathProgramCache]: Analyzing trace with hash -998701213, now seen corresponding path program 1 times [2020-12-22 11:24:28,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:28,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170703437] [2020-12-22 11:24:28,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:28,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:28,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170703437] [2020-12-22 11:24:28,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:24:28,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:24:28,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794104882] [2020-12-22 11:24:29,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:24:29,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:29,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:24:29,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:24:29,001 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 6 states. [2020-12-22 11:24:29,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:29,058 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2020-12-22 11:24:29,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:24:29,059 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2020-12-22 11:24:29,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:29,060 INFO L225 Difference]: With dead ends: 26 [2020-12-22 11:24:29,060 INFO L226 Difference]: Without dead ends: 24 [2020-12-22 11:24:29,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:24:29,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-12-22 11:24:29,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-12-22 11:24:29,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-22 11:24:29,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2020-12-22 11:24:29,066 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2020-12-22 11:24:29,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:29,066 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2020-12-22 11:24:29,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:24:29,067 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2020-12-22 11:24:29,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:24:29,067 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:29,067 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:29,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:24:29,068 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:24:29,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:29,068 INFO L82 PathProgramCache]: Analyzing trace with hash -894975147, now seen corresponding path program 1 times [2020-12-22 11:24:29,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:29,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562847118] [2020-12-22 11:24:29,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:24:29,105 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:24:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:24:29,132 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:24:29,165 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 11:24:29,165 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 11:24:29,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:24:29,166 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-12-22 11:24:29,167 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-12-22 11:24:29,181 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,181 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,181 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,182 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,182 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,182 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,182 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,182 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,182 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,182 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,183 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,183 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,183 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,183 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,183 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,183 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,184 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,184 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,184 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,184 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,184 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,184 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,184 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,185 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,185 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,185 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,185 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,185 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,186 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,186 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,186 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,187 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,187 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,187 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,188 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,188 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,189 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,189 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,189 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,189 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,192 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,194 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,194 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,194 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,196 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,196 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,198 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,198 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,198 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,198 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,198 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,198 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,199 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,200 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,200 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,200 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,200 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,200 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:29,201 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:24:29,202 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-22 11:24:29,203 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:24:29,203 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:24:29,203 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:24:29,203 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:24:29,203 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:24:29,204 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:24:29,204 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:24:29,204 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:24:29,206 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:24:29,206 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 80 transitions, 184 flow [2020-12-22 11:24:29,207 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 80 transitions, 184 flow [2020-12-22 11:24:29,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 80 transitions, 184 flow [2020-12-22 11:24:29,230 INFO L129 PetriNetUnfolder]: 5/94 cut-off events. [2020-12-22 11:24:29,230 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-12-22 11:24:29,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 94 events. 5/94 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 126 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 103. Up to 6 conditions per place. [2020-12-22 11:24:29,234 INFO L116 LiptonReduction]: Number of co-enabled transitions 980 [2020-12-22 11:24:31,693 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-12-22 11:24:31,808 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-22 11:24:32,079 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-12-22 11:24:32,192 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-22 11:24:32,344 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-22 11:24:32,490 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-22 11:24:32,671 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-12-22 11:24:32,829 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-22 11:24:32,833 INFO L131 LiptonReduction]: Checked pairs total: 1390 [2020-12-22 11:24:32,833 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-12-22 11:24:32,833 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 66 flow [2020-12-22 11:24:32,848 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 224 states. [2020-12-22 11:24:32,849 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-12-22 11:24:32,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 11:24:32,849 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:32,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 11:24:32,850 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:32,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:32,850 INFO L82 PathProgramCache]: Analyzing trace with hash 410870, now seen corresponding path program 1 times [2020-12-22 11:24:32,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:32,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123602807] [2020-12-22 11:24:32,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:32,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:32,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123602807] [2020-12-22 11:24:32,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:24:32,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:24:32,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792160831] [2020-12-22 11:24:32,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:24:32,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:32,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:24:32,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:24:32,926 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 3 states. [2020-12-22 11:24:32,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:32,956 INFO L93 Difference]: Finished difference Result 185 states and 459 transitions. [2020-12-22 11:24:32,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:24:32,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 11:24:32,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:32,962 INFO L225 Difference]: With dead ends: 185 [2020-12-22 11:24:32,962 INFO L226 Difference]: Without dead ends: 171 [2020-12-22 11:24:32,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:24:32,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-12-22 11:24:32,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2020-12-22 11:24:32,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-12-22 11:24:32,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 418 transitions. [2020-12-22 11:24:32,988 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 418 transitions. Word has length 3 [2020-12-22 11:24:32,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:32,988 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 418 transitions. [2020-12-22 11:24:32,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:24:32,989 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 418 transitions. [2020-12-22 11:24:32,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:24:32,989 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:32,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:32,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:24:32,990 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:32,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:32,991 INFO L82 PathProgramCache]: Analyzing trace with hash 806488971, now seen corresponding path program 1 times [2020-12-22 11:24:32,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:32,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122492080] [2020-12-22 11:24:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:33,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:33,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122492080] [2020-12-22 11:24:33,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:24:33,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:24:33,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501797630] [2020-12-22 11:24:33,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:24:33,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:33,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:24:33,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:24:33,062 INFO L87 Difference]: Start difference. First operand 171 states and 418 transitions. Second operand 7 states. [2020-12-22 11:24:33,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:33,215 INFO L93 Difference]: Finished difference Result 225 states and 491 transitions. [2020-12-22 11:24:33,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 11:24:33,216 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2020-12-22 11:24:33,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:33,220 INFO L225 Difference]: With dead ends: 225 [2020-12-22 11:24:33,221 INFO L226 Difference]: Without dead ends: 221 [2020-12-22 11:24:33,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:24:33,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-12-22 11:24:33,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 162. [2020-12-22 11:24:33,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-12-22 11:24:33,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 399 transitions. [2020-12-22 11:24:33,241 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 399 transitions. Word has length 9 [2020-12-22 11:24:33,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:33,242 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 399 transitions. [2020-12-22 11:24:33,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:24:33,242 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 399 transitions. [2020-12-22 11:24:33,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:24:33,243 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:33,243 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:33,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:24:33,246 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:33,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:33,247 INFO L82 PathProgramCache]: Analyzing trace with hash 827958856, now seen corresponding path program 1 times [2020-12-22 11:24:33,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:33,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427589791] [2020-12-22 11:24:33,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:33,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:33,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427589791] [2020-12-22 11:24:33,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94344731] [2020-12-22 11:24:33,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:33,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:24:33,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:33,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 11:24:33,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:24:33,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-22 11:24:33,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693640589] [2020-12-22 11:24:33,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:24:33,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:33,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:24:33,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:24:33,575 INFO L87 Difference]: Start difference. First operand 162 states and 399 transitions. Second operand 5 states. [2020-12-22 11:24:33,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:33,679 INFO L93 Difference]: Finished difference Result 189 states and 423 transitions. [2020-12-22 11:24:33,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:24:33,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-22 11:24:33,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:33,684 INFO L225 Difference]: With dead ends: 189 [2020-12-22 11:24:33,684 INFO L226 Difference]: Without dead ends: 185 [2020-12-22 11:24:33,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-12-22 11:24:33,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-12-22 11:24:33,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 153. [2020-12-22 11:24:33,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-12-22 11:24:33,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 367 transitions. [2020-12-22 11:24:33,722 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 367 transitions. Word has length 13 [2020-12-22 11:24:33,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:33,727 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 367 transitions. [2020-12-22 11:24:33,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:24:33,727 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 367 transitions. [2020-12-22 11:24:33,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:24:33,729 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:33,729 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:33,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 11:24:33,945 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:33,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:33,946 INFO L82 PathProgramCache]: Analyzing trace with hash -105954365, now seen corresponding path program 1 times [2020-12-22 11:24:33,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:33,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999538084] [2020-12-22 11:24:33,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:24:33,969 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:24:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:24:33,996 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:24:34,009 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 11:24:34,009 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 11:24:34,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:24:34,010 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-12-22 11:24:34,011 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-12-22 11:24:34,025 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,025 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,026 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,026 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,026 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,026 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,026 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,026 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,027 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,027 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,027 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,027 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,027 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,027 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,028 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,028 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,028 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,028 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,028 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,028 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,028 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,029 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,029 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,029 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,029 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,029 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,029 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,030 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,030 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,030 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,030 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,030 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,030 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,030 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,031 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,031 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,031 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,031 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,031 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,031 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,031 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,032 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,032 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,032 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,032 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,032 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,033 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,033 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,033 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,033 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,033 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,033 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,034 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,034 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,034 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,034 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,034 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,034 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,034 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,035 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,035 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,035 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,035 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,036 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,036 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,036 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,036 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,036 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,037 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,037 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,038 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,042 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,042 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,042 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,043 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,043 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,044 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,045 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,045 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,045 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,045 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,046 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,046 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,047 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,047 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,047 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,048 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,048 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,048 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,049 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,049 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,049 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,050 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,050 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,050 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,051 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,051 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,051 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,052 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,052 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,052 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,053 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,053 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,053 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:34,054 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:24:34,054 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-22 11:24:34,055 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:24:34,055 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:24:34,055 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:24:34,055 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:24:34,055 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:24:34,056 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:24:34,056 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:24:34,056 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:24:34,058 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:24:34,058 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 97 transitions, 236 flow [2020-12-22 11:24:34,058 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 97 transitions, 236 flow [2020-12-22 11:24:34,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 97 transitions, 236 flow [2020-12-22 11:24:34,086 INFO L129 PetriNetUnfolder]: 6/115 cut-off events. [2020-12-22 11:24:34,086 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-12-22 11:24:34,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 115 events. 6/115 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 171 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 129. Up to 8 conditions per place. [2020-12-22 11:24:34,111 INFO L116 LiptonReduction]: Number of co-enabled transitions 1380 [2020-12-22 11:24:37,357 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-12-22 11:24:37,519 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-22 11:24:37,890 WARN L197 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-12-22 11:24:38,062 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-22 11:24:38,071 INFO L131 LiptonReduction]: Checked pairs total: 1830 [2020-12-22 11:24:38,072 INFO L133 LiptonReduction]: Total number of compositions: 86 [2020-12-22 11:24:38,073 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 27 transitions, 96 flow [2020-12-22 11:24:38,108 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 683 states. [2020-12-22 11:24:38,108 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states. [2020-12-22 11:24:38,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 11:24:38,109 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:38,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 11:24:38,109 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:38,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:38,110 INFO L82 PathProgramCache]: Analyzing trace with hash 608948, now seen corresponding path program 1 times [2020-12-22 11:24:38,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:38,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472514809] [2020-12-22 11:24:38,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:38,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472514809] [2020-12-22 11:24:38,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:24:38,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:24:38,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388478456] [2020-12-22 11:24:38,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:24:38,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:38,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:24:38,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:24:38,201 INFO L87 Difference]: Start difference. First operand 683 states. Second operand 3 states. [2020-12-22 11:24:38,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:38,237 INFO L93 Difference]: Finished difference Result 600 states and 1886 transitions. [2020-12-22 11:24:38,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:24:38,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 11:24:38,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:38,244 INFO L225 Difference]: With dead ends: 600 [2020-12-22 11:24:38,244 INFO L226 Difference]: Without dead ends: 559 [2020-12-22 11:24:38,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:24:38,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-12-22 11:24:38,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2020-12-22 11:24:38,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-12-22 11:24:38,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1737 transitions. [2020-12-22 11:24:38,281 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1737 transitions. Word has length 3 [2020-12-22 11:24:38,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:38,281 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 1737 transitions. [2020-12-22 11:24:38,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:24:38,281 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1737 transitions. [2020-12-22 11:24:38,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:24:38,282 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:38,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:38,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:24:38,282 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:38,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:38,283 INFO L82 PathProgramCache]: Analyzing trace with hash -242150196, now seen corresponding path program 1 times [2020-12-22 11:24:38,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:38,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591313367] [2020-12-22 11:24:38,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:38,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:38,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591313367] [2020-12-22 11:24:38,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:24:38,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:24:38,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312985191] [2020-12-22 11:24:38,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:24:38,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:38,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:24:38,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:24:38,354 INFO L87 Difference]: Start difference. First operand 559 states and 1737 transitions. Second operand 7 states. [2020-12-22 11:24:38,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:38,506 INFO L93 Difference]: Finished difference Result 933 states and 2580 transitions. [2020-12-22 11:24:38,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 11:24:38,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2020-12-22 11:24:38,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:38,515 INFO L225 Difference]: With dead ends: 933 [2020-12-22 11:24:38,515 INFO L226 Difference]: Without dead ends: 928 [2020-12-22 11:24:38,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:24:38,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2020-12-22 11:24:38,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 585. [2020-12-22 11:24:38,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-12-22 11:24:38,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1832 transitions. [2020-12-22 11:24:38,548 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1832 transitions. Word has length 9 [2020-12-22 11:24:38,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:38,548 INFO L481 AbstractCegarLoop]: Abstraction has 585 states and 1832 transitions. [2020-12-22 11:24:38,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:24:38,548 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1832 transitions. [2020-12-22 11:24:38,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:24:38,549 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:38,549 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:38,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:24:38,550 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:38,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:38,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1898841947, now seen corresponding path program 1 times [2020-12-22 11:24:38,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:38,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285606682] [2020-12-22 11:24:38,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:38,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:38,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285606682] [2020-12-22 11:24:38,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910272382] [2020-12-22 11:24:38,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:38,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:24:38,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:38,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 11:24:38,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:24:38,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-22 11:24:38,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948279496] [2020-12-22 11:24:38,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:24:38,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:38,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:24:38,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:24:38,812 INFO L87 Difference]: Start difference. First operand 585 states and 1832 transitions. Second operand 5 states. [2020-12-22 11:24:38,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:38,909 INFO L93 Difference]: Finished difference Result 843 states and 2406 transitions. [2020-12-22 11:24:38,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:24:38,910 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-22 11:24:38,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:38,916 INFO L225 Difference]: With dead ends: 843 [2020-12-22 11:24:38,917 INFO L226 Difference]: Without dead ends: 836 [2020-12-22 11:24:38,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-12-22 11:24:38,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-12-22 11:24:38,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 611. [2020-12-22 11:24:38,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-12-22 11:24:38,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1906 transitions. [2020-12-22 11:24:38,946 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1906 transitions. Word has length 13 [2020-12-22 11:24:38,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:38,947 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 1906 transitions. [2020-12-22 11:24:38,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:24:38,947 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1906 transitions. [2020-12-22 11:24:38,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:24:38,948 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:38,948 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:39,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-22 11:24:39,162 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:39,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:39,163 INFO L82 PathProgramCache]: Analyzing trace with hash -800464392, now seen corresponding path program 1 times [2020-12-22 11:24:39,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:39,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366938687] [2020-12-22 11:24:39,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:39,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:39,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366938687] [2020-12-22 11:24:39,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982758759] [2020-12-22 11:24:39,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:39,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:24:39,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:39,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:39,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:24:39,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2020-12-22 11:24:39,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202156180] [2020-12-22 11:24:39,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-22 11:24:39,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:39,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-22 11:24:39,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2020-12-22 11:24:39,505 INFO L87 Difference]: Start difference. First operand 611 states and 1906 transitions. Second operand 18 states. [2020-12-22 11:24:40,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:40,562 INFO L93 Difference]: Finished difference Result 1804 states and 4622 transitions. [2020-12-22 11:24:40,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-12-22 11:24:40,562 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 15 [2020-12-22 11:24:40,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:40,575 INFO L225 Difference]: With dead ends: 1804 [2020-12-22 11:24:40,575 INFO L226 Difference]: Without dead ends: 1790 [2020-12-22 11:24:40,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=438, Invalid=1454, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 11:24:40,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2020-12-22 11:24:40,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 591. [2020-12-22 11:24:40,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-12-22 11:24:40,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1840 transitions. [2020-12-22 11:24:40,614 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1840 transitions. Word has length 15 [2020-12-22 11:24:40,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:40,615 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 1840 transitions. [2020-12-22 11:24:40,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-22 11:24:40,615 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1840 transitions. [2020-12-22 11:24:40,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:24:40,616 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:40,616 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:40,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-22 11:24:40,830 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:40,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:40,831 INFO L82 PathProgramCache]: Analyzing trace with hash -573997344, now seen corresponding path program 2 times [2020-12-22 11:24:40,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:40,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239377261] [2020-12-22 11:24:40,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:40,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:40,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239377261] [2020-12-22 11:24:40,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863073544] [2020-12-22 