/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:31:31,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:31:31,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:31:31,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:31:31,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:31:31,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:31:31,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:31:31,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:31:31,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:31:31,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:31:31,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:31:31,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:31:31,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:31:31,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:31:31,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:31:31,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:31:31,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:31:31,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:31:31,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:31:31,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:31:31,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:31:31,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:31:31,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:31:31,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:31:31,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 23:31:31,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 23:31:31,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 23:31:31,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 23:31:31,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 23:31:31,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 23:31:31,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:31:31,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:31:31,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:31:31,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:31:31,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:31:31,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:31:31,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:31:31,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:31:31,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:31:31,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:31:31,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:31:31,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 23:31:31,744 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:31:31,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:31:31,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:31:31,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:31:31,746 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:31:31,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:31:31,746 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:31:31,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:31:31,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:31:31,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:31:31,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:31:31,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:31:31,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:31:31,748 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:31:31,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:31:31,748 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:31:31,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:31:31,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:31:31,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:31:31,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:31:31,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:31:31,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:31:31,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:31:31,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:31:31,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:31:31,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:31:31,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:31:31,750 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:31:31,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:31:32,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:31:32,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:31:32,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:31:32,042 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:31:32,043 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:31:32,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2020-10-21 23:31:32,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d5f9238/e5cbd5099ac241e2b5fc9d980fd7cf7d/FLAGfa733d8b1 [2020-10-21 23:31:32,643 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:31:32,644 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2020-10-21 23:31:32,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d5f9238/e5cbd5099ac241e2b5fc9d980fd7cf7d/FLAGfa733d8b1 [2020-10-21 23:31:32,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d5f9238/e5cbd5099ac241e2b5fc9d980fd7cf7d [2020-10-21 23:31:32,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:31:32,919 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:31:32,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:31:32,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:31:32,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:31:32,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:31:32" (1/1) ... [2020-10-21 23:31:32,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@260e495e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:31:32, skipping insertion in model container [2020-10-21 23:31:32,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:31:32" (1/1) ... [2020-10-21 23:31:32,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:31:33,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:31:33,554 WARN L1500 CHandler]: Possible shadowing of function new [2020-10-21 23:31:33,555 WARN L1500 CHandler]: Possible shadowing of function new [2020-10-21 23:31:33,555 WARN L1500 CHandler]: Possible shadowing of function new [2020-10-21 23:31:33,556 WARN L1500 CHandler]: Possible shadowing of function new [2020-10-21 23:31:33,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:31:33,604 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:31:33,653 WARN L1500 CHandler]: Possible shadowing of function new [2020-10-21 23:31:33,653 WARN L1500 CHandler]: Possible shadowing of function new [2020-10-21 23:31:33,654 WARN L1500 CHandler]: Possible shadowing of function new [2020-10-21 23:31:33,654 WARN L1500 CHandler]: Possible shadowing of function new [2020-10-21 23:31:33,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:31:33,821 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:31:33,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:31:33 WrapperNode [2020-10-21 23:31:33,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:31:33,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:31:33,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:31:33,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:31:33,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:31:33" (1/1) ... [2020-10-21 23:31:33,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:31:33" (1/1) ... [2020-10-21 23:31:33,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:31:33,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:31:33,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:31:33,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:31:33,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:31:33" (1/1) ... [2020-10-21 23:31:33,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:31:33" (1/1) ... [2020-10-21 23:31:33,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:31:33" (1/1) ... [2020-10-21 23:31:33,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:31:33" (1/1) ... [2020-10-21 23:31:33,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:31:33" (1/1) ... [2020-10-21 23:31:33,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:31:33" (1/