11:24:40,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:41,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:24:41,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:24:41,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 11:24:41,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:41,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 11:24:41,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:24:41,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 13 [2020-12-22 11:24:41,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344291845] [2020-12-22 11:24:41,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:24:41,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:41,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:24:41,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-12-22 11:24:41,212 INFO L87 Difference]: Start difference. First operand 591 states and 1840 transitions. Second operand 7 states. [2020-12-22 11:24:41,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:41,506 INFO L93 Difference]: Finished difference Result 1053 states and 2807 transitions. [2020-12-22 11:24:41,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:24:41,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-12-22 11:24:41,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:41,514 INFO L225 Difference]: With dead ends: 1053 [2020-12-22 11:24:41,515 INFO L226 Difference]: Without dead ends: 1045 [2020-12-22 11:24:41,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2020-12-22 11:24:41,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2020-12-22 11:24:41,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 536. [2020-12-22 11:24:41,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-12-22 11:24:41,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1688 transitions. [2020-12-22 11:24:41,566 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1688 transitions. Word has length 15 [2020-12-22 11:24:41,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:41,567 INFO L481 AbstractCegarLoop]: Abstraction has 536 states and 1688 transitions. [2020-12-22 11:24:41,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:24:41,567 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1688 transitions. [2020-12-22 11:24:41,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:24:41,568 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:41,568 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:41,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:41,783 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:41,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:41,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1518312316, now seen corresponding path program 1 times [2020-12-22 11:24:41,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:41,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695446343] [2020-12-22 11:24:41,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:41,859 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 11:24:41,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695446343] [2020-12-22 11:24:41,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63371306] [2020-12-22 11:24:41,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:41,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:24:41,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:42,038 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:24:42,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:24:42,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-22 11:24:42,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305433322] [2020-12-22 11:24:42,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:24:42,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:42,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:24:42,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:24:42,040 INFO L87 Difference]: Start difference. First operand 536 states and 1688 transitions. Second operand 5 states. [2020-12-22 11:24:42,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:42,127 INFO L93 Difference]: Finished difference Result 736 states and 2123 transitions. [2020-12-22 11:24:42,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:24:42,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-22 11:24:42,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:42,133 INFO L225 Difference]: With dead ends: 736 [2020-12-22 11:24:42,133 INFO L226 Difference]: Without dead ends: 728 [2020-12-22 11:24:42,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-12-22 11:24:42,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-12-22 11:24:42,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 549. [2020-12-22 11:24:42,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2020-12-22 11:24:42,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 1684 transitions. [2020-12-22 11:24:42,157 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 1684 transitions. Word has length 17 [2020-12-22 11:24:42,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:42,157 INFO L481 AbstractCegarLoop]: Abstraction has 549 states and 1684 transitions. [2020-12-22 11:24:42,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:24:42,157 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 1684 transitions. [2020-12-22 11:24:42,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:24:42,158 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:42,159 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:42,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-22 11:24:42,373 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:24:42,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:42,374 INFO L82 PathProgramCache]: Analyzing trace with hash 173383506, now seen corresponding path program 1 times [2020-12-22 11:24:42,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:42,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028901292] [2020-12-22 11:24:42,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:24:42,390 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:24:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:24:42,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:24:42,420 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 11:24:42,420 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 11:24:42,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 11:24:42,421 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-12-22 11:24:42,421 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-12-22 11:24:42,445 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,445 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,446 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,446 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,446 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,446 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,446 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,446 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,447 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,447 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,447 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,447 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,447 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,448 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,448 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,448 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,448 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,449 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,449 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,449 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,449 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,449 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,449 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,449 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,449 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,449 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,450 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,450 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,450 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,450 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,450 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,450 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,450 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,450 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,450 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,451 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,451 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,451 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,451 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,451 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,451 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,451 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,451 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,452 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,452 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,452 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,452 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,452 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,452 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,452 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,452 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,452 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,452 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,453 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,453 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,453 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,453 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,453 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,453 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,453 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,454 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,454 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,454 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,454 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,454 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,454 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,454 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,454 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,455 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,455 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,455 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,455 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,455 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,455 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,455 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,455 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,456 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,456 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,456 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,456 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,456 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,456 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,457 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,457 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,457 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,457 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,457 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,457 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,458 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,458 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,458 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,458 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,458 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,458 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,458 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,459 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,459 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,459 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,459 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,459 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,459 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,459 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,459 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,460 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,460 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,460 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,460 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,460 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,460 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,460 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,460 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,461 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,461 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,461 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,461 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,461 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,461 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,461 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,461 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,462 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,462 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,462 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,462 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,462 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,462 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,462 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,462 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,462 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,463 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,463 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,463 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,463 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,463 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,464 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,464 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,464 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,465 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,465 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,465 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,466 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,466 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,467 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,467 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,467 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,467 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,467 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,468 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,468 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,469 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,469 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,469 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,470 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,470 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,470 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,472 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,472 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,472 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,474 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,474 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,474 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,474 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,475 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,475 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,475 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,475 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,476 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,476 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:24:42,477 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:24:42,477 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 11:24:42,478 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:24:42,478 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:24:42,478 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:24:42,478 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:24:42,478 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:24:42,478 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:24:42,478 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:24:42,478 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:24:42,481 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:24:42,481 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 114 transitions, 292 flow [2020-12-22 11:24:42,481 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 114 transitions, 292 flow [2020-12-22 11:24:42,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 114 transitions, 292 flow [2020-12-22 11:24:42,514 INFO L129 PetriNetUnfolder]: 7/136 cut-off events. [2020-12-22 11:24:42,515 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-12-22 11:24:42,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 136 events. 7/136 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 207 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 156. Up to 10 conditions per place. [2020-12-22 11:24:42,520 INFO L116 LiptonReduction]: Number of co-enabled transitions 1840 [2020-12-22 11:24:45,390 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-22 11:24:45,790 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-12-22 11:24:46,244 WARN L197 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-12-22 11:24:46,407 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-22 11:24:46,766 WARN L197 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-12-22 11:24:46,947 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-22 11:24:46,980 INFO L131 LiptonReduction]: Checked pairs total: 2897 [2020-12-22 11:24:46,980 INFO L133 LiptonReduction]: Total number of compositions: 107 [2020-12-22 11:24:46,980 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 33 transitions, 130 flow [2020-12-22 11:24:47,113 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2060 states. [2020-12-22 11:24:47,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states. [2020-12-22 11:24:47,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 11:24:47,113 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:47,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 11:24:47,114 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:24:47,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:47,114 INFO L82 PathProgramCache]: Analyzing trace with hash 844595, now seen corresponding path program 1 times [2020-12-22 11:24:47,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:47,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031042736] [2020-12-22 11:24:47,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:47,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:47,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031042736] [2020-12-22 11:24:47,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:24:47,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:24:47,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294166362] [2020-12-22 11:24:47,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:24:47,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:47,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:24:47,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:24:47,144 INFO L87 Difference]: Start difference. First operand 2060 states. Second operand 3 states. [2020-12-22 11:24:47,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:47,188 INFO L93 Difference]: Finished difference Result 1889 states and 7217 transitions. [2020-12-22 11:24:47,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:24:47,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 11:24:47,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:47,206 INFO L225 Difference]: With dead ends: 1889 [2020-12-22 11:24:47,206 INFO L226 Difference]: Without dead ends: 1767 [2020-12-22 11:24:47,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:24:47,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2020-12-22 11:24:47,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2020-12-22 11:24:47,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2020-12-22 11:24:47,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 6690 transitions. [2020-12-22 11:24:47,290 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 6690 transitions. Word has length 3 [2020-12-22 11:24:47,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:47,290 INFO L481 AbstractCegarLoop]: Abstraction has 1767 states and 6690 transitions. [2020-12-22 11:24:47,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:24:47,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 6690 transitions. [2020-12-22 11:24:47,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:24:47,291 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:47,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:47,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 11:24:47,291 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:24:47,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:47,292 INFO L82 PathProgramCache]: Analyzing trace with hash 608853316, now seen corresponding path program 1 times [2020-12-22 11:24:47,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:47,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884822622] [2020-12-22 11:24:47,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:47,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:47,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884822622] [2020-12-22 11:24:47,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:24:47,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:24:47,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758021533] [2020-12-22 11:24:47,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:24:47,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:47,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:24:47,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:24:47,349 INFO L87 Difference]: Start difference. First operand 1767 states and 6690 transitions. Second operand 7 states. [2020-12-22 11:24:47,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:47,500 INFO L93 Difference]: Finished difference Result 3381 states and 11559 transitions. [2020-12-22 11:24:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 11:24:47,500 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2020-12-22 11:24:47,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:47,528 INFO L225 Difference]: With dead ends: 3381 [2020-12-22 11:24:47,528 INFO L226 Difference]: Without dead ends: 3375 [2020-12-22 11:24:47,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:24:47,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3375 states. [2020-12-22 11:24:47,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3375 to 1966. [2020-12-22 11:24:47,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2020-12-22 11:24:47,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 7503 transitions. [2020-12-22 11:24:47,679 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 7503 transitions. Word has length 9 [2020-12-22 11:24:47,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:47,680 INFO L481 AbstractCegarLoop]: Abstraction has 1966 states and 7503 transitions. [2020-12-22 11:24:47,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:24:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 7503 transitions. [2020-12-22 11:24:47,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:24:47,680 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:47,680 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:47,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 11:24:47,681 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:24:47,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:47,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1705235461, now seen corresponding path program 1 times [2020-12-22 11:24:47,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:47,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691528121] [2020-12-22 11:24:47,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:47,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:47,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691528121] [2020-12-22 11:24:47,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837722365] [2020-12-22 11:24:47,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:47,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:24:47,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:47,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 11:24:47,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:24:47,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-22 11:24:47,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789626474] [2020-12-22 11:24:47,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:24:47,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:47,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:24:47,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:24:47,924 INFO L87 Difference]: Start difference. First operand 1966 states and 7503 transitions. Second operand 5 states. [2020-12-22 11:24:48,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:48,061 INFO L93 Difference]: Finished difference Result 3204 states and 11312 transitions. [2020-12-22 11:24:48,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:24:48,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-22 11:24:48,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:48,087 INFO L225 Difference]: With dead ends: 3204 [2020-12-22 11:24:48,088 INFO L226 Difference]: Without dead ends: 3194 [2020-12-22 11:24:48,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-12-22 11:24:48,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2020-12-22 11:24:48,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2200. [2020-12-22 11:24:48,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2200 states. [2020-12-22 11:24:48,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 8453 transitions. [2020-12-22 11:24:48,190 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 8453 transitions. Word has length 13 [2020-12-22 11:24:48,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:48,190 INFO L481 AbstractCegarLoop]: Abstraction has 2200 states and 8453 transitions. [2020-12-22 11:24:48,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:24:48,191 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 8453 transitions. [2020-12-22 11:24:48,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:24:48,191 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:48,191 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:48,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-22 11:24:48,405 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:24:48,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:48,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1691179042, now seen corresponding path program 1 times [2020-12-22 11:24:48,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:48,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277435247] [2020-12-22 11:24:48,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:48,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:48,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277435247] [2020-12-22 11:24:48,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40722171] [2020-12-22 11:24:48,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:48,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 11:24:48,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:48,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:48,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:24:48,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 13 [2020-12-22 11:24:48,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610751121] [2020-12-22 11:24:48,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-22 11:24:48,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:48,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-22 11:24:48,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2020-12-22 11:24:48,725 INFO L87 Difference]: Start difference. First operand 2200 states and 8453 transitions. Second operand 15 states. [2020-12-22 11:24:49,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:49,697 INFO L93 Difference]: Finished difference Result 5624 states and 17765 transitions. [2020-12-22 11:24:49,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-12-22 11:24:49,698 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 15 [2020-12-22 11:24:49,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:49,720 INFO L225 Difference]: With dead ends: 5624 [2020-12-22 11:24:49,721 INFO L226 Difference]: Without dead ends: 5605 [2020-12-22 11:24:49,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2020-12-22 11:24:49,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5605 states. [2020-12-22 11:24:49,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5605 to 2157. [2020-12-22 11:24:49,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2157 states. [2020-12-22 11:24:49,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 8278 transitions. [2020-12-22 11:24:49,856 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 8278 transitions. Word has length 15 [2020-12-22 11:24:49,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:49,856 INFO L481 AbstractCegarLoop]: Abstraction has 2157 states and 8278 transitions. [2020-12-22 11:24:49,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-22 11:24:49,856 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 8278 transitions. [2020-12-22 11:24:49,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:24:49,857 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:49,857 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:50,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-22 11:24:50,072 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:24:50,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:50,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1946238878, now seen corresponding path program 2 times [2020-12-22 11:24:50,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:50,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778163338] [2020-12-22 11:24:50,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:50,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:50,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778163338] [2020-12-22 11:24:50,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443290295] [2020-12-22 11:24:50,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:50,301 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:24:50,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:24:50,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 11:24:50,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:50,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 11:24:50,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:24:50,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 13 [2020-12-22 11:24:50,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595026224] [2020-12-22 11:24:50,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:24:50,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:50,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:24:50,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-12-22 11:24:50,438 INFO L87 Difference]: Start difference. First operand 2157 states and 8278 transitions. Second operand 7 states. [2020-12-22 11:24:50,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:50,802 INFO L93 Difference]: Finished difference Result 4612 states and 15111 transitions. [2020-12-22 11:24:50,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:24:50,802 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-12-22 11:24:50,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:50,820 INFO L225 Difference]: With dead ends: 4612 [2020-12-22 11:24:50,821 INFO L226 Difference]: Without dead ends: 4601 [2020-12-22 11:24:50,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2020-12-22 11:24:50,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4601 states. [2020-12-22 11:24:50,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4601 to 2035. [2020-12-22 11:24:50,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2035 states. [2020-12-22 11:24:50,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 7845 transitions. [2020-12-22 11:24:50,931 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 7845 transitions. Word has length 15 [2020-12-22 11:24:50,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:50,931 INFO L481 AbstractCegarLoop]: Abstraction has 2035 states and 7845 transitions. [2020-12-22 11:24:50,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:24:50,932 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 7845 transitions. [2020-12-22 11:24:50,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:24:50,932 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:50,932 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:51,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:51,148 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:24:51,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:51,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1847020699, now seen corresponding path program 1 times [2020-12-22 11:24:51,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:51,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733054994] [2020-12-22 11:24:51,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:51,250 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 11:24:51,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733054994] [2020-12-22 11:24:51,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212897131] [2020-12-22 11:24:51,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:51,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:24:51,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:51,414 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:24:51,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:24:51,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-22 11:24:51,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902009373] [2020-12-22 11:24:51,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:24:51,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:51,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:24:51,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:24:51,417 INFO L87 Difference]: Start difference. First operand 2035 states and 7845 transitions. Second operand 5 states. [2020-12-22 11:24:51,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:51,524 INFO L93 Difference]: Finished difference Result 3265 states and 11681 transitions. [2020-12-22 11:24:51,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:24:51,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-22 11:24:51,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:51,538 INFO L225 Difference]: With dead ends: 3265 [2020-12-22 11:24:51,538 INFO L226 Difference]: Without dead ends: 3250 [2020-12-22 11:24:51,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-12-22 11:24:51,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2020-12-22 11:24:51,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 2281. [2020-12-22 11:24:51,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2281 states. [2020-12-22 11:24:51,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 8755 transitions. [2020-12-22 11:24:51,673 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 8755 transitions. Word has length 17 [2020-12-22 11:24:51,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:51,673 INFO L481 AbstractCegarLoop]: Abstraction has 2281 states and 8755 transitions. [2020-12-22 11:24:51,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:24:51,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 8755 transitions. [2020-12-22 11:24:51,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 11:24:51,674 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:51,674 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:51,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:51,888 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:24:51,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:51,889 INFO L82 PathProgramCache]: Analyzing trace with hash -440983810, now seen corresponding path program 1 times [2020-12-22 11:24:51,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:51,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43985989] [2020-12-22 11:24:51,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:51,982 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:51,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43985989] [2020-12-22 11:24:51,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458361216] [2020-12-22 11:24:51,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:52,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 11:24:52,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:52,186 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 11:24:52,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:24:52,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 14 [2020-12-22 11:24:52,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337727380] [2020-12-22 11:24:52,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-22 11:24:52,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:52,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-22 11:24:52,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-12-22 11:24:52,189 INFO L87 Difference]: Start difference. First operand 2281 states and 8755 transitions. Second operand 16 states. [2020-12-22 11:24:53,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:53,264 INFO L93 Difference]: Finished difference Result 5138 states and 16882 transitions. [2020-12-22 11:24:53,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-22 11:24:53,264 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2020-12-22 11:24:53,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:53,284 INFO L225 Difference]: With dead ends: 5138 [2020-12-22 11:24:53,284 INFO L226 Difference]: Without dead ends: 5116 [2020-12-22 11:24:53,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=286, Invalid=904, Unknown=0, NotChecked=0, Total=1190 [2020-12-22 11:24:53,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5116 states. [2020-12-22 11:24:53,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5116 to 2305. [2020-12-22 11:24:53,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-12-22 11:24:53,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 8815 transitions. [2020-12-22 11:24:53,443 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 8815 transitions. Word has length 19 [2020-12-22 11:24:53,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:53,443 INFO L481 AbstractCegarLoop]: Abstraction has 2305 states and 8815 transitions. [2020-12-22 11:24:53,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-22 11:24:53,443 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 8815 transitions. [2020-12-22 11:24:53,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 11:24:53,445 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:53,445 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:53,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:53,658 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:24:53,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:53,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1798913580, now seen corresponding path program 1 times [2020-12-22 11:24:53,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:53,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602790341] [2020-12-22 11:24:53,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:53,783 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:53,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602790341] [2020-12-22 11:24:53,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51213654] [2020-12-22 11:24:53,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:53,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 11:24:53,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:54,075 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:54,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:24:54,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2020-12-22 11:24:54,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440461264] [2020-12-22 11:24:54,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-22 11:24:54,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:54,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-22 11:24:54,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2020-12-22 11:24:54,077 INFO L87 Difference]: Start difference. First operand 2305 states and 8815 transitions. Second operand 20 states. [2020-12-22 11:24:55,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:55,492 INFO L93 Difference]: Finished difference Result 6194 states and 20133 transitions. [2020-12-22 11:24:55,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:24:55,493 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 19 [2020-12-22 11:24:55,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:55,509 INFO L225 Difference]: With dead ends: 6194 [2020-12-22 11:24:55,509 INFO L226 Difference]: Without dead ends: 6179 [2020-12-22 11:24:55,510 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=448, Invalid=1532, Unknown=0, NotChecked=0, Total=1980 [2020-12-22 11:24:55,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6179 states. [2020-12-22 11:24:55,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6179 to 2314. [2020-12-22 11:24:55,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2314 states. [2020-12-22 11:24:55,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 8833 transitions. [2020-12-22 11:24:55,652 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 8833 transitions. Word has length 19 [2020-12-22 11:24:55,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:55,653 INFO L481 AbstractCegarLoop]: Abstraction has 2314 states and 8833 transitions. [2020-12-22 11:24:55,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-22 11:24:55,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 8833 transitions. [2020-12-22 11:24:55,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 11:24:55,654 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:55,655 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:55,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-12-22 11:24:55,868 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:24:55,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:55,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1165401684, now seen corresponding path program 2 times [2020-12-22 11:24:55,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:55,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288538034] [2020-12-22 11:24:55,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:55,971 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:55,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288538034] [2020-12-22 11:24:55,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839621714] [2020-12-22 11:24:55,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:56,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:24:56,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:24:56,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 11:24:56,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:56,197 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:24:56,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:24:56,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2020-12-22 11:24:56,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622284677] [2020-12-22 11:24:56,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:24:56,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:56,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:24:56,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-12-22 11:24:56,199 INFO L87 Difference]: Start difference. First operand 2314 states and 8833 transitions. Second operand 7 states. [2020-12-22 11:24:56,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:56,545 INFO L93 Difference]: Finished difference Result 4982 states and 16559 transitions. [2020-12-22 11:24:56,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:24:56,546 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-22 11:24:56,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:56,556 INFO L225 Difference]: With dead ends: 4982 [2020-12-22 11:24:56,557 INFO L226 Difference]: Without dead ends: 4965 [2020-12-22 11:24:56,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2020-12-22 11:24:56,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4965 states. [2020-12-22 11:24:56,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4965 to 2231. [2020-12-22 11:24:56,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2020-12-22 11:24:56,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 8528 transitions. [2020-12-22 11:24:56,692 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 8528 transitions. Word has length 19 [2020-12-22 11:24:56,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:56,693 INFO L481 AbstractCegarLoop]: Abstraction has 2231 states and 8528 transitions. [2020-12-22 11:24:56,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:24:56,693 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 8528 transitions. [2020-12-22 11:24:56,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 11:24:56,695 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:56,695 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:56,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:56,911 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:24:56,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:56,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1165408318, now seen corresponding path program 2 times [2020-12-22 11:24:56,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:56,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489958801] [2020-12-22 11:24:56,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:57,029 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:57,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489958801] [2020-12-22 11:24:57,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314185387] [2020-12-22 11:24:57,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:57,128 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:24:57,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:24:57,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 11:24:57,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:57,270 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:24:57,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:24:57,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2020-12-22 11:24:57,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575721549] [2020-12-22 11:24:57,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:24:57,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:57,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:24:57,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-12-22 11:24:57,272 INFO L87 Difference]: Start difference. First operand 2231 states and 8528 transitions. Second operand 7 states. [2020-12-22 11:24:57,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:24:57,640 INFO L93 Difference]: Finished difference Result 4772 states and 15819 transitions. [2020-12-22 11:24:57,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:24:57,641 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-22 11:24:57,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:24:57,651 INFO L225 Difference]: With dead ends: 4772 [2020-12-22 11:24:57,652 INFO L226 Difference]: Without dead ends: 4755 [2020-12-22 11:24:57,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2020-12-22 11:24:57,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4755 states. [2020-12-22 11:24:57,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4755 to 2161. [2020-12-22 11:24:57,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2161 states. [2020-12-22 11:24:57,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 8280 transitions. [2020-12-22 11:24:57,745 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 8280 transitions. Word has length 19 [2020-12-22 11:24:57,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:24:57,745 INFO L481 AbstractCegarLoop]: Abstraction has 2161 states and 8280 transitions. [2020-12-22 11:24:57,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:24:57,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 8280 transitions. [2020-12-22 11:24:57,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:24:57,747 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:24:57,747 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:24:57,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-12-22 11:24:57,962 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:24:57,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:24:57,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1547991177, now seen corresponding path program 1 times [2020-12-22 11:24:57,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:24:57,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107229252] [2020-12-22 11:24:57,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:24:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:58,093 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 11:24:58,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107229252] [2020-12-22 11:24:58,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068428043] [2020-12-22 11:24:58,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:24:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:24:58,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:24:58,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:24:58,379 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:24:58,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:24:58,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 17 [2020-12-22 11:24:58,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620258266] [2020-12-22 11:24:58,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-22 11:24:58,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:24:58,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-22 11:24:58,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2020-12-22 11:24:58,381 INFO L87 Difference]: Start difference. First operand 2161 states and 8280 transitions. Second operand 19 states. [2020-12-22 11:25:01,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:01,863 INFO L93 Difference]: Finished difference Result 8813 states and 26214 transitions. [2020-12-22 11:25:01,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-12-22 11:25:01,863 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 21 [2020-12-22 11:25:01,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:01,878 INFO L225 Difference]: With dead ends: 8813 [2020-12-22 11:25:01,878 INFO L226 Difference]: Without dead ends: 8769 [2020-12-22 11:25:01,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2831 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1527, Invalid=6663, Unknown=0, NotChecked=0, Total=8190 [2020-12-22 11:25:01,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8769 states. [2020-12-22 11:25:01,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8769 to 2117. [2020-12-22 11:25:01,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2117 states. [2020-12-22 11:25:01,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 8106 transitions. [2020-12-22 11:25:01,982 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 8106 transitions. Word has length 21 [2020-12-22 11:25:01,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:01,983 INFO L481 AbstractCegarLoop]: Abstraction has 2117 states and 8106 transitions. [2020-12-22 11:25:01,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-22 11:25:01,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 8106 transitions. [2020-12-22 11:25:01,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:25:01,984 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:01,984 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:02,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:02,190 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:25:02,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:02,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1416324087, now seen corresponding path program 2 times [2020-12-22 11:25:02,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:02,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814401897] [2020-12-22 11:25:02,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:02,315 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:02,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814401897] [2020-12-22 11:25:02,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681046338] [2020-12-22 11:25:02,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:02,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 11:25:02,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:25:02,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:25:02,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:02,640 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 11:25:02,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:25:02,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 18 [2020-12-22 11:25:02,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857896290] [2020-12-22 11:25:02,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-22 11:25:02,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:02,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-22 11:25:02,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2020-12-22 11:25:02,642 INFO L87 Difference]: Start difference. First operand 2117 states and 8106 transitions. Second operand 20 states. [2020-12-22 11:25:05,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:05,968 INFO L93 Difference]: Finished difference Result 7518 states and 22214 transitions. [2020-12-22 11:25:05,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-12-22 11:25:05,968 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 21 [2020-12-22 11:25:05,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:05,986 INFO L225 Difference]: With dead ends: 7518 [2020-12-22 11:25:05,987 INFO L226 Difference]: Without dead ends: 7497 [2020-12-22 11:25:05,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2354 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1419, Invalid=5721, Unknown=0, NotChecked=0, Total=7140 [2020-12-22 11:25:06,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7497 states. [2020-12-22 11:25:06,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7497 to 2085. [2020-12-22 11:25:06,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2085 states. [2020-12-22 11:25:06,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 7975 transitions. [2020-12-22 11:25:06,123 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 7975 transitions. Word has length 21 [2020-12-22 11:25:06,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:06,123 INFO L481 AbstractCegarLoop]: Abstraction has 2085 states and 7975 transitions. [2020-12-22 11:25:06,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-22 11:25:06,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 7975 transitions. [2020-12-22 11:25:06,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:25:06,127 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:06,128 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:06,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-12-22 11:25:06,342 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:25:06,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:06,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1549185225, now seen corresponding path program 3 times [2020-12-22 11:25:06,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:06,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70846460] [2020-12-22 11:25:06,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:06,469 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:06,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70846460] [2020-12-22 11:25:06,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052462172] [2020-12-22 11:25:06,470 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:06,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-22 11:25:06,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:25:06,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:25:06,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:06,784 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 11:25:06,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:25:06,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 17 [2020-12-22 11:25:06,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105379157] [2020-12-22 11:25:06,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-22 11:25:06,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:06,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-22 11:25:06,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2020-12-22 11:25:06,786 INFO L87 Difference]: Start difference. First operand 2085 states and 7975 transitions. Second operand 19 states. [2020-12-22 11:25:09,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:09,947 INFO L93 Difference]: Finished difference Result 8405 states and 25315 transitions. [2020-12-22 11:25:09,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-12-22 11:25:09,947 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 21 [2020-12-22 11:25:09,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:09,966 INFO L225 Difference]: With dead ends: 8405 [2020-12-22 11:25:09,967 INFO L226 Difference]: Without dead ends: 8391 [2020-12-22 11:25:09,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1898 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1228, Invalid=4624, Unknown=0, NotChecked=0, Total=5852 [2020-12-22 11:25:10,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8391 states. [2020-12-22 11:25:10,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8391 to 2024. [2020-12-22 11:25:10,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2024 states. [2020-12-22 11:25:10,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 7766 transitions. [2020-12-22 11:25:10,098 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 7766 transitions. Word has length 21 [2020-12-22 11:25:10,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:10,098 INFO L481 AbstractCegarLoop]: Abstraction has 2024 states and 7766 transitions. [2020-12-22 11:25:10,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-22 11:25:10,098 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 7766 transitions. [2020-12-22 11:25:10,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:25:10,101 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:10,101 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:10,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-12-22 11:25:10,317 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:25:10,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:10,318 INFO L82 PathProgramCache]: Analyzing trace with hash 2115879735, now seen corresponding path program 4 times [2020-12-22 11:25:10,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:10,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574468539] [2020-12-22 11:25:10,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:10,428 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:10,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574468539] [2020-12-22 11:25:10,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306064086] [2020-12-22 11:25:10,428 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:10,530 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-22 11:25:10,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:25:10,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-22 11:25:10,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:10,762 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:10,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:25:10,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-12-22 11:25:10,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109625131] [2020-12-22 11:25:10,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-22 11:25:10,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:10,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-22 11:25:10,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2020-12-22 11:25:10,764 INFO L87 Difference]: Start difference. First operand 2024 states and 7766 transitions. Second operand 24 states. [2020-12-22 11:25:13,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:13,683 INFO L93 Difference]: Finished difference Result 8053 states and 24027 transitions. [2020-12-22 11:25:13,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-12-22 11:25:13,686 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 21 [2020-12-22 11:25:13,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:13,705 INFO L225 Difference]: With dead ends: 8053 [2020-12-22 11:25:13,705 INFO L226 Difference]: Without dead ends: 8038 [2020-12-22 11:25:13,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2815 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1543, Invalid=6467, Unknown=0, NotChecked=0, Total=8010 [2020-12-22 11:25:13,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8038 states. [2020-12-22 11:25:13,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8038 to 1986. [2020-12-22 11:25:13,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1986 states. [2020-12-22 11:25:13,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 7603 transitions. [2020-12-22 11:25:13,834 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 7603 transitions. Word has length 21 [2020-12-22 11:25:13,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:13,835 INFO L481 AbstractCegarLoop]: Abstraction has 1986 states and 7603 transitions. [2020-12-22 11:25:13,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-22 11:25:13,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 7603 transitions. [2020-12-22 11:25:13,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:25:13,842 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:13,843 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:14,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-12-22 11:25:14,056 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:25:14,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:14,057 INFO L82 PathProgramCache]: Analyzing trace with hash -290678062, now seen corresponding path program 1 times [2020-12-22 11:25:14,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:14,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861076688] [2020-12-22 11:25:14,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:14,146 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:25:14,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861076688] [2020-12-22 11:25:14,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481888248] [2020-12-22 11:25:14,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:14,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:25:14,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:25:14,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:25:14,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-22 11:25:14,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244859906] [2020-12-22 11:25:14,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:25:14,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:14,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:25:14,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:25:14,316 INFO L87 Difference]: Start difference. First operand 1986 states and 7603 transitions. Second operand 5 states. [2020-12-22 11:25:14,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:14,422 INFO L93 Difference]: Finished difference Result 3026 states and 10876 transitions. [2020-12-22 11:25:14,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:25:14,423 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-12-22 11:25:14,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:14,432 INFO L225 Difference]: With dead ends: 3026 [2020-12-22 11:25:14,432 INFO L226 Difference]: Without dead ends: 3010 [2020-12-22 11:25:14,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-12-22 11:25:14,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2020-12-22 11:25:14,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 2193. [2020-12-22 11:25:14,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2193 states. [2020-12-22 11:25:14,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 8246 transitions. [2020-12-22 11:25:14,502 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 8246 transitions. Word has length 21 [2020-12-22 11:25:14,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:14,502 INFO L481 AbstractCegarLoop]: Abstraction has 2193 states and 8246 transitions. [2020-12-22 11:25:14,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:25:14,503 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 8246 transitions. [2020-12-22 11:25:14,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:25:14,504 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:14,504 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:14,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-12-22 11:25:14,718 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:25:14,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:14,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1035436105, now seen corresponding path program 5 times [2020-12-22 11:25:14,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:14,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300736824] [2020-12-22 11:25:14,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:14,837 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:14,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300736824] [2020-12-22 11:25:14,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965635671] [2020-12-22 11:25:14,838 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:14,941 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2020-12-22 11:25:14,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:25:14,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-22 11:25:14,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:15,155 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:15,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:25:15,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-12-22 11:25:15,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868451189] [2020-12-22 11:25:15,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-22 11:25:15,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:15,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-22 11:25:15,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2020-12-22 11:25:15,157 INFO L87 Difference]: Start difference. First operand 2193 states and 8246 transitions. Second operand 24 states. [2020-12-22 11:25:16,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:16,965 INFO L93 Difference]: Finished difference Result 6968 states and 21312 transitions. [2020-12-22 11:25:16,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-12-22 11:25:16,965 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 21 [2020-12-22 11:25:16,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:16,977 INFO L225 Difference]: With dead ends: 6968 [2020-12-22 11:25:16,977 INFO L226 Difference]: Without dead ends: 6957 [2020-12-22 11:25:16,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1080 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=770, Invalid=2890, Unknown=0, NotChecked=0, Total=3660 [2020-12-22 11:25:17,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6957 states. [2020-12-22 11:25:17,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6957 to 2106. [2020-12-22 11:25:17,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2106 states. [2020-12-22 11:25:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2106 states to 2106 states and 7912 transitions. [2020-12-22 11:25:17,067 INFO L78 Accepts]: Start accepts. Automaton has 2106 states and 7912 transitions. Word has length 21 [2020-12-22 11:25:17,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:17,067 INFO L481 AbstractCegarLoop]: Abstraction has 2106 states and 7912 transitions. [2020-12-22 11:25:17,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-22 11:25:17,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2106 states and 7912 transitions. [2020-12-22 11:25:17,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:25:17,069 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:17,069 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:17,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:17,285 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:25:17,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:17,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1029067465, now seen corresponding path program 6 times [2020-12-22 11:25:17,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:17,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797633482] [2020-12-22 11:25:17,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:17,400 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:17,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797633482] [2020-12-22 11:25:17,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834539770] [2020-12-22 11:25:17,400 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:17,522 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2020-12-22 11:25:17,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:25:17,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:25:17,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:17,697 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:25:17,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:25:17,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 18 [2020-12-22 11:25:17,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319362108] [2020-12-22 11:25:17,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:25:17,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:17,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:25:17,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2020-12-22 11:25:17,699 INFO L87 Difference]: Start difference. First operand 2106 states and 7912 transitions. Second operand 9 states. [2020-12-22 11:25:18,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:18,563 INFO L93 Difference]: Finished difference Result 6024 states and 18815 transitions. [2020-12-22 11:25:18,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:25:18,563 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-22 11:25:18,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:18,574 INFO L225 Difference]: With dead ends: 6024 [2020-12-22 11:25:18,574 INFO L226 Difference]: Without dead ends: 6009 [2020-12-22 11:25:18,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=398, Invalid=1408, Unknown=0, NotChecked=0, Total=1806 [2020-12-22 11:25:18,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6009 states. [2020-12-22 11:25:18,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6009 to 1975. [2020-12-22 11:25:18,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2020-12-22 11:25:18,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 7465 transitions. [2020-12-22 11:25:18,643 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 7465 transitions. Word has length 21 [2020-12-22 11:25:18,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:18,643 INFO L481 AbstractCegarLoop]: Abstraction has 1975 states and 7465 transitions. [2020-12-22 11:25:18,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:25:18,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 7465 transitions. [2020-12-22 11:25:18,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 11:25:18,645 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:18,645 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:18,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2020-12-22 11:25:18,853 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:25:18,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:18,853 INFO L82 PathProgramCache]: Analyzing trace with hash -425444958, now seen corresponding path program 1 times [2020-12-22 11:25:18,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:18,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672289961] [2020-12-22 11:25:18,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:25:18,867 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:25:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:25:18,880 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:25:18,888 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 11:25:18,888 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 11:25:18,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-22 11:25:18,889 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-12-22 11:25:18,889 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-12-22 11:25:18,909 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,909 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,910 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,910 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,910 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,910 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,910 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,910 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,910 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,911 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,911 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,911 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,911 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,911 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,912 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,912 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,912 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,912 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,912 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,912 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,912 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,912 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,912 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,912 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,913 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,913 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,913 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,913 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,913 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,913 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,913 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,913 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,914 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,914 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,914 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,914 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,914 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,914 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,914 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,914 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,914 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,915 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,915 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,915 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,915 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,915 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,915 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,915 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,915 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,915 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,916 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,916 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,916 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,916 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,916 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,916 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,916 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,916 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,916 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,917 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,917 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,917 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,917 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,917 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,917 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,917 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,917 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,917 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,917 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,917 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,920 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,920 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,920 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,920 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,920 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,920 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,923 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,923 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,923 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,923 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,923 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,927 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,927 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,927 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,927 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,927 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,928 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,928 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,928 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,928 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,928 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,928 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,928 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,929 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,929 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,929 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,930 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,930 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,931 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,931 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,931 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,932 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,932 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,932 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,932 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,932 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,933 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,933 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,934 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,934 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,934 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,935 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,935 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,935 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,935 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,935 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,936 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,936 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,937 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,937 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,937 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,937 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,938 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,938 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,938 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,938 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,938 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,939 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,940 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,940 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,940 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,940 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,940 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,940 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,941 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,942 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,942 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,942 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,942 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,942 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,943 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,943 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,943 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,943 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,944 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,944 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:25:18,945 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:25:18,945 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-12-22 11:25:18,946 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:25:18,946 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:25:18,946 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:25:18,946 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:25:18,946 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:25:18,946 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:25:18,946 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:25:18,946 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:25:18,948 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:25:18,948 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 131 transitions, 352 flow [2020-12-22 11:25:18,948 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 131 transitions, 352 flow [2020-12-22 11:25:18,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 146 places, 131 transitions, 352 flow [2020-12-22 11:25:18,971 INFO L129 PetriNetUnfolder]: 8/157 cut-off events. [2020-12-22 11:25:18,971 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-12-22 11:25:18,973 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 157 events. 8/157 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 184. Up to 12 conditions per place. [2020-12-22 11:25:18,982 INFO L116 LiptonReduction]: Number of co-enabled transitions 2360 [2020-12-22 11:25:21,881 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-22 11:25:22,707 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2020-12-22 11:25:22,839 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-22 11:25:23,123 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2020-12-22 11:25:23,251 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-22 11:25:23,419 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-22 11:25:23,579 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-22 11:25:23,771 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-12-22 11:25:23,950 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-22 11:25:23,959 INFO L131 LiptonReduction]: Checked pairs total: 3863 [2020-12-22 11:25:23,959 INFO L133 LiptonReduction]: Total number of compositions: 121 [2020-12-22 11:25:23,960 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 39 transitions, 168 flow [2020-12-22 11:25:24,530 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6191 states. [2020-12-22 11:25:24,531 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states. [2020-12-22 11:25:24,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 11:25:24,531 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:24,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 11:25:24,531 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:24,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:24,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1111243, now seen corresponding path program 1 times [2020-12-22 11:25:24,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:24,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582237673] [2020-12-22 11:25:24,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:24,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:24,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582237673] [2020-12-22 11:25:24,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:25:24,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:25:24,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274675220] [2020-12-22 11:25:24,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:25:24,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:24,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:25:24,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:25:24,555 INFO L87 Difference]: Start difference. First operand 6191 states. Second operand 3 states. [2020-12-22 11:25:24,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:24,625 INFO L93 Difference]: Finished difference Result 5844 states and 26316 transitions. [2020-12-22 11:25:24,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:25:24,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 11:25:24,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:24,648 INFO L225 Difference]: With dead ends: 5844 [2020-12-22 11:25:24,648 INFO L226 Difference]: Without dead ends: 5479 [2020-12-22 11:25:24,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:25:24,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2020-12-22 11:25:24,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2020-12-22 11:25:24,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-12-22 11:25:24,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 24493 transitions. [2020-12-22 11:25:24,834 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 24493 transitions. Word has length 3 [2020-12-22 11:25:24,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:24,834 INFO L481 AbstractCegarLoop]: Abstraction has 5479 states and 24493 transitions. [2020-12-22 11:25:24,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:25:24,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 24493 transitions. [2020-12-22 11:25:24,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:25:24,835 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:24,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:24,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-22 11:25:24,835 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:24,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:24,835 INFO L82 PathProgramCache]: Analyzing trace with hash -745341310, now seen corresponding path program 1 times [2020-12-22 11:25:24,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:24,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231220697] [2020-12-22 11:25:24,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:24,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:24,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231220697] [2020-12-22 11:25:24,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:25:24,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:25:24,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073185074] [2020-12-22 11:25:24,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:25:24,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:24,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:25:24,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:25:24,880 INFO L87 Difference]: Start difference. First operand 5479 states and 24493 transitions. Second operand 7 states. [2020-12-22 11:25:25,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:25,113 INFO L93 Difference]: Finished difference Result 11373 states and 46632 transitions. [2020-12-22 11:25:25,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 11:25:25,113 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2020-12-22 11:25:25,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:25,142 INFO L225 Difference]: With dead ends: 11373 [2020-12-22 11:25:25,142 INFO L226 Difference]: Without dead ends: 11366 [2020-12-22 11:25:25,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-12-22 11:25:25,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11366 states. [2020-12-22 11:25:25,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11366 to 6331. [2020-12-22 11:25:25,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6331 states. [2020-12-22 11:25:25,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 28544 transitions. [2020-12-22 11:25:25,517 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 28544 transitions. Word has length 9 [2020-12-22 11:25:25,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:25,518 INFO L481 AbstractCegarLoop]: Abstraction has 6331 states and 28544 transitions. [2020-12-22 11:25:25,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:25:25,518 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 28544 transitions. [2020-12-22 11:25:25,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:25:25,518 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:25,518 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:25,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-22 11:25:25,518 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:25,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:25,519 INFO L82 PathProgramCache]: Analyzing trace with hash 901725382, now seen corresponding path program 1 times [2020-12-22 11:25:25,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:25,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155869151] [2020-12-22 11:25:25,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:25,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:25,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155869151] [2020-12-22 11:25:25,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735318825] [2020-12-22 11:25:25,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:25,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:25:25,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:25,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 11:25:25,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:25:25,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-22 11:25:25,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754311155] [2020-12-22 11:25:25,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:25:25,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:25,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:25:25,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:25:25,879 INFO L87 Difference]: Start difference. First operand 6331 states and 28544 transitions. Second operand 5 states. [2020-12-22 11:25:26,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:26,148 INFO L93 Difference]: Finished difference Result 11081 states and 46826 transitions. [2020-12-22 11:25:26,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:25:26,149 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-22 11:25:26,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:26,193 INFO L225 Difference]: With dead ends: 11081 [2020-12-22 11:25:26,193 INFO L226 Difference]: Without dead ends: 11068 [2020-12-22 11:25:26,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-12-22 11:25:26,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2020-12-22 11:25:26,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 7391. [2020-12-22 11:25:26,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7391 states. [2020-12-22 11:25:26,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 33694 transitions. [2020-12-22 11:25:26,604 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 33694 transitions. Word has length 13 [2020-12-22 11:25:26,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:26,605 INFO L481 AbstractCegarLoop]: Abstraction has 7391 states and 33694 transitions. [2020-12-22 11:25:26,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:25:26,605 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 33694 transitions. [2020-12-22 11:25:26,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:25:26,605 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:26,605 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:26,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2020-12-22 11:25:26,807 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:26,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:26,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1025299782, now seen corresponding path program 1 times [2020-12-22 11:25:26,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:26,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614890458] [2020-12-22 11:25:26,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:26,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:26,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614890458] [2020-12-22 11:25:26,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139560353] [2020-12-22 11:25:26,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:27,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-22 11:25:27,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:27,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:27,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:25:27,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2020-12-22 11:25:27,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375657062] [2020-12-22 11:25:27,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-22 11:25:27,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:27,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-22 11:25:27,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2020-12-22 11:25:27,231 INFO L87 Difference]: Start difference. First operand 7391 states and 33694 transitions. Second operand 17 states. [2020-12-22 11:25:28,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:28,127 INFO L93 Difference]: Finished difference Result 20116 states and 77176 transitions. [2020-12-22 11:25:28,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-22 11:25:28,127 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 15 [2020-12-22 11:25:28,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:28,179 INFO L225 Difference]: With dead ends: 20116 [2020-12-22 11:25:28,179 INFO L226 Difference]: Without dead ends: 20095 [2020-12-22 11:25:28,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=258, Invalid=798, Unknown=0, NotChecked=0, Total=1056 [2020-12-22 11:25:28,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20095 states. [2020-12-22 11:25:28,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20095 to 7303. [2020-12-22 11:25:28,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7303 states. [2020-12-22 11:25:28,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7303 states to 7303 states and 33260 transitions. [2020-12-22 11:25:28,661 INFO L78 Accepts]: Start accepts. Automaton has 7303 states and 33260 transitions. Word has length 15 [2020-12-22 11:25:28,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:28,661 INFO L481 AbstractCegarLoop]: Abstraction has 7303 states and 33260 transitions. [2020-12-22 11:25:28,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-22 11:25:28,661 INFO L276 IsEmpty]: Start isEmpty. Operand 7303 states and 33260 transitions. [2020-12-22 11:25:28,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:25:28,661 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:28,661 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:28,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:28,863 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:28,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:28,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1022204742, now seen corresponding path program 2 times [2020-12-22 11:25:28,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:28,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238361739] [2020-12-22 11:25:28,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:28,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:28,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238361739] [2020-12-22 11:25:28,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900773557] [2020-12-22 11:25:28,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:29,046 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:25:29,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:25:29,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-22 11:25:29,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:29,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 11:25:29,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:25:29,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 13 [2020-12-22 11:25:29,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522411262] [2020-12-22 11:25:29,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:25:29,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:29,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:25:29,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-12-22 11:25:29,161 INFO L87 Difference]: Start difference. First operand 7303 states and 33260 transitions. Second operand 7 states. [2020-12-22 11:25:29,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:29,714 INFO L93 Difference]: Finished difference Result 17085 states and 67393 transitions. [2020-12-22 11:25:29,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:25:29,715 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-12-22 11:25:29,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:29,764 INFO L225 Difference]: With dead ends: 17085 [2020-12-22 11:25:29,764 INFO L226 Difference]: Without dead ends: 17071 [2020-12-22 11:25:29,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2020-12-22 11:25:29,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17071 states. [2020-12-22 11:25:30,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17071 to 7048. [2020-12-22 11:25:30,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7048 states. [2020-12-22 11:25:30,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7048 states to 7048 states and 32136 transitions. [2020-12-22 11:25:30,279 INFO L78 Accepts]: Start accepts. Automaton has 7048 states and 32136 transitions. Word has length 15 [2020-12-22 11:25:30,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:30,292 INFO L481 AbstractCegarLoop]: Abstraction has 7048 states and 32136 transitions. [2020-12-22 11:25:30,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:25:30,292 INFO L276 IsEmpty]: Start isEmpty. Operand 7048 states and 32136 transitions. [2020-12-22 11:25:30,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:25:30,293 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:30,293 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:30,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2020-12-22 11:25:30,494 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:30,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:30,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1059883444, now seen corresponding path program 1 times [2020-12-22 11:25:30,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:30,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976377172] [2020-12-22 11:25:30,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:30,560 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 11:25:30,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976377172] [2020-12-22 11:25:30,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637844094] [2020-12-22 11:25:30,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:30,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:25:30,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:25:30,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:25:30,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-22 11:25:30,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092620169] [2020-12-22 11:25:30,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:25:30,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:30,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:25:30,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:25:30,746 INFO L87 Difference]: Start difference. First operand 7048 states and 32136 transitions. Second operand 5 states. [2020-12-22 11:25:30,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:30,940 INFO L93 Difference]: Finished difference Result 12234 states and 52488 transitions. [2020-12-22 11:25:30,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:25:30,941 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-22 11:25:30,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:30,989 INFO L225 Difference]: With dead ends: 12234 [2020-12-22 11:25:30,989 INFO L226 Difference]: Without dead ends: 12212 [2020-12-22 11:25:30,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-12-22 11:25:31,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12212 states. [2020-12-22 11:25:31,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12212 to 8342. [2020-12-22 11:25:31,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8342 states. [2020-12-22 11:25:31,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 38278 transitions. [2020-12-22 11:25:31,402 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 38278 transitions. Word has length 17 [2020-12-22 11:25:31,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:31,403 INFO L481 AbstractCegarLoop]: Abstraction has 8342 states and 38278 transitions. [2020-12-22 11:25:31,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:25:31,403 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 38278 transitions. [2020-12-22 11:25:31,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 11:25:31,405 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:31,405 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:31,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:31,606 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:31,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:31,607 INFO L82 PathProgramCache]: Analyzing trace with hash -658508568, now seen corresponding path program 1 times [2020-12-22 11:25:31,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:31,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614930050] [2020-12-22 11:25:31,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:31,695 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:31,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614930050] [2020-12-22 11:25:31,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663462088] [2020-12-22 11:25:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:31,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 11:25:31,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:31,986 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-22 11:25:32,063 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:25:32,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:25:32,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2020-12-22 11:25:32,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417185919] [2020-12-22 11:25:32,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:25:32,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:32,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:25:32,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-12-22 11:25:32,066 INFO L87 Difference]: Start difference. First operand 8342 states and 38278 transitions. Second operand 7 states. [2020-12-22 11:25:32,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:32,467 INFO L93 Difference]: Finished difference Result 19016 states and 76191 transitions. [2020-12-22 11:25:32,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:25:32,467 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-22 11:25:32,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:32,519 INFO L225 Difference]: With dead ends: 19016 [2020-12-22 11:25:32,519 INFO L226 Difference]: Without dead ends: 18998 [2020-12-22 11:25:32,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2020-12-22 11:25:32,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18998 states. [2020-12-22 11:25:33,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18998 to 8452. [2020-12-22 11:25:33,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8452 states. [2020-12-22 11:25:33,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8452 states to 8452 states and 38704 transitions. [2020-12-22 11:25:33,048 INFO L78 Accepts]: Start accepts. Automaton has 8452 states and 38704 transitions. Word has length 19 [2020-12-22 11:25:33,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:33,049 INFO L481 AbstractCegarLoop]: Abstraction has 8452 states and 38704 transitions. [2020-12-22 11:25:33,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:25:33,049 INFO L276 IsEmpty]: Start isEmpty. Operand 8452 states and 38704 transitions. [2020-12-22 11:25:33,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 11:25:33,050 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:33,050 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:33,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-12-22 11:25:33,251 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:33,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:33,252 INFO L82 PathProgramCache]: Analyzing trace with hash -655410304, now seen corresponding path program 1 times [2020-12-22 11:25:33,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:33,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918973437] [2020-12-22 11:25:33,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:33,347 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:33,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918973437] [2020-12-22 11:25:33,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598333018] [2020-12-22 11:25:33,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:33,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-22 11:25:33,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:33,667 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:33,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:25:33,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2020-12-22 11:25:33,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395106524] [2020-12-22 11:25:33,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-22 11:25:33,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:33,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-22 11:25:33,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2020-12-22 11:25:33,669 INFO L87 Difference]: Start difference. First operand 8452 states and 38704 transitions. Second operand 19 states. [2020-12-22 11:25:33,839 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-22 11:25:35,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:35,028 INFO L93 Difference]: Finished difference Result 21120 states and 84426 transitions. [2020-12-22 11:25:35,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-12-22 11:25:35,029 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 19 [2020-12-22 11:25:35,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:35,211 INFO L225 Difference]: With dead ends: 21120 [2020-12-22 11:25:35,212 INFO L226 Difference]: Without dead ends: 21077 [2020-12-22 11:25:35,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=378, Invalid=1182, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 11:25:35,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21077 states. [2020-12-22 11:25:35,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21077 to 8480. [2020-12-22 11:25:35,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8480 states. [2020-12-22 11:25:35,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8480 states to 8480 states and 38825 transitions. [2020-12-22 11:25:35,582 INFO L78 Accepts]: Start accepts. Automaton has 8480 states and 38825 transitions. Word has length 19 [2020-12-22 11:25:35,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:35,582 INFO L481 AbstractCegarLoop]: Abstraction has 8480 states and 38825 transitions. [2020-12-22 11:25:35,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-22 11:25:35,582 INFO L276 IsEmpty]: Start isEmpty. Operand 8480 states and 38825 transitions. [2020-12-22 11:25:35,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 11:25:35,583 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:35,583 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:35,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-12-22 11:25:35,799 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:35,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:35,800 INFO L82 PathProgramCache]: Analyzing trace with hash -640741848, now seen corresponding path program 2 times [2020-12-22 11:25:35,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:35,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112775542] [2020-12-22 11:25:35,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:36,034 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:36,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112775542] [2020-12-22 11:25:36,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6717876] [2020-12-22 11:25:36,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:36,149 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:25:36,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:25:36,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-22 11:25:36,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:36,274 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:25:36,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:25:36,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2020-12-22 11:25:36,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576060586] [2020-12-22 11:25:36,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:25:36,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:36,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:25:36,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-12-22 11:25:36,276 INFO L87 Difference]: Start difference. First operand 8480 states and 38825 transitions. Second operand 7 states. [2020-12-22 11:25:36,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:36,737 INFO L93 Difference]: Finished difference Result 19852 states and 79846 transitions. [2020-12-22 11:25:36,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:25:36,737 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-22 11:25:36,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:36,789 INFO L225 Difference]: With dead ends: 19852 [2020-12-22 11:25:36,789 INFO L226 Difference]: Without dead ends: 19827 [2020-12-22 11:25:36,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2020-12-22 11:25:37,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19827 states. [2020-12-22 11:25:37,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19827 to 8379. [2020-12-22 11:25:37,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8379 states. [2020-12-22 11:25:37,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8379 states to 8379 states and 38406 transitions. [2020-12-22 11:25:37,367 INFO L78 Accepts]: Start accepts. Automaton has 8379 states and 38406 transitions. Word has length 19 [2020-12-22 11:25:37,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:37,368 INFO L481 AbstractCegarLoop]: Abstraction has 8379 states and 38406 transitions. [2020-12-22 11:25:37,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:25:37,368 INFO L276 IsEmpty]: Start isEmpty. Operand 8379 states and 38406 transitions. [2020-12-22 11:25:37,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 11:25:37,369 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:37,369 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:37,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2020-12-22 11:25:37,570 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:37,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:37,571 INFO L82 PathProgramCache]: Analyzing trace with hash -640738624, now seen corresponding path program 2 times [2020-12-22 11:25:37,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:37,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216335408] [2020-12-22 11:25:37,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:37,664 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:37,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216335408] [2020-12-22 11:25:37,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866327156] [2020-12-22 11:25:37,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:37,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:25:37,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:25:37,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 11:25:37,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:38,014 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:25:38,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:25:38,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2020-12-22 11:25:38,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506915178] [2020-12-22 11:25:38,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:25:38,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:38,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:25:38,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-12-22 11:25:38,016 INFO L87 Difference]: Start difference. First operand 8379 states and 38406 transitions. Second operand 7 states. [2020-12-22 11:25:38,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:38,442 INFO L93 Difference]: Finished difference Result 19555 states and 78564 transitions. [2020-12-22 11:25:38,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:25:38,443 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-22 11:25:38,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:38,492 INFO L225 Difference]: With dead ends: 19555 [2020-12-22 11:25:38,493 INFO L226 Difference]: Without dead ends: 19530 [2020-12-22 11:25:38,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2020-12-22 11:25:38,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19530 states. [2020-12-22 11:25:38,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19530 to 8317. [2020-12-22 11:25:38,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8317 states. [2020-12-22 11:25:38,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8317 states to 8317 states and 38184 transitions. [2020-12-22 11:25:38,963 INFO L78 Accepts]: Start accepts. Automaton has 8317 states and 38184 transitions. Word has length 19 [2020-12-22 11:25:38,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:38,964 INFO L481 AbstractCegarLoop]: Abstraction has 8317 states and 38184 transitions. [2020-12-22 11:25:38,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:25:38,964 INFO L276 IsEmpty]: Start isEmpty. Operand 8317 states and 38184 transitions. [2020-12-22 11:25:38,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:25:38,966 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:38,966 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:39,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:39,179 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:39,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:39,180 INFO L82 PathProgramCache]: Analyzing trace with hash -775503288, now seen corresponding path program 1 times [2020-12-22 11:25:39,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:39,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068577728] [2020-12-22 11:25:39,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:39,244 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:25:39,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068577728] [2020-12-22 11:25:39,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087270262] [2020-12-22 11:25:39,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:39,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:25:39,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:39,433 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:25:39,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:25:39,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-22 11:25:39,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140211338] [2020-12-22 11:25:39,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:25:39,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:39,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:25:39,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:25:39,435 INFO L87 Difference]: Start difference. First operand 8317 states and 38184 transitions. Second operand 5 states. [2020-12-22 11:25:39,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:39,650 INFO L93 Difference]: Finished difference Result 14141 states and 61627 transitions. [2020-12-22 11:25:39,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:25:39,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-12-22 11:25:39,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:39,707 INFO L225 Difference]: With dead ends: 14141 [2020-12-22 11:25:39,707 INFO L226 Difference]: Without dead ends: 14110 [2020-12-22 11:25:39,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-12-22 11:25:40,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14110 states. [2020-12-22 11:25:40,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14110 to 10049. [2020-12-22 11:25:40,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10049 states. [2020-12-22 11:25:40,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10049 states to 10049 states and 46134 transitions. [2020-12-22 11:25:40,402 INFO L78 Accepts]: Start accepts. Automaton has 10049 states and 46134 transitions. Word has length 21 [2020-12-22 11:25:40,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:40,402 INFO L481 AbstractCegarLoop]: Abstraction has 10049 states and 46134 transitions. [2020-12-22 11:25:40,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:25:40,402 INFO L276 IsEmpty]: Start isEmpty. Operand 10049 states and 46134 transitions. [2020-12-22 11:25:40,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:25:40,412 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:40,412 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:40,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2020-12-22 11:25:40,628 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:40,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:40,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1481211108, now seen corresponding path program 1 times [2020-12-22 11:25:40,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:40,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458104192] [2020-12-22 11:25:40,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:40,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458104192] [2020-12-22 11:25:40,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741923508] [2020-12-22 11:25:40,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:40,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:25:40,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:41,148 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:25:41,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:25:41,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 18 [2020-12-22 11:25:41,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237902515] [2020-12-22 11:25:41,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:25:41,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:41,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:25:41,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-12-22 11:25:41,151 INFO L87 Difference]: Start difference. First operand 10049 states and 46134 transitions. Second operand 9 states. [2020-12-22 11:25:42,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:42,348 INFO L93 Difference]: Finished difference Result 30333 states and 116117 transitions. [2020-12-22 11:25:42,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:25:42,348 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-22 11:25:42,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:42,422 INFO L225 Difference]: With dead ends: 30333 [2020-12-22 11:25:42,422 INFO L226 Difference]: Without dead ends: 30315 [2020-12-22 11:25:42,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=442, Invalid=1364, Unknown=0, NotChecked=0, Total=1806 [2020-12-22 11:25:42,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30315 states. [2020-12-22 11:25:43,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30315 to 9884. [2020-12-22 11:25:43,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9884 states. [2020-12-22 11:25:43,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9884 states to 9884 states and 45329 transitions. [2020-12-22 11:25:43,209 INFO L78 Accepts]: Start accepts. Automaton has 9884 states and 45329 transitions. Word has length 21 [2020-12-22 11:25:43,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:43,209 INFO L481 AbstractCegarLoop]: Abstraction has 9884 states and 45329 transitions. [2020-12-22 11:25:43,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:25:43,209 INFO L276 IsEmpty]: Start isEmpty. Operand 9884 states and 45329 transitions. [2020-12-22 11:25:43,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:25:43,211 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:43,211 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:43,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:43,412 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:43,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:43,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1466539428, now seen corresponding path program 2 times [2020-12-22 11:25:43,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:43,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423080364] [2020-12-22 11:25:43,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:43,521 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:43,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423080364] [2020-12-22 11:25:43,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387675067] [2020-12-22 11:25:43,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:43,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:25:43,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:25:43,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:25:43,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:43,803 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:25:43,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:25:43,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 18 [2020-12-22 11:25:43,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845165893] [2020-12-22 11:25:43,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:25:43,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:43,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:25:43,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-12-22 11:25:43,806 INFO L87 Difference]: Start difference. First operand 9884 states and 45329 transitions. Second operand 9 states. [2020-12-22 11:25:44,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:44,942 INFO L93 Difference]: Finished difference Result 29916 states and 114355 transitions. [2020-12-22 11:25:44,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:25:44,943 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-22 11:25:44,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:45,034 INFO L225 Difference]: With dead ends: 29916 [2020-12-22 11:25:45,034 INFO L226 Difference]: Without dead ends: 29894 [2020-12-22 11:25:45,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=442, Invalid=1364, Unknown=0, NotChecked=0, Total=1806 [2020-12-22 11:25:45,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29894 states. [2020-12-22 11:25:45,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29894 to 9719. [2020-12-22 11:25:45,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9719 states. [2020-12-22 11:25:45,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9719 states to 9719 states and 44527 transitions. [2020-12-22 11:25:45,689 INFO L78 Accepts]: Start accepts. Automaton has 9719 states and 44527 transitions. Word has length 21 [2020-12-22 11:25:45,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:45,689 INFO L481 AbstractCegarLoop]: Abstraction has 9719 states and 44527 transitions. [2020-12-22 11:25:45,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:25:45,689 INFO L276 IsEmpty]: Start isEmpty. Operand 9719 states and 44527 transitions. [2020-12-22 11:25:45,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:25:45,690 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:45,691 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:45,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2020-12-22 11:25:45,899 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:45,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:45,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1493122332, now seen corresponding path program 3 times [2020-12-22 11:25:45,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:45,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033394316] [2020-12-22 11:25:45,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:46,017 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:46,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033394316] [2020-12-22 11:25:46,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34245966] [2020-12-22 11:25:46,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:46,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2020-12-22 11:25:46,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:25:46,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 11:25:46,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:25:46,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:25:46,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 18 [2020-12-22 11:25:46,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695372433] [2020-12-22 11:25:46,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:25:46,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:46,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:25:46,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-12-22 11:25:46,324 INFO L87 Difference]: Start difference. First operand 9719 states and 44527 transitions. Second operand 9 states. [2020-12-22 11:25:47,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:47,468 INFO L93 Difference]: Finished difference Result 29973 states and 114573 transitions. [2020-12-22 11:25:47,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:25:47,469 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-22 11:25:47,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:47,706 INFO L225 Difference]: With dead ends: 29973 [2020-12-22 11:25:47,706 INFO L226 Difference]: Without dead ends: 29955 [2020-12-22 11:25:47,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=442, Invalid=1364, Unknown=0, NotChecked=0, Total=1806 [2020-12-22 11:25:47,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29955 states. [2020-12-22 11:25:48,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29955 to 9420. [2020-12-22 11:25:48,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9420 states. [2020-12-22 11:25:48,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9420 states to 9420 states and 43170 transitions. [2020-12-22 11:25:48,304 INFO L78 Accepts]: Start accepts. Automaton has 9420 states and 43170 transitions. Word has length 21 [2020-12-22 11:25:48,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:48,304 INFO L481 AbstractCegarLoop]: Abstraction has 9420 states and 43170 transitions. [2020-12-22 11:25:48,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:25:48,304 INFO L276 IsEmpty]: Start isEmpty. Operand 9420 states and 43170 transitions. [2020-12-22 11:25:48,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:25:48,306 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:48,306 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:48,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2020-12-22 11:25:48,521 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:48,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:48,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1510889052, now seen corresponding path program 4 times [2020-12-22 11:25:48,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:48,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077924234] [2020-12-22 11:25:48,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:48,645 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:48,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077924234] [2020-12-22 11:25:48,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109277566] [2020-12-22 11:25:48,646 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:48,776 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-22 11:25:48,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:25:48,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:25:48,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:49,053 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:49,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:25:49,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2020-12-22 11:25:49,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057776285] [2020-12-22 11:25:49,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-12-22 11:25:49,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:49,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-12-22 11:25:49,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2020-12-22 11:25:49,055 INFO L87 Difference]: Start difference. First operand 9420 states and 43170 transitions. Second operand 23 states. [2020-12-22 11:25:50,125 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-22 11:25:51,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:51,809 INFO L93 Difference]: Finished difference Result 35304 states and 132345 transitions. [2020-12-22 11:25:51,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-12-22 11:25:51,809 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 21 [2020-12-22 11:25:51,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:51,894 INFO L225 Difference]: With dead ends: 35304 [2020-12-22 11:25:51,894 INFO L226 Difference]: Without dead ends: 35268 [2020-12-22 11:25:51,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1770 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1215, Invalid=4485, Unknown=0, NotChecked=0, Total=5700 [2020-12-22 11:25:52,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35268 states. [2020-12-22 11:25:52,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35268 to 9255. [2020-12-22 11:25:52,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9255 states. [2020-12-22 11:25:52,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9255 states to 9255 states and 42368 transitions. [2020-12-22 11:25:52,571 INFO L78 Accepts]: Start accepts. Automaton has 9255 states and 42368 transitions. Word has length 21 [2020-12-22 11:25:52,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:52,572 INFO L481 AbstractCegarLoop]: Abstraction has 9255 states and 42368 transitions. [2020-12-22 11:25:52,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-12-22 11:25:52,572 INFO L276 IsEmpty]: Start isEmpty. Operand 9255 states and 42368 transitions. [2020-12-22 11:25:52,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:25:52,573 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:52,573 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:52,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2020-12-22 11:25:52,775 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:52,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:52,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1572590692, now seen corresponding path program 5 times [2020-12-22 11:25:52,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:52,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804313470] [2020-12-22 11:25:52,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:52,898 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:52,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804313470] [2020-12-22 11:25:52,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559533644] [2020-12-22 11:25:52,899 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:53,019 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2020-12-22 11:25:53,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:25:53,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:25:53,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:53,208 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:25:53,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:25:53,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 18 [2020-12-22 11:25:53,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40645995] [2020-12-22 11:25:53,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:25:53,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:53,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:25:53,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-12-22 11:25:53,210 INFO L87 Difference]: Start difference. First operand 9255 states and 42368 transitions. Second operand 9 states. [2020-12-22 11:25:54,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:54,435 INFO L93 Difference]: Finished difference Result 29788 states and 113841 transitions. [2020-12-22 11:25:54,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:25:54,436 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-22 11:25:54,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:54,520 INFO L225 Difference]: With dead ends: 29788 [2020-12-22 11:25:54,520 INFO L226 Difference]: Without dead ends: 29770 [2020-12-22 11:25:54,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=442, Invalid=1364, Unknown=0, NotChecked=0, Total=1806 [2020-12-22 11:25:54,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29770 states. [2020-12-22 11:25:55,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29770 to 8964. [2020-12-22 11:25:55,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8964 states. [2020-12-22 11:25:55,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8964 states to 8964 states and 41031 transitions. [2020-12-22 11:25:55,158 INFO L78 Accepts]: Start accepts. Automaton has 8964 states and 41031 transitions. Word has length 21 [2020-12-22 11:25:55,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:55,158 INFO L481 AbstractCegarLoop]: Abstraction has 8964 states and 41031 transitions. [2020-12-22 11:25:55,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:25:55,158 INFO L276 IsEmpty]: Start isEmpty. Operand 8964 states and 41031 transitions. [2020-12-22 11:25:55,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 11:25:55,161 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:55,161 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:55,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2020-12-22 11:25:55,375 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:55,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:55,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1569495652, now seen corresponding path program 6 times [2020-12-22 11:25:55,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:55,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809522579] [2020-12-22 11:25:55,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:55,495 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:55,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809522579] [2020-12-22 11:25:55,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177091425] [2020-12-22 11:25:55,495 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:55,624 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2020-12-22 11:25:55,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:25:55,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:25:55,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:55,965 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:25:55,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:25:55,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 18 [2020-12-22 11:25:55,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152487947] [2020-12-22 11:25:55,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:25:55,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:55,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:25:55,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-12-22 11:25:55,966 INFO L87 Difference]: Start difference. First operand 8964 states and 41031 transitions. Second operand 9 states. [2020-12-22 11:25:57,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:57,004 INFO L93 Difference]: Finished difference Result 29379 states and 112099 transitions. [2020-12-22 11:25:57,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:25:57,004 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-22 11:25:57,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:57,236 INFO L225 Difference]: With dead ends: 29379 [2020-12-22 11:25:57,236 INFO L226 Difference]: Without dead ends: 29356 [2020-12-22 11:25:57,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=442, Invalid=1364, Unknown=0, NotChecked=0, Total=1806 [2020-12-22 11:25:57,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29356 states. [2020-12-22 11:25:57,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29356 to 8573. [2020-12-22 11:25:57,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8573 states. [2020-12-22 11:25:57,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 39353 transitions. [2020-12-22 11:25:57,882 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 39353 transitions. Word has length 21 [2020-12-22 11:25:57,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:57,882 INFO L481 AbstractCegarLoop]: Abstraction has 8573 states and 39353 transitions. [2020-12-22 11:25:57,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:25:57,882 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 39353 transitions. [2020-12-22 11:25:57,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:25:57,885 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:57,885 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:58,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2020-12-22 11:25:58,095 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:58,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:58,096 INFO L82 PathProgramCache]: Analyzing trace with hash 2048893540, now seen corresponding path program 1 times [2020-12-22 11:25:58,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:58,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675311736] [2020-12-22 11:25:58,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:58,208 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:58,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675311736] [2020-12-22 11:25:58,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260017482] [2020-12-22 11:25:58,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:25:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:58,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 11:25:58,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:25:58,491 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:25:58,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:25:58,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2020-12-22 11:25:58,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327713490] [2020-12-22 11:25:58,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:25:58,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:25:58,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:25:58,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-12-22 11:25:58,492 INFO L87 Difference]: Start difference. First operand 8573 states and 39353 transitions. Second operand 7 states. [2020-12-22 11:25:58,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:25:58,986 INFO L93 Difference]: Finished difference Result 19727 states and 80274 transitions. [2020-12-22 11:25:58,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:25:58,987 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-12-22 11:25:58,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:25:59,042 INFO L225 Difference]: With dead ends: 19727 [2020-12-22 11:25:59,042 INFO L226 Difference]: Without dead ends: 19703 [2020-12-22 11:25:59,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:25:59,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19703 states. [2020-12-22 11:25:59,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19703 to 8847. [2020-12-22 11:25:59,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8847 states. [2020-12-22 11:25:59,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 40495 transitions. [2020-12-22 11:25:59,588 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 40495 transitions. Word has length 23 [2020-12-22 11:25:59,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:25:59,588 INFO L481 AbstractCegarLoop]: Abstraction has 8847 states and 40495 transitions. [2020-12-22 11:25:59,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:25:59,588 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 40495 transitions. [2020-12-22 11:25:59,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:25:59,590 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:25:59,590 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:25:59,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-12-22 11:25:59,791 INFO L429 AbstractCegarLoop]: === Iteration 19 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:25:59,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:25:59,792 INFO L82 PathProgramCache]: Analyzing trace with hash 2065648420, now seen corresponding path program 2 times [2020-12-22 11:25:59,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:25:59,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394018633] [2020-12-22 11:25:59,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:25:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:25:59,891 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:25:59,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394018633] [2020-12-22 11:25:59,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650836260] [2020-12-22 11:25:59,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:00,004 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:26:00,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:26:00,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 11:26:00,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:00,141 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:00,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:00,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2020-12-22 11:26:00,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946044631] [2020-12-22 11:26:00,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:26:00,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:00,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:26:00,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-12-22 11:26:00,143 INFO L87 Difference]: Start difference. First operand 8847 states and 40495 transitions. Second operand 7 states. [2020-12-22 11:26:00,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:00,694 INFO L93 Difference]: Finished difference Result 20209 states and 82213 transitions. [2020-12-22 11:26:00,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:26:00,695 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-12-22 11:26:00,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:00,751 INFO L225 Difference]: With dead ends: 20209 [2020-12-22 11:26:00,751 INFO L226 Difference]: Without dead ends: 20172 [2020-12-22 11:26:00,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:26:00,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20172 states. [2020-12-22 11:26:01,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20172 to 8496. [2020-12-22 11:26:01,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8496 states. [2020-12-22 11:26:01,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 38896 transitions. [2020-12-22 11:26:01,322 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 38896 transitions. Word has length 23 [2020-12-22 11:26:01,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:01,323 INFO L481 AbstractCegarLoop]: Abstraction has 8496 states and 38896 transitions. [2020-12-22 11:26:01,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:26:01,323 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 38896 transitions. [2020-12-22 11:26:01,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:26:01,325 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:01,326 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:01,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2020-12-22 11:26:01,537 INFO L429 AbstractCegarLoop]: === Iteration 20 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:01,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:01,538 INFO L82 PathProgramCache]: Analyzing trace with hash 2065651644, now seen corresponding path program 1 times [2020-12-22 11:26:01,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:01,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796427940] [2020-12-22 11:26:01,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:01,638 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:01,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796427940] [2020-12-22 11:26:01,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571432076] [2020-12-22 11:26:01,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:01,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 11:26:01,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:01,902 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:01,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:01,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2020-12-22 11:26:01,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954695759] [2020-12-22 11:26:01,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:26:01,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:01,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:26:01,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-12-22 11:26:01,904 INFO L87 Difference]: Start difference. First operand 8496 states and 38896 transitions. Second operand 7 states. [2020-12-22 11:26:02,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:02,312 INFO L93 Difference]: Finished difference Result 20488 states and 83323 transitions. [2020-12-22 11:26:02,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:26:02,313 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-12-22 11:26:02,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:02,362 INFO L225 Difference]: With dead ends: 20488 [2020-12-22 11:26:02,363 INFO L226 Difference]: Without dead ends: 20451 [2020-12-22 11:26:02,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:26:02,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20451 states. [2020-12-22 11:26:02,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20451 to 8768. [2020-12-22 11:26:02,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8768 states. [2020-12-22 11:26:02,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8768 states to 8768 states and 40121 transitions. [2020-12-22 11:26:02,918 INFO L78 Accepts]: Start accepts. Automaton has 8768 states and 40121 transitions. Word has length 23 [2020-12-22 11:26:02,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:02,918 INFO L481 AbstractCegarLoop]: Abstraction has 8768 states and 40121 transitions. [2020-12-22 11:26:02,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:26:02,918 INFO L276 IsEmpty]: Start isEmpty. Operand 8768 states and 40121 transitions. [2020-12-22 11:26:02,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:26:02,921 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:02,921 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:03,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:03,122 INFO L429 AbstractCegarLoop]: === Iteration 21 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:03,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:03,123 INFO L82 PathProgramCache]: Analyzing trace with hash 2065666927, now seen corresponding path program 1 times [2020-12-22 11:26:03,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:03,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993112617] [2020-12-22 11:26:03,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:03,229 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:03,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993112617] [2020-12-22 11:26:03,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143941401] [2020-12-22 11:26:03,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:03,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 11:26:03,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:03,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:03,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2020-12-22 11:26:03,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963429480] [2020-12-22 11:26:03,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:26:03,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:03,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:26:03,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-12-22 11:26:03,519 INFO L87 Difference]: Start difference. First operand 8768 states and 40121 transitions. Second operand 7 states. [2020-12-22 11:26:04,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:04,163 INFO L93 Difference]: Finished difference Result 20313 states and 82544 transitions. [2020-12-22 11:26:04,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:26:04,164 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-12-22 11:26:04,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:04,227 INFO L225 Difference]: With dead ends: 20313 [2020-12-22 11:26:04,227 INFO L226 Difference]: Without dead ends: 20276 [2020-12-22 11:26:04,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:26:04,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20276 states. [2020-12-22 11:26:04,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20276 to 9144. [2020-12-22 11:26:04,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9144 states. [2020-12-22 11:26:04,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9144 states to 9144 states and 41753 transitions. [2020-12-22 11:26:04,588 INFO L78 Accepts]: Start accepts. Automaton has 9144 states and 41753 transitions. Word has length 23 [2020-12-22 11:26:04,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:04,589 INFO L481 AbstractCegarLoop]: Abstraction has 9144 states and 41753 transitions. [2020-12-22 11:26:04,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:26:04,589 INFO L276 IsEmpty]: Start isEmpty. Operand 9144 states and 41753 transitions. [2020-12-22 11:26:04,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:26:04,591 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:04,591 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:04,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:04,791 INFO L429 AbstractCegarLoop]: === Iteration 22 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:04,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:04,792 INFO L82 PathProgramCache]: Analyzing trace with hash 2051991804, now seen corresponding path program 2 times [2020-12-22 11:26:04,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:04,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394024489] [2020-12-22 11:26:04,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:05,017 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:05,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394024489] [2020-12-22 11:26:05,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584639662] [2020-12-22 11:26:05,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:05,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:26:05,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:26:05,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-22 11:26:05,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:05,265 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:05,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:05,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2020-12-22 11:26:05,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771470377] [2020-12-22 11:26:05,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:26:05,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:05,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:26:05,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-12-22 11:26:05,266 INFO L87 Difference]: Start difference. First operand 9144 states and 41753 transitions. Second operand 7 states. [2020-12-22 11:26:05,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:05,730 INFO L93 Difference]: Finished difference Result 20485 states and 83152 transitions. [2020-12-22 11:26:05,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:26:05,731 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-12-22 11:26:05,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:05,786 INFO L225 Difference]: With dead ends: 20485 [2020-12-22 11:26:05,786 INFO L226 Difference]: Without dead ends: 20457 [2020-12-22 11:26:05,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:26:05,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20457 states. [2020-12-22 11:26:06,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20457 to 9331. [2020-12-22 11:26:06,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9331 states. [2020-12-22 11:26:06,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9331 states to 9331 states and 42574 transitions. [2020-12-22 11:26:06,258 INFO L78 Accepts]: Start accepts. Automaton has 9331 states and 42574 transitions. Word has length 23 [2020-12-22 11:26:06,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:06,258 INFO L481 AbstractCegarLoop]: Abstraction has 9331 states and 42574 transitions. [2020-12-22 11:26:06,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:26:06,258 INFO L276 IsEmpty]: Start isEmpty. Operand 9331 states and 42574 transitions. [2020-12-22 11:26:06,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 11:26:06,260 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:06,260 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:06,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:06,461 INFO L429 AbstractCegarLoop]: === Iteration 23 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:06,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:06,462 INFO L82 PathProgramCache]: Analyzing trace with hash 2066678767, now seen corresponding path program 2 times [2020-12-22 11:26:06,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:06,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623844524] [2020-12-22 11:26:06,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:06,557 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:06,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623844524] [2020-12-22 11:26:06,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434121434] [2020-12-22 11:26:06,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:06,673 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:26:06,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:26:06,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 11:26:06,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:06,804 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:06,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:06,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2020-12-22 11:26:06,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525725066] [2020-12-22 11:26:06,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:26:06,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:06,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:26:06,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-12-22 11:26:06,805 INFO L87 Difference]: Start difference. First operand 9331 states and 42574 transitions. Second operand 7 states. [2020-12-22 11:26:07,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:07,429 INFO L93 Difference]: Finished difference Result 21187 states and 86251 transitions. [2020-12-22 11:26:07,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:26:07,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-12-22 11:26:07,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:07,503 INFO L225 Difference]: With dead ends: 21187 [2020-12-22 11:26:07,503 INFO L226 Difference]: Without dead ends: 21150 [2020-12-22 11:26:07,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:26:07,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21150 states. [2020-12-22 11:26:07,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21150 to 9426. [2020-12-22 11:26:07,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9426 states. [2020-12-22 11:26:07,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9426 states to 9426 states and 43057 transitions. [2020-12-22 11:26:07,945 INFO L78 Accepts]: Start accepts. Automaton has 9426 states and 43057 transitions. Word has length 23 [2020-12-22 11:26:07,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:07,945 INFO L481 AbstractCegarLoop]: Abstraction has 9426 states and 43057 transitions. [2020-12-22 11:26:07,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:26:07,945 INFO L276 IsEmpty]: Start isEmpty. Operand 9426 states and 43057 transitions. [2020-12-22 11:26:07,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:07,949 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:07,949 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:08,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2020-12-22 11:26:08,150 INFO L429 AbstractCegarLoop]: === Iteration 24 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:08,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:08,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1711227692, now seen corresponding path program 1 times [2020-12-22 11:26:08,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:08,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600486652] [2020-12-22 11:26:08,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:08,209 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:08,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600486652] [2020-12-22 11:26:08,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617299910] [2020-12-22 11:26:08,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:08,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:26:08,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:08,541 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-22 11:26:08,544 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-12-22 11:26:08,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:08,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-22 11:26:08,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238126239] [2020-12-22 11:26:08,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:26:08,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:08,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:26:08,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:26:08,546 INFO L87 Difference]: Start difference. First operand 9426 states and 43057 transitions. Second operand 5 states. [2020-12-22 11:26:08,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:08,739 INFO L93 Difference]: Finished difference Result 15105 states and 66484 transitions. [2020-12-22 11:26:08,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:26:08,740 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-12-22 11:26:08,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:08,781 INFO L225 Difference]: With dead ends: 15105 [2020-12-22 11:26:08,781 INFO L226 Difference]: Without dead ends: 15073 [2020-12-22 11:26:08,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-12-22 11:26:08,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15073 states. [2020-12-22 11:26:09,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15073 to 11239. [2020-12-22 11:26:09,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11239 states. [2020-12-22 11:26:09,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11239 states to 11239 states and 51146 transitions. [2020-12-22 11:26:09,118 INFO L78 Accepts]: Start accepts. Automaton has 11239 states and 51146 transitions. Word has length 25 [2020-12-22 11:26:09,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:09,118 INFO L481 AbstractCegarLoop]: Abstraction has 11239 states and 51146 transitions. [2020-12-22 11:26:09,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:26:09,118 INFO L276 IsEmpty]: Start isEmpty. Operand 11239 states and 51146 transitions. [2020-12-22 11:26:09,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:09,122 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:09,122 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:09,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:09,323 INFO L429 AbstractCegarLoop]: === Iteration 25 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:09,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:09,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1891672280, now seen corresponding path program 1 times [2020-12-22 11:26:09,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:09,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848410320] [2020-12-22 11:26:09,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:09,610 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:09,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848410320] [2020-12-22 11:26:09,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451738457] [2020-12-22 11:26:09,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:09,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:26:09,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:09,929 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:09,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:09,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-22 11:26:09,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285321586] [2020-12-22 11:26:09,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:26:09,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:09,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:26:09,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-22 11:26:09,930 INFO L87 Difference]: Start difference. First operand 11239 states and 51146 transitions. Second operand 9 states. [2020-12-22 11:26:11,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:11,158 INFO L93 Difference]: Finished difference Result 33877 states and 131849 transitions. [2020-12-22 11:26:11,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:26:11,158 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-22 11:26:11,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:11,239 INFO L225 Difference]: With dead ends: 33877 [2020-12-22 11:26:11,239 INFO L226 Difference]: Without dead ends: 33851 [2020-12-22 11:26:11,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 11:26:11,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33851 states. [2020-12-22 11:26:11,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33851 to 11265. [2020-12-22 11:26:11,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11265 states. [2020-12-22 11:26:11,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11265 states to 11265 states and 51200 transitions. [2020-12-22 11:26:11,966 INFO L78 Accepts]: Start accepts. Automaton has 11265 states and 51200 transitions. Word has length 25 [2020-12-22 11:26:11,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:11,966 INFO L481 AbstractCegarLoop]: Abstraction has 11265 states and 51200 transitions. [2020-12-22 11:26:11,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:26:11,966 INFO L276 IsEmpty]: Start isEmpty. Operand 11265 states and 51200 transitions. [2020-12-22 11:26:11,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:11,971 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:11,971 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:12,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:12,172 INFO L429 AbstractCegarLoop]: === Iteration 26 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:12,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:12,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1891687563, now seen corresponding path program 1 times [2020-12-22 11:26:12,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:12,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675478487] [2020-12-22 11:26:12,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:12,325 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:12,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675478487] [2020-12-22 11:26:12,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185803474] [2020-12-22 11:26:12,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:12,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:26:12,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:12,677 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:12,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:12,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-22 11:26:12,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63418028] [2020-12-22 11:26:12,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:26:12,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:12,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:26:12,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-22 11:26:12,678 INFO L87 Difference]: Start difference. First operand 11265 states and 51200 transitions. Second operand 9 states. [2020-12-22 11:26:14,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:14,078 INFO L93 Difference]: Finished difference Result 33443 states and 130105 transitions. [2020-12-22 11:26:14,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:26:14,079 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-22 11:26:14,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:14,159 INFO L225 Difference]: With dead ends: 33443 [2020-12-22 11:26:14,160 INFO L226 Difference]: Without dead ends: 33417 [2020-12-22 11:26:14,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 11:26:14,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33417 states. [2020-12-22 11:26:14,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33417 to 11150. [2020-12-22 11:26:14,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11150 states. [2020-12-22 11:26:14,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11150 states to 11150 states and 50594 transitions. [2020-12-22 11:26:14,863 INFO L78 Accepts]: Start accepts. Automaton has 11150 states and 50594 transitions. Word has length 25 [2020-12-22 11:26:14,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:14,863 INFO L481 AbstractCegarLoop]: Abstraction has 11150 states and 50594 transitions. [2020-12-22 11:26:14,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:26:14,863 INFO L276 IsEmpty]: Start isEmpty. Operand 11150 states and 50594 transitions. [2020-12-22 11:26:14,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:14,867 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:14,867 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:15,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2020-12-22 11:26:15,069 INFO L429 AbstractCegarLoop]: === Iteration 27 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:15,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:15,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1878012440, now seen corresponding path program 2 times [2020-12-22 11:26:15,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:15,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389877795] [2020-12-22 11:26:15,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:15,198 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:15,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389877795] [2020-12-22 11:26:15,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109860879] [2020-12-22 11:26:15,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:15,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:26:15,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:26:15,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:26:15,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:15,494 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:15,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:15,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-22 11:26:15,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204185175] [2020-12-22 11:26:15,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:26:15,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:15,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:26:15,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-22 11:26:15,496 INFO L87 Difference]: Start difference. First operand 11150 states and 50594 transitions. Second operand 9 states. [2020-12-22 11:26:16,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:16,766 INFO L93 Difference]: Finished difference Result 33189 states and 128963 transitions. [2020-12-22 11:26:16,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:26:16,766 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-22 11:26:16,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:16,847 INFO L225 Difference]: With dead ends: 33189 [2020-12-22 11:26:16,847 INFO L226 Difference]: Without dead ends: 33161 [2020-12-22 11:26:16,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 11:26:17,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33161 states. [2020-12-22 11:26:17,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33161 to 10991. [2020-12-22 11:26:17,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10991 states. [2020-12-22 11:26:17,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10991 states to 10991 states and 49794 transitions. [2020-12-22 11:26:17,596 INFO L78 Accepts]: Start accepts. Automaton has 10991 states and 49794 transitions. Word has length 25 [2020-12-22 11:26:17,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:17,596 INFO L481 AbstractCegarLoop]: Abstraction has 10991 states and 49794 transitions. [2020-12-22 11:26:17,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:26:17,597 INFO L276 IsEmpty]: Start isEmpty. Operand 10991 states and 49794 transitions. [2020-12-22 11:26:17,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:17,601 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:17,601 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:17,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2020-12-22 11:26:17,802 INFO L429 AbstractCegarLoop]: === Iteration 28 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:17,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:17,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1892699403, now seen corresponding path program 2 times [2020-12-22 11:26:17,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:17,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516449984] [2020-12-22 11:26:17,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:17,936 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:17,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516449984] [2020-12-22 11:26:17,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610410715] [2020-12-22 11:26:17,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:18,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:26:18,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:26:18,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:26:18,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:18,290 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:18,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:18,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-22 11:26:18,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905498913] [2020-12-22 11:26:18,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:26:18,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:18,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:26:18,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-22 11:26:18,291 INFO L87 Difference]: Start difference. First operand 10991 states and 49794 transitions. Second operand 9 states. [2020-12-22 11:26:19,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:19,570 INFO L93 Difference]: Finished difference Result 32647 states and 126668 transitions. [2020-12-22 11:26:19,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:26:19,571 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-22 11:26:19,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:19,650 INFO L225 Difference]: With dead ends: 32647 [2020-12-22 11:26:19,650 INFO L226 Difference]: Without dead ends: 32619 [2020-12-22 11:26:19,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 11:26:19,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32619 states. [2020-12-22 11:26:20,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32619 to 10881. [2020-12-22 11:26:20,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10881 states. [2020-12-22 11:26:20,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10881 states to 10881 states and 49235 transitions. [2020-12-22 11:26:20,359 INFO L78 Accepts]: Start accepts. Automaton has 10881 states and 49235 transitions. Word has length 25 [2020-12-22 11:26:20,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:20,359 INFO L481 AbstractCegarLoop]: Abstraction has 10881 states and 49235 transitions. [2020-12-22 11:26:20,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:26:20,360 INFO L276 IsEmpty]: Start isEmpty. Operand 10881 states and 49235 transitions. [2020-12-22 11:26:20,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:20,363 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:20,363 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:20,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2020-12-22 11:26:20,564 INFO L429 AbstractCegarLoop]: === Iteration 29 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:20,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:20,565 INFO L82 PathProgramCache]: Analyzing trace with hash 813242776, now seen corresponding path program 3 times [2020-12-22 11:26:20,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:20,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806445095] [2020-12-22 11:26:20,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:20,691 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:20,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806445095] [2020-12-22 11:26:20,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728838118] [2020-12-22 11:26:20,691 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:20,799 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2020-12-22 11:26:20,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:26:20,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:26:20,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:20,986 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:20,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:20,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-22 11:26:20,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971224628] [2020-12-22 11:26:20,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:26:20,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:20,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:26:20,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-22 11:26:20,988 INFO L87 Difference]: Start difference. First operand 10881 states and 49235 transitions. Second operand 9 states. [2020-12-22 11:26:22,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:22,360 INFO L93 Difference]: Finished difference Result 32649 states and 126657 transitions. [2020-12-22 11:26:22,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:26:22,361 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-22 11:26:22,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:22,444 INFO L225 Difference]: With dead ends: 32649 [2020-12-22 11:26:22,444 INFO L226 Difference]: Without dead ends: 32623 [2020-12-22 11:26:22,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 11:26:22,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32623 states. [2020-12-22 11:26:23,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32623 to 10608. [2020-12-22 11:26:23,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10608 states. [2020-12-22 11:26:23,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10608 states to 10608 states and 47948 transitions. [2020-12-22 11:26:23,229 INFO L78 Accepts]: Start accepts. Automaton has 10608 states and 47948 transitions. Word has length 25 [2020-12-22 11:26:23,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:23,230 INFO L481 AbstractCegarLoop]: Abstraction has 10608 states and 47948 transitions. [2020-12-22 11:26:23,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:26:23,230 INFO L276 IsEmpty]: Start isEmpty. Operand 10608 states and 47948 transitions. [2020-12-22 11:26:23,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:23,234 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:23,234 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:23,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:23,435 INFO L429 AbstractCegarLoop]: === Iteration 30 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:23,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:23,436 INFO L82 PathProgramCache]: Analyzing trace with hash 813258059, now seen corresponding path program 3 times [2020-12-22 11:26:23,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:23,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350261283] [2020-12-22 11:26:23,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:23,571 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:23,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350261283] [2020-12-22 11:26:23,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25556531] [2020-12-22 11:26:23,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:23,699 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2020-12-22 11:26:23,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:26:23,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:26:23,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:23,910 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:23,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:23,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-22 11:26:23,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645376874] [2020-12-22 11:26:23,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:26:23,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:23,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:26:23,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-22 11:26:23,912 INFO L87 Difference]: Start difference. First operand 10608 states and 47948 transitions. Second operand 9 states. [2020-12-22 11:26:25,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:25,223 INFO L93 Difference]: Finished difference Result 32110 states and 124409 transitions. [2020-12-22 11:26:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:26:25,224 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-22 11:26:25,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:25,307 INFO L225 Difference]: With dead ends: 32110 [2020-12-22 11:26:25,307 INFO L226 Difference]: Without dead ends: 32084 [2020-12-22 11:26:25,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 11:26:25,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32084 states. [2020-12-22 11:26:25,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32084 to 10323. [2020-12-22 11:26:25,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10323 states. [2020-12-22 11:26:26,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10323 states to 10323 states and 46617 transitions. [2020-12-22 11:26:26,041 INFO L78 Accepts]: Start accepts. Automaton has 10323 states and 46617 transitions. Word has length 25 [2020-12-22 11:26:26,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:26,041 INFO L481 AbstractCegarLoop]: Abstraction has 10323 states and 46617 transitions. [2020-12-22 11:26:26,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:26:26,042 INFO L276 IsEmpty]: Start isEmpty. Operand 10323 states and 46617 transitions. [2020-12-22 11:26:26,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:26,046 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:26,046 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:26,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:26,247 INFO L429 AbstractCegarLoop]: === Iteration 31 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:26,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:26,248 INFO L82 PathProgramCache]: Analyzing trace with hash 816337816, now seen corresponding path program 4 times [2020-12-22 11:26:26,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:26,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778295784] [2020-12-22 11:26:26,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:26,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778295784] [2020-12-22 11:26:26,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139592395] [2020-12-22 11:26:26,370 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:26,487 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-22 11:26:26,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:26:26,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 11:26:26,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:26,790 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:26,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:26:26,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2020-12-22 11:26:26,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948640276] [2020-12-22 11:26:26,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-12-22 11:26:26,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:26,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-12-22 11:26:26,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:26:26,791 INFO L87 Difference]: Start difference. First operand 10323 states and 46617 transitions. Second operand 25 states. [2020-12-22 11:26:28,102 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-22 11:26:30,644 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-22 11:26:31,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:31,119 INFO L93 Difference]: Finished difference Result 35571 states and 137190 transitions. [2020-12-22 11:26:31,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2020-12-22 11:26:31,119 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2020-12-22 11:26:31,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:31,221 INFO L225 Difference]: With dead ends: 35571 [2020-12-22 11:26:31,222 INFO L226 Difference]: Without dead ends: 35514 [2020-12-22 11:26:31,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3699 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2079, Invalid=8841, Unknown=0, NotChecked=0, Total=10920 [2020-12-22 11:26:31,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35514 states. [2020-12-22 11:26:31,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35514 to 10243. [2020-12-22 11:26:31,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10243 states. [2020-12-22 11:26:31,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10243 states to 10243 states and 46264 transitions. [2020-12-22 11:26:31,914 INFO L78 Accepts]: Start accepts. Automaton has 10243 states and 46264 transitions. Word has length 25 [2020-12-22 11:26:31,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:31,914 INFO L481 AbstractCegarLoop]: Abstraction has 10243 states and 46264 transitions. [2020-12-22 11:26:31,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-12-22 11:26:31,914 INFO L276 IsEmpty]: Start isEmpty. Operand 10243 states and 46264 transitions. [2020-12-22 11:26:31,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:31,919 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:31,919 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:32,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:32,120 INFO L429 AbstractCegarLoop]: === Iteration 32 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:32,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:32,121 INFO L82 PathProgramCache]: Analyzing trace with hash 816356323, now seen corresponding path program 1 times [2020-12-22 11:26:32,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:32,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491527419] [2020-12-22 11:26:32,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:32,242 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:32,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491527419] [2020-12-22 11:26:32,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570666908] [2020-12-22 11:26:32,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:32,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:26:32,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:32,542 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:32,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:32,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-22 11:26:32,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549362604] [2020-12-22 11:26:32,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:26:32,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:32,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:26:32,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-22 11:26:32,545 INFO L87 Difference]: Start difference. First operand 10243 states and 46264 transitions. Second operand 9 states. [2020-12-22 11:26:33,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:33,835 INFO L93 Difference]: Finished difference Result 32141 states and 124784 transitions. [2020-12-22 11:26:33,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:26:33,836 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-22 11:26:33,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:33,916 INFO L225 Difference]: With dead ends: 32141 [2020-12-22 11:26:33,916 INFO L226 Difference]: Without dead ends: 32115 [2020-12-22 11:26:33,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 11:26:34,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32115 states. [2020-12-22 11:26:34,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32115 to 10251. [2020-12-22 11:26:34,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10251 states. [2020-12-22 11:26:34,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10251 states to 10251 states and 46267 transitions. [2020-12-22 11:26:34,609 INFO L78 Accepts]: Start accepts. Automaton has 10251 states and 46267 transitions. Word has length 25 [2020-12-22 11:26:34,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:34,609 INFO L481 AbstractCegarLoop]: Abstraction has 10251 states and 46267 transitions. [2020-12-22 11:26:34,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:26:34,610 INFO L276 IsEmpty]: Start isEmpty. Operand 10251 states and 46267 transitions. [2020-12-22 11:26:34,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:34,614 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:34,614 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:34,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:34,815 INFO L429 AbstractCegarLoop]: === Iteration 33 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:34,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:34,817 INFO L82 PathProgramCache]: Analyzing trace with hash 831024779, now seen corresponding path program 4 times [2020-12-22 11:26:34,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:34,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468673012] [2020-12-22 11:26:34,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:34,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468673012] [2020-12-22 11:26:34,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999637299] [2020-12-22 11:26:34,964 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:35,073 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-22 11:26:35,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:26:35,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 11:26:35,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:35,360 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:35,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:26:35,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2020-12-22 11:26:35,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296153431] [2020-12-22 11:26:35,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-12-22 11:26:35,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:35,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-12-22 11:26:35,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:26:35,362 INFO L87 Difference]: Start difference. First operand 10251 states and 46267 transitions. Second operand 25 states. [2020-12-22 11:26:39,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:39,455 INFO L93 Difference]: Finished difference Result 34867 states and 134386 transitions. [2020-12-22 11:26:39,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2020-12-22 11:26:39,456 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2020-12-22 11:26:39,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:39,544 INFO L225 Difference]: With dead ends: 34867 [2020-12-22 11:26:39,545 INFO L226 Difference]: Without dead ends: 34810 [2020-12-22 11:26:39,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3462 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2004, Invalid=8298, Unknown=0, NotChecked=0, Total=10302 [2020-12-22 11:26:39,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34810 states. [2020-12-22 11:26:40,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34810 to 10299. [2020-12-22 11:26:40,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10299 states. [2020-12-22 11:26:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10299 states to 10299 states and 46501 transitions. [2020-12-22 11:26:40,270 INFO L78 Accepts]: Start accepts. Automaton has 10299 states and 46501 transitions. Word has length 25 [2020-12-22 11:26:40,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:40,270 INFO L481 AbstractCegarLoop]: Abstraction has 10299 states and 46501 transitions. [2020-12-22 11:26:40,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-12-22 11:26:40,270 INFO L276 IsEmpty]: Start isEmpty. Operand 10299 states and 46501 transitions. [2020-12-22 11:26:40,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:40,274 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:40,274 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:40,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2020-12-22 11:26:40,475 INFO L429 AbstractCegarLoop]: === Iteration 34 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:40,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:40,476 INFO L82 PathProgramCache]: Analyzing trace with hash 831028003, now seen corresponding path program 2 times [2020-12-22 11:26:40,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:40,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858521960] [2020-12-22 11:26:40,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:40,619 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:40,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858521960] [2020-12-22 11:26:40,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053993896] [2020-12-22 11:26:40,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:40,733 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:26:40,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:26:40,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:26:40,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:40,941 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:40,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:40,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-22 11:26:40,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439461597] [2020-12-22 11:26:40,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:26:40,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:40,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:26:40,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-22 11:26:40,943 INFO L87 Difference]: Start difference. First operand 10299 states and 46501 transitions. Second operand 9 states. [2020-12-22 11:26:42,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:42,071 INFO L93 Difference]: Finished difference Result 31570 states and 122547 transitions. [2020-12-22 11:26:42,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:26:42,072 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-22 11:26:42,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:42,362 INFO L225 Difference]: With dead ends: 31570 [2020-12-22 11:26:42,362 INFO L226 Difference]: Without dead ends: 31537 [2020-12-22 11:26:42,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 11:26:42,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31537 states. [2020-12-22 11:26:42,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31537 to 10244. [2020-12-22 11:26:42,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10244 states. [2020-12-22 11:26:42,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10244 states to 10244 states and 46203 transitions. [2020-12-22 11:26:42,835 INFO L78 Accepts]: Start accepts. Automaton has 10244 states and 46203 transitions. Word has length 25 [2020-12-22 11:26:42,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:42,835 INFO L481 AbstractCegarLoop]: Abstraction has 10244 states and 46203 transitions. [2020-12-22 11:26:42,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:26:42,835 INFO L276 IsEmpty]: Start isEmpty. Operand 10244 states and 46203 transitions. [2020-12-22 11:26:42,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:42,839 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:42,839 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:43,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:43,040 INFO L429 AbstractCegarLoop]: === Iteration 35 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:43,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:43,041 INFO L82 PathProgramCache]: Analyzing trace with hash 557378584, now seen corresponding path program 5 times [2020-12-22 11:26:43,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:43,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16400049] [2020-12-22 11:26:43,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:43,168 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:43,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16400049] [2020-12-22 11:26:43,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724840876] [2020-12-22 11:26:43,168 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:43,407 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-12-22 11:26:43,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:26:43,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:26:43,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:43,616 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:43,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:43,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-22 11:26:43,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095537715] [2020-12-22 11:26:43,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:26:43,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:43,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:26:43,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-22 11:26:43,618 INFO L87 Difference]: Start difference. First operand 10244 states and 46203 transitions. Second operand 9 states. [2020-12-22 11:26:44,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:44,747 INFO L93 Difference]: Finished difference Result 31516 states and 122021 transitions. [2020-12-22 11:26:44,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:26:44,747 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-22 11:26:44,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:44,826 INFO L225 Difference]: With dead ends: 31516 [2020-12-22 11:26:44,826 INFO L226 Difference]: Without dead ends: 31490 [2020-12-22 11:26:44,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 11:26:45,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31490 states. [2020-12-22 11:26:45,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31490 to 10032. [2020-12-22 11:26:45,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10032 states. [2020-12-22 11:26:45,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10032 states to 10032 states and 45208 transitions. [2020-12-22 11:26:45,479 INFO L78 Accepts]: Start accepts. Automaton has 10032 states and 45208 transitions. Word has length 25 [2020-12-22 11:26:45,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:45,479 INFO L481 AbstractCegarLoop]: Abstraction has 10032 states and 45208 transitions. [2020-12-22 11:26:45,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:26:45,480 INFO L276 IsEmpty]: Start isEmpty. Operand 10032 states and 45208 transitions. [2020-12-22 11:26:45,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:45,483 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:45,483 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:45,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2020-12-22 11:26:45,691 INFO L429 AbstractCegarLoop]: === Iteration 36 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:45,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:45,691 INFO L82 PathProgramCache]: Analyzing trace with hash 574133464, now seen corresponding path program 6 times [2020-12-22 11:26:45,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:45,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144191485] [2020-12-22 11:26:45,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:45,813 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:45,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144191485] [2020-12-22 11:26:45,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150475967] [2020-12-22 11:26:45,814 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:45,928 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2020-12-22 11:26:45,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:26:45,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 11:26:45,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:46,144 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:46,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:46,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-22 11:26:46,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924197973] [2020-12-22 11:26:46,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:26:46,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:46,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:26:46,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-22 11:26:46,145 INFO L87 Difference]: Start difference. First operand 10032 states and 45208 transitions. Second operand 9 states. [2020-12-22 11:26:46,318 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-22 11:26:47,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:47,384 INFO L93 Difference]: Finished difference Result 31191 states and 120629 transitions. [2020-12-22 11:26:47,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:26:47,385 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-22 11:26:47,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:47,457 INFO L225 Difference]: With dead ends: 31191 [2020-12-22 11:26:47,457 INFO L226 Difference]: Without dead ends: 31163 [2020-12-22 11:26:47,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 11:26:47,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31163 states. [2020-12-22 11:26:48,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31163 to 9737. [2020-12-22 11:26:48,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9737 states. [2020-12-22 11:26:48,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9737 states to 9737 states and 43850 transitions. [2020-12-22 11:26:48,126 INFO L78 Accepts]: Start accepts. Automaton has 9737 states and 43850 transitions. Word has length 25 [2020-12-22 11:26:48,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:48,126 INFO L481 AbstractCegarLoop]: Abstraction has 9737 states and 43850 transitions. [2020-12-22 11:26:48,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:26:48,127 INFO L276 IsEmpty]: Start isEmpty. Operand 9737 states and 43850 transitions. [2020-12-22 11:26:48,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:48,130 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:48,131 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:48,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2020-12-22 11:26:48,332 INFO L429 AbstractCegarLoop]: === Iteration 37 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:48,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:48,332 INFO L82 PathProgramCache]: Analyzing trace with hash 574151971, now seen corresponding path program 3 times [2020-12-22 11:26:48,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:48,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723689578] [2020-12-22 11:26:48,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:48,460 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:48,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723689578] [2020-12-22 11:26:48,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572047028] [2020-12-22 11:26:48,461 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:48,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2020-12-22 11:26:48,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:26:48,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 11:26:48,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:48,772 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:26:48,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:26:48,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-22 11:26:48,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911497470] [2020-12-22 11:26:48,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:26:48,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:48,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:26:48,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-22 11:26:48,773 INFO L87 Difference]: Start difference. First operand 9737 states and 43850 transitions. Second operand 9 states. [2020-12-22 11:26:50,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:50,073 INFO L93 Difference]: Finished difference Result 31014 states and 120075 transitions. [2020-12-22 11:26:50,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:26:50,074 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-22 11:26:50,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:50,145 INFO L225 Difference]: With dead ends: 31014 [2020-12-22 11:26:50,145 INFO L226 Difference]: Without dead ends: 30988 [2020-12-22 11:26:50,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 11:26:50,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30988 states. [2020-12-22 11:26:50,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30988 to 9643. [2020-12-22 11:26:50,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9643 states. [2020-12-22 11:26:50,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9643 states to 9643 states and 43388 transitions. [2020-12-22 11:26:50,797 INFO L78 Accepts]: Start accepts. Automaton has 9643 states and 43388 transitions. Word has length 25 [2020-12-22 11:26:50,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:50,797 INFO L481 AbstractCegarLoop]: Abstraction has 9643 states and 43388 transitions. [2020-12-22 11:26:50,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:26:50,797 INFO L276 IsEmpty]: Start isEmpty. Operand 9643 states and 43388 transitions. [2020-12-22 11:26:50,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:50,800 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:50,800 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:51,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:51,002 INFO L429 AbstractCegarLoop]: === Iteration 38 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:51,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:51,003 INFO L82 PathProgramCache]: Analyzing trace with hash 575163811, now seen corresponding path program 4 times [2020-12-22 11:26:51,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:51,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034473387] [2020-12-22 11:26:51,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:51,126 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:51,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034473387] [2020-12-22 11:26:51,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672097304] [2020-12-22 11:26:51,127 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:51,255 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-22 11:26:51,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:26:51,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 11:26:51,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:51,530 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:51,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:26:51,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2020-12-22 11:26:51,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693570457] [2020-12-22 11:26:51,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-12-22 11:26:51,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:51,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-12-22 11:26:51,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:26:51,531 INFO L87 Difference]: Start difference. First operand 9643 states and 43388 transitions. Second operand 25 states. [2020-12-22 11:26:52,799 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-22 11:26:55,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:26:55,979 INFO L93 Difference]: Finished difference Result 34855 states and 134813 transitions. [2020-12-22 11:26:55,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2020-12-22 11:26:55,980 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2020-12-22 11:26:55,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:26:56,063 INFO L225 Difference]: With dead ends: 34855 [2020-12-22 11:26:56,063 INFO L226 Difference]: Without dead ends: 34798 [2020-12-22 11:26:56,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3681 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2085, Invalid=8835, Unknown=0, NotChecked=0, Total=10920 [2020-12-22 11:26:56,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34798 states. [2020-12-22 11:26:56,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34798 to 9531. [2020-12-22 11:26:56,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9531 states. [2020-12-22 11:26:56,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9531 states to 9531 states and 42888 transitions. [2020-12-22 11:26:56,736 INFO L78 Accepts]: Start accepts. Automaton has 9531 states and 42888 transitions. Word has length 25 [2020-12-22 11:26:56,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:26:56,736 INFO L481 AbstractCegarLoop]: Abstraction has 9531 states and 42888 transitions. [2020-12-22 11:26:56,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-12-22 11:26:56,736 INFO L276 IsEmpty]: Start isEmpty. Operand 9531 states and 42888 transitions. [2020-12-22 11:26:56,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:26:56,740 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:26:56,740 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:26:56,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2020-12-22 11:26:56,946 INFO L429 AbstractCegarLoop]: === Iteration 39 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:26:56,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:26:56,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1786648139, now seen corresponding path program 5 times [2020-12-22 11:26:56,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:26:56,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242258616] [2020-12-22 11:26:56,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:26:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:26:57,092 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:57,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242258616] [2020-12-22 11:26:57,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455102627] [2020-12-22 11:26:57,093 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:26:57,213 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-12-22 11:26:57,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:26:57,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 11:26:57,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:26:57,524 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:26:57,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:26:57,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2020-12-22 11:26:57,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938725132] [2020-12-22 11:26:57,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-12-22 11:26:57,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:26:57,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-12-22 11:26:57,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:26:57,526 INFO L87 Difference]: Start difference. First operand 9531 states and 42888 transitions. Second operand 25 states. [2020-12-22 11:27:01,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:27:01,877 INFO L93 Difference]: Finished difference Result 34260 states and 132219 transitions. [2020-12-22 11:27:01,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2020-12-22 11:27:01,877 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2020-12-22 11:27:01,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:27:01,967 INFO L225 Difference]: With dead ends: 34260 [2020-12-22 11:27:01,967 INFO L226 Difference]: Without dead ends: 34214 [2020-12-22 11:27:01,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3628 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2068, Invalid=8644, Unknown=0, NotChecked=0, Total=10712 [2020-12-22 11:27:02,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34214 states. [2020-12-22 11:27:02,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34214 to 9368. [2020-12-22 11:27:02,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9368 states. [2020-12-22 11:27:02,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9368 states to 9368 states and 42129 transitions. [2020-12-22 11:27:02,661 INFO L78 Accepts]: Start accepts. Automaton has 9368 states and 42129 transitions. Word has length 25 [2020-12-22 11:27:02,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:27:02,662 INFO L481 AbstractCegarLoop]: Abstraction has 9368 states and 42129 transitions. [2020-12-22 11:27:02,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-12-22 11:27:02,662 INFO L276 IsEmpty]: Start isEmpty. Operand 9368 states and 42129 transitions. [2020-12-22 11:27:02,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:27:02,666 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:27:02,666 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:27:02,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:02,882 INFO L429 AbstractCegarLoop]: === Iteration 40 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:27:02,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:27:02,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1803403019, now seen corresponding path program 6 times [2020-12-22 11:27:02,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:27:02,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582611578] [2020-12-22 11:27:02,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:27:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:03,022 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:03,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582611578] [2020-12-22 11:27:03,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824022070] [2020-12-22 11:27:03,022 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:03,133 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2020-12-22 11:27:03,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:27:03,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:27:03,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:27:03,343 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:27:03,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:27:03,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-22 11:27:03,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900891356] [2020-12-22 11:27:03,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:27:03,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:27:03,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:27:03,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-22 11:27:03,345 INFO L87 Difference]: Start difference. First operand 9368 states and 42129 transitions. Second operand 9 states. [2020-12-22 11:27:04,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:27:04,470 INFO L93 Difference]: Finished difference Result 30701 states and 118720 transitions. [2020-12-22 11:27:04,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:27:04,471 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-22 11:27:04,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:27:04,786 INFO L225 Difference]: With dead ends: 30701 [2020-12-22 11:27:04,787 INFO L226 Difference]: Without dead ends: 30668 [2020-12-22 11:27:04,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 11:27:04,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30668 states. [2020-12-22 11:27:05,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30668 to 9053. [2020-12-22 11:27:05,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9053 states. [2020-12-22 11:27:05,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9053 states to 9053 states and 40718 transitions. [2020-12-22 11:27:05,252 INFO L78 Accepts]: Start accepts. Automaton has 9053 states and 40718 transitions. Word has length 25 [2020-12-22 11:27:05,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:27:05,252 INFO L481 AbstractCegarLoop]: Abstraction has 9053 states and 40718 transitions. [2020-12-22 11:27:05,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:27:05,252 INFO L276 IsEmpty]: Start isEmpty. Operand 9053 states and 40718 transitions. [2020-12-22 11:27:05,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:27:05,255 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:27:05,255 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:27:05,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2020-12-22 11:27:05,463 INFO L429 AbstractCegarLoop]: === Iteration 41 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:27:05,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:27:05,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1803406243, now seen corresponding path program 5 times [2020-12-22 11:27:05,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:27:05,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524780766] [2020-12-22 11:27:05,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:27:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:05,596 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:05,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524780766] [2020-12-22 11:27:05,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878647359] [2020-12-22 11:27:05,597 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:05,709 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-12-22 11:27:05,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:27:05,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 11:27:05,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:27:06,147 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:06,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:27:06,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2020-12-22 11:27:06,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100450650] [2020-12-22 11:27:06,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-12-22 11:27:06,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:27:06,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-12-22 11:27:06,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2020-12-22 11:27:06,150 INFO L87 Difference]: Start difference. First operand 9053 states and 40718 transitions. Second operand 25 states. [2020-12-22 11:27:10,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:27:10,338 INFO L93 Difference]: Finished difference Result 32866 states and 126139 transitions. [2020-12-22 11:27:10,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2020-12-22 11:27:10,339 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2020-12-22 11:27:10,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:27:10,421 INFO L225 Difference]: With dead ends: 32866 [2020-12-22 11:27:10,421 INFO L226 Difference]: Without dead ends: 32820 [2020-12-22 11:27:10,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3739 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2075, Invalid=8845, Unknown=0, NotChecked=0, Total=10920 [2020-12-22 11:27:10,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32820 states. [2020-12-22 11:27:11,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32820 to 8951. [2020-12-22 11:27:11,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8951 states. [2020-12-22 11:27:11,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8951 states to 8951 states and 40236 transitions. [2020-12-22 11:27:11,045 INFO L78 Accepts]: Start accepts. Automaton has 8951 states and 40236 transitions. Word has length 25 [2020-12-22 11:27:11,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:27:11,046 INFO L481 AbstractCegarLoop]: Abstraction has 8951 states and 40236 transitions. [2020-12-22 11:27:11,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-12-22 11:27:11,046 INFO L276 IsEmpty]: Start isEmpty. Operand 8951 states and 40236 transitions. [2020-12-22 11:27:11,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 11:27:11,050 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:27:11,050 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:27:11,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,60 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:11,257 INFO L429 AbstractCegarLoop]: === Iteration 42 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:27:11,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:27:11,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1789746403, now seen corresponding path program 6 times [2020-12-22 11:27:11,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:27:11,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090525134] [2020-12-22 11:27:11,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:27:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:11,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090525134] [2020-12-22 11:27:11,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480083532] [2020-12-22 11:27:11,397 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:11,511 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2020-12-22 11:27:11,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:27:11,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 11:27:11,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:27:11,725 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 11:27:11,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:27:11,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-22 11:27:11,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905102386] [2020-12-22 11:27:11,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 11:27:11,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:27:11,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 11:27:11,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-22 11:27:11,726 INFO L87 Difference]: Start difference. First operand 8951 states and 40236 transitions. Second operand 9 states. [2020-12-22 11:27:12,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:27:12,979 INFO L93 Difference]: Finished difference Result 29960 states and 115617 transitions. [2020-12-22 11:27:12,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:27:12,980 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-22 11:27:12,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:27:13,055 INFO L225 Difference]: With dead ends: 29960 [2020-12-22 11:27:13,056 INFO L226 Difference]: Without dead ends: 29927 [2020-12-22 11:27:13,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-22 11:27:13,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29927 states. [2020-12-22 11:27:13,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29927 to 8560. [2020-12-22 11:27:13,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8560 states. [2020-12-22 11:27:13,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 38495 transitions. [2020-12-22 11:27:13,731 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 38495 transitions. Word has length 25 [2020-12-22 11:27:13,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:27:13,732 INFO L481 AbstractCegarLoop]: Abstraction has 8560 states and 38495 transitions. [2020-12-22 11:27:13,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 11:27:13,732 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 38495 transitions. [2020-12-22 11:27:13,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 11:27:13,736 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:27:13,737 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:27:13,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2020-12-22 11:27:13,952 INFO L429 AbstractCegarLoop]: === Iteration 43 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:27:13,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:27:13,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1513513479, now seen corresponding path program 1 times [2020-12-22 11:27:13,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:27:13,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810552675] [2020-12-22 11:27:13,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:27:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:27:13,975 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:27:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:27:14,001 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:27:14,022 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 11:27:14,022 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 11:27:14,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2020-12-22 11:27:14,023 WARN L342 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-12-22 11:27:14,023 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-12-22 11:27:14,047 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,047 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,047 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,047 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,048 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,048 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,048 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,048 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,048 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,048 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,048 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,048 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,048 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,049 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,049 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,049 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,049 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,049 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,049 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,050 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,050 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,050 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,050 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,050 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,050 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,050 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,050 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,050 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,052 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,052 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,052 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,052 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,052 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,053 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,053 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,053 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,053 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,053 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,053 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,053 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,053 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,053 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,053 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,054 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,054 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,054 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,054 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,054 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,054 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,054 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,054 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,054 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,054 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,055 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,055 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,055 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,055 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,055 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,055 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,055 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,055 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,055 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,055 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,056 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,056 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,056 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,056 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,056 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,056 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,056 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,056 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,056 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,056 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,057 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,057 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,057 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,057 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,057 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,057 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,057 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,057 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,057 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,058 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,058 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,058 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,058 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,058 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,058 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,058 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,058 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,058 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,059 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,059 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,059 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,059 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,059 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,059 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,059 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,059 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,059 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,060 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,060 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,060 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,060 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,060 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,060 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,060 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,061 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,061 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,061 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,061 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,061 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,061 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,061 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,061 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,061 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,061 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,062 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,062 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,062 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,062 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,062 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,062 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,062 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,062 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,062 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,062 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,063 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,063 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,063 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,063 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,063 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,063 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,063 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,063 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,063 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,063 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,064 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,064 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,064 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,064 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,064 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,064 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,064 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,064 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,064 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,065 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,065 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,065 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,065 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,065 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,065 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,065 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,065 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,065 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,065 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,066 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,066 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,066 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,066 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,066 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,066 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,066 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,066 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,066 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,066 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,067 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,067 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,067 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,067 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,067 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,067 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,067 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,067 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,067 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,067 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,068 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,068 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,068 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,068 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,068 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,068 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,068 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,068 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,068 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,069 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,069 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,069 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,069 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,069 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,069 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,069 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,069 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,069 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,069 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,070 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,070 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,070 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,070 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,070 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,070 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,070 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,070 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,070 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,071 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,071 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,071 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,071 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,071 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,073 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,073 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,073 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,073 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,073 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,074 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,075 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,075 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,075 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,075 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,076 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,076 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,076 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,077 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,077 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,079 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,079 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,079 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,079 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,079 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,082 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,082 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,082 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,082 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,082 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,084 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,084 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,084 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,084 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,084 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,084 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,085 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,085 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,086 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,086 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,086 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,086 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,087 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,087 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,087 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,087 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,088 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,088 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,089 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,089 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,089 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,089 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,089 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,089 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,091 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,091 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,091 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,091 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,091 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,091 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,092 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,092 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,093 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,093 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,093 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,093 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:27:14,094 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:27:14,094 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-12-22 11:27:14,095 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:27:14,095 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:27:14,095 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:27:14,095 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:27:14,095 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:27:14,095 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:27:14,095 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:27:14,095 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:27:14,097 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:27:14,097 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 148 transitions, 416 flow [2020-12-22 11:27:14,097 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 148 transitions, 416 flow [2020-12-22 11:27:14,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 166 places, 148 transitions, 416 flow [2020-12-22 11:27:14,118 INFO L129 PetriNetUnfolder]: 9/178 cut-off events. [2020-12-22 11:27:14,119 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-12-22 11:27:14,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 178 events. 9/178 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 291 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 213. Up to 14 conditions per place. [2020-12-22 11:27:14,126 INFO L116 LiptonReduction]: Number of co-enabled transitions 2940 [2020-12-22 11:27:16,546 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-22 11:27:17,651 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-22 11:27:17,818 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-22 11:27:18,925 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-22 11:27:19,031 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-22 11:27:19,426 WARN L197 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-12-22 11:27:19,601 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-22 11:27:20,107 WARN L197 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-12-22 11:27:20,293 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-22 11:27:20,297 INFO L131 LiptonReduction]: Checked pairs total: 5258 [2020-12-22 11:27:20,298 INFO L133 LiptonReduction]: Total number of compositions: 135 [2020-12-22 11:27:20,298 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 45 transitions, 210 flow [2020-12-22 11:27:21,900 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 18584 states. [2020-12-22 11:27:21,900 INFO L276 IsEmpty]: Start isEmpty. Operand 18584 states. [2020-12-22 11:27:21,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 11:27:21,900 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:27:21,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 11:27:21,901 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:27:21,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:27:21,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1408665, now seen corresponding path program 1 times [2020-12-22 11:27:21,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:27:21,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979525461] [2020-12-22 11:27:21,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:27:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:21,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:21,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979525461] [2020-12-22 11:27:21,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:27:21,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:27:21,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954448707] [2020-12-22 11:27:21,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:27:21,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:27:21,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:27:21,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:27:21,924 INFO L87 Difference]: Start difference. First operand 18584 states. Second operand 3 states. [2020-12-22 11:27:22,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:27:22,120 INFO L93 Difference]: Finished difference Result 17885 states and 92755 transitions. [2020-12-22 11:27:22,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:27:22,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 11:27:22,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:27:22,188 INFO L225 Difference]: With dead ends: 17885 [2020-12-22 11:27:22,188 INFO L226 Difference]: Without dead ends: 16791 [2020-12-22 11:27:22,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:27:22,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16791 states. [2020-12-22 11:27:23,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16791 to 16791. [2020-12-22 11:27:23,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16791 states. [2020-12-22 11:27:23,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16791 states to 16791 states and 86558 transitions. [2020-12-22 11:27:23,325 INFO L78 Accepts]: Start accepts. Automaton has 16791 states and 86558 transitions. Word has length 3 [2020-12-22 11:27:23,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:27:23,325 INFO L481 AbstractCegarLoop]: Abstraction has 16791 states and 86558 transitions. [2020-12-22 11:27:23,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:27:23,325 INFO L276 IsEmpty]: Start isEmpty. Operand 16791 states and 86558 transitions. [2020-12-22 11:27:23,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:27:23,325 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:27:23,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:27:23,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2020-12-22 11:27:23,326 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:27:23,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:27:23,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1428828959, now seen corresponding path program 1 times [2020-12-22 11:27:23,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:27:23,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573678239] [2020-12-22 11:27:23,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:27:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:23,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:23,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573678239] [2020-12-22 11:27:23,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:27:23,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:27:23,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371025259] [2020-12-22 11:27:23,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:27:23,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:27:23,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:27:23,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:27:23,375 INFO L87 Difference]: Start difference. First operand 16791 states and 86558 transitions. Second operand 7 states. [2020-12-22 11:27:23,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:27:23,865 INFO L93 Difference]: Finished difference Result 36645 states and 175611 transitions. [2020-12-22 11:27:23,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 11:27:23,866 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2020-12-22 11:27:23,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:27:24,036 INFO L225 Difference]: With dead ends: 36645 [2020-12-22 11:27:24,037 INFO L226 Difference]: Without dead ends: 36637 [2020-12-22 11:27:24,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:27:25,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36637 states. [2020-12-22 11:27:25,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36637 to 19868. [2020-12-22 11:27:25,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19868 states. [2020-12-22 11:27:25,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19868 states to 19868 states and 103363 transitions. [2020-12-22 11:27:25,992 INFO L78 Accepts]: Start accepts. Automaton has 19868 states and 103363 transitions. Word has length 9 [2020-12-22 11:27:25,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:27:25,992 INFO L481 AbstractCegarLoop]: Abstraction has 19868 states and 103363 transitions. [2020-12-22 11:27:25,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:27:25,992 INFO L276 IsEmpty]: Start isEmpty. Operand 19868 states and 103363 transitions. [2020-12-22 11:27:25,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:27:25,992 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:27:25,992 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:27:25,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2020-12-22 11:27:25,993 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:27:25,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:27:25,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1436873082, now seen corresponding path program 1 times [2020-12-22 11:27:25,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:27:25,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524192006] [2020-12-22 11:27:25,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:27:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:26,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:26,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524192006] [2020-12-22 11:27:26,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527695112] [2020-12-22 11:27:26,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:26,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:27:26,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:27:26,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 11:27:26,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:27:26,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-22 11:27:26,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737565884] [2020-12-22 11:27:26,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:27:26,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:27:26,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:27:26,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:27:26,261 INFO L87 Difference]: Start difference. First operand 19868 states and 103363 transitions. Second operand 5 states. [2020-12-22 11:27:26,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:27:26,873 INFO L93 Difference]: Finished difference Result 36296 states and 178836 transitions. [2020-12-22 11:27:26,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:27:26,873 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-22 11:27:26,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:27:26,985 INFO L225 Difference]: With dead ends: 36296 [2020-12-22 11:27:26,986 INFO L226 Difference]: Without dead ends: 36280 [2020-12-22 11:27:26,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-12-22 11:27:28,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36280 states. [2020-12-22 11:27:28,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36280 to 23806. [2020-12-22 11:27:28,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23806 states. [2020-12-22 11:27:28,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23806 states to 23806 states and 125455 transitions. [2020-12-22 11:27:28,795 INFO L78 Accepts]: Start accepts. Automaton has 23806 states and 125455 transitions. Word has length 13 [2020-12-22 11:27:28,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:27:28,795 INFO L481 AbstractCegarLoop]: Abstraction has 23806 states and 125455 transitions. [2020-12-22 11:27:28,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:27:28,795 INFO L276 IsEmpty]: Start isEmpty. Operand 23806 states and 125455 transitions. [2020-12-22 11:27:28,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:27:28,796 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:27:28,796 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:27:28,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:28,997 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:27:28,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:27:28,998 INFO L82 PathProgramCache]: Analyzing trace with hash -121904858, now seen corresponding path program 1 times [2020-12-22 11:27:28,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:27:28,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222353454] [2020-12-22 11:27:28,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:27:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:29,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:29,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222353454] [2020-12-22 11:27:29,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554114245] [2020-12-22 11:27:29,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:29,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-22 11:27:29,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:27:29,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:29,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:27:29,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2020-12-22 11:27:29,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649476579] [2020-12-22 11:27:29,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-22 11:27:29,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:27:29,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-22 11:27:29,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2020-12-22 11:27:29,378 INFO L87 Difference]: Start difference. First operand 23806 states and 125455 transitions. Second operand 18 states. [2020-12-22 11:27:30,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:27:30,992 INFO L93 Difference]: Finished difference Result 67485 states and 307415 transitions. [2020-12-22 11:27:30,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-22 11:27:30,993 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 15 [2020-12-22 11:27:30,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:27:31,207 INFO L225 Difference]: With dead ends: 67485 [2020-12-22 11:27:31,208 INFO L226 Difference]: Without dead ends: 67469 [2020-12-22 11:27:31,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=241, Invalid=751, Unknown=0, NotChecked=0, Total=992 [2020-12-22 11:27:32,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67469 states. [2020-12-22 11:27:33,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67469 to 23629. [2020-12-22 11:27:33,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23629 states. [2020-12-22 11:27:33,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23629 states to 23629 states and 124418 transitions. [2020-12-22 11:27:33,890 INFO L78 Accepts]: Start accepts. Automaton has 23629 states and 124418 transitions. Word has length 15 [2020-12-22 11:27:33,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:27:33,890 INFO L481 AbstractCegarLoop]: Abstraction has 23629 states and 124418 transitions. [2020-12-22 11:27:33,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-22 11:27:33,890 INFO L276 IsEmpty]: Start isEmpty. Operand 23629 states and 124418 transitions. [2020-12-22 11:27:33,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:27:33,890 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:27:33,891 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:27:34,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2020-12-22 11:27:34,092 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:27:34,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:27:34,092 INFO L82 PathProgramCache]: Analyzing trace with hash 2144442278, now seen corresponding path program 2 times [2020-12-22 11:27:34,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:27:34,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341449677] [2020-12-22 11:27:34,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:27:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:34,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:34,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341449677] [2020-12-22 11:27:34,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961193288] [2020-12-22 11:27:34,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:34,313 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:27:34,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:27:34,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 11:27:34,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:27:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 11:27:34,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:27:34,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 13 [2020-12-22 11:27:34,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330837245] [2020-12-22 11:27:34,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:27:34,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:27:34,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:27:34,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-12-22 11:27:34,441 INFO L87 Difference]: Start difference. First operand 23629 states and 124418 transitions. Second operand 7 states. [2020-12-22 11:27:35,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:27:35,559 INFO L93 Difference]: Finished difference Result 58078 states and 269185 transitions. [2020-12-22 11:27:35,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:27:35,560 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-12-22 11:27:35,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:27:35,786 INFO L225 Difference]: With dead ends: 58078 [2020-12-22 11:27:35,786 INFO L226 Difference]: Without dead ends: 58061 [2020-12-22 11:27:35,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2020-12-22 11:27:36,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58061 states. [2020-12-22 11:27:37,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58061 to 23109. [2020-12-22 11:27:37,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23109 states. [2020-12-22 11:27:37,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23109 states to 23109 states and 121651 transitions. [2020-12-22 11:27:37,877 INFO L78 Accepts]: Start accepts. Automaton has 23109 states and 121651 transitions. Word has length 15 [2020-12-22 11:27:37,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:27:37,877 INFO L481 AbstractCegarLoop]: Abstraction has 23109 states and 121651 transitions. [2020-12-22 11:27:37,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:27:37,877 INFO L276 IsEmpty]: Start isEmpty. Operand 23109 states and 121651 transitions. [2020-12-22 11:27:37,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:27:37,878 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:27:37,878 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:27:38,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:38,079 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:27:38,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:27:38,079 INFO L82 PathProgramCache]: Analyzing trace with hash 631312444, now seen corresponding path program 1 times [2020-12-22 11:27:38,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:27:38,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242179210] [2020-12-22 11:27:38,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:27:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:38,144 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 11:27:38,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242179210] [2020-12-22 11:27:38,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782086240] [2020-12-22 11:27:38,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:38,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 11:27:38,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:27:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:27:38,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:27:38,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-22 11:27:38,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383572485] [2020-12-22 11:27:38,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:27:38,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:27:38,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:27:38,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-12-22 11:27:38,331 INFO L87 Difference]: Start difference. First operand 23109 states and 121651 transitions. Second operand 5 states. [2020-12-22 11:27:39,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:27:39,031 INFO L93 Difference]: Finished difference Result 41885 states and 209629 transitions. [2020-12-22 11:27:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:27:39,032 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-22 11:27:39,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:27:39,166 INFO L225 Difference]: With dead ends: 41885 [2020-12-22 11:27:39,166 INFO L226 Difference]: Without dead ends: 41856 [2020-12-22 11:27:39,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-12-22 11:27:40,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41856 states. [2020-12-22 11:27:41,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41856 to 28237. [2020-12-22 11:27:41,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28237 states. [2020-12-22 11:27:41,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28237 states to 28237 states and 150261 transitions. [2020-12-22 11:27:41,193 INFO L78 Accepts]: Start accepts. Automaton has 28237 states and 150261 transitions. Word has length 17 [2020-12-22 11:27:41,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:27:41,193 INFO L481 AbstractCegarLoop]: Abstraction has 28237 states and 150261 transitions. [2020-12-22 11:27:41,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:27:41,193 INFO L276 IsEmpty]: Start isEmpty. Operand 28237 states and 150261 transitions. [2020-12-22 11:27:41,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 11:27:41,194 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:27:41,194 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:27:41,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:41,397 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:27:41,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:27:41,398 INFO L82 PathProgramCache]: Analyzing trace with hash -602434852, now seen corresponding path program 1 times [2020-12-22 11:27:41,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:27:41,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095648302] [2020-12-22 11:27:41,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:27:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:41,483 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:41,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095648302] [2020-12-22 11:27:41,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434985837] [2020-12-22 11:27:41,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:41,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-22 11:27:41,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:27:41,824 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:41,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:27:41,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2020-12-22 11:27:41,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716297369] [2020-12-22 11:27:41,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-22 11:27:41,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:27:41,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-22 11:27:41,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2020-12-22 11:27:41,826 INFO L87 Difference]: Start difference. First operand 28237 states and 150261 transitions. Second operand 20 states. [2020-12-22 11:27:42,272 WARN L197 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 12 [2020-12-22 11:27:44,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:27:44,558 INFO L93 Difference]: Finished difference Result 93341 states and 437217 transitions. [2020-12-22 11:27:44,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-22 11:27:44,559 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 19 [2020-12-22 11:27:44,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:27:44,901 INFO L225 Difference]: With dead ends: 93341 [2020-12-22 11:27:44,901 INFO L226 Difference]: Without dead ends: 93317 [2020-12-22 11:27:44,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=448, Invalid=1532, Unknown=0, NotChecked=0, Total=1980 [2020-12-22 11:27:46,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93317 states. [2020-12-22 11:27:47,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93317 to 29810. [2020-12-22 11:27:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29810 states. [2020-12-22 11:27:47,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29810 states to 29810 states and 159322 transitions. [2020-12-22 11:27:47,962 INFO L78 Accepts]: Start accepts. Automaton has 29810 states and 159322 transitions. Word has length 19 [2020-12-22 11:27:47,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:27:47,962 INFO L481 AbstractCegarLoop]: Abstraction has 29810 states and 159322 transitions. [2020-12-22 11:27:47,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-22 11:27:47,963 INFO L276 IsEmpty]: Start isEmpty. Operand 29810 states and 159322 transitions. [2020-12-22 11:27:47,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 11:27:47,963 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:27:47,963 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:27:48,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2020-12-22 11:27:48,164 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:27:48,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:27:48,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1111858202, now seen corresponding path program 1 times [2020-12-22 11:27:48,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:27:48,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130970888] [2020-12-22 11:27:48,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:27:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:48,269 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:48,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130970888] [2020-12-22 11:27:48,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212906544] [2020-12-22 11:27:48,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:48,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-22 11:27:48,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:27:48,594 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:48,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 11:27:48,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2020-12-22 11:27:48,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463118672] [2020-12-22 11:27:48,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-22 11:27:48,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:27:48,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-22 11:27:48,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2020-12-22 11:27:48,596 INFO L87 Difference]: Start difference. First operand 29810 states and 159322 transitions. Second operand 20 states. [2020-12-22 11:27:50,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:27:50,093 INFO L93 Difference]: Finished difference Result 71566 states and 340385 transitions. [2020-12-22 11:27:50,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 11:27:50,094 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 19 [2020-12-22 11:27:50,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:27:50,925 INFO L225 Difference]: With dead ends: 71566 [2020-12-22 11:27:50,926 INFO L226 Difference]: Without dead ends: 71541 [2020-12-22 11:27:50,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=248, Invalid=744, Unknown=0, NotChecked=0, Total=992 [2020-12-22 11:27:52,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71541 states. [2020-12-22 11:27:53,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71541 to 30333. [2020-12-22 11:27:53,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30333 states. [2020-12-22 11:27:53,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30333 states to 30333 states and 162102 transitions. [2020-12-22 11:27:53,382 INFO L78 Accepts]: Start accepts. Automaton has 30333 states and 162102 transitions. Word has length 19 [2020-12-22 11:27:53,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:27:53,382 INFO L481 AbstractCegarLoop]: Abstraction has 30333 states and 162102 transitions. [2020-12-22 11:27:53,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-22 11:27:53,382 INFO L276 IsEmpty]: Start isEmpty. Operand 30333 states and 162102 transitions. [2020-12-22 11:27:53,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 11:27:53,383 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:27:53,383 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:27:53,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,67 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:53,589 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:27:53,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:27:53,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1100874716, now seen corresponding path program 2 times [2020-12-22 11:27:53,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:27:53,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124349447] [2020-12-22 11:27:53,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:27:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:53,695 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:53,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124349447] [2020-12-22 11:27:53,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655842633] [2020-12-22 11:27:53,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:53,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:27:53,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:27:53,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-22 11:27:53,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:27:53,970 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:27:53,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:27:53,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2020-12-22 11:27:53,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818530726] [2020-12-22 11:27:53,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:27:53,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:27:53,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:27:53,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-12-22 11:27:53,971 INFO L87 Difference]: Start difference. First operand 30333 states and 162102 transitions. Second operand 7 states. [2020-12-22 11:27:55,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:27:55,136 INFO L93 Difference]: Finished difference Result 72872 states and 346972 transitions. [2020-12-22 11:27:55,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:27:55,137 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-22 11:27:55,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:27:55,959 INFO L225 Difference]: With dead ends: 72872 [2020-12-22 11:27:55,959 INFO L226 Difference]: Without dead ends: 72839 [2020-12-22 11:27:55,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2020-12-22 11:27:57,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72839 states. [2020-12-22 11:27:58,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72839 to 30817. [2020-12-22 11:27:58,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30817 states. [2020-12-22 11:27:58,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30817 states to 30817 states and 164781 transitions. [2020-12-22 11:27:58,465 INFO L78 Accepts]: Start accepts. Automaton has 30817 states and 164781 transitions. Word has length 19 [2020-12-22 11:27:58,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:27:58,465 INFO L481 AbstractCegarLoop]: Abstraction has 30817 states and 164781 transitions. [2020-12-22 11:27:58,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:27:58,466 INFO L276 IsEmpty]: Start isEmpty. Operand 30817 states and 164781 transitions. [2020-12-22 11:27:58,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 11:27:58,466 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:27:58,466 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:27:58,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:58,667 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:27:58,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:27:58,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1100906522, now seen corresponding path program 2 times [2020-12-22 11:27:58,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:27:58,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214836202] [2020-12-22 11:27:58,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:27:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:27:58,765 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:27:58,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214836202] [2020-12-22 11:27:58,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713503228] [2020-12-22 11:27:58,766 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 11:27:58,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 11:27:58,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 11:27:58,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-22 11:27:58,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 11:27:59,055 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 11:27:59,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 11:27:59,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2020-12-22 11:27:59,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777112644] [2020-12-22 11:27:59,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:27:59,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:27:59,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:27:59,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-12-22 11:27:59,057 INFO L87 Difference]: Start difference. First operand 30817 states and 164781 transitions. Second operand 7 states. [2020-12-22 11:27:59,500 WARN L197 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-22 11:28:00,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:28:00,283 INFO L93 Difference]: Finished difference Result 72235 states and 343632 transitions. [2020-12-22 11:28:00,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 11:28:00,284 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-22 11:28:00,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:28:01,035 INFO L225 Difference]: With dead ends: 72235 [2020-12-22 11:28:01,035 INFO L226 Difference]: Without dead ends: 72202 [2020-12-22 11:28:01,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2020-12-22 11:28:02,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72202 states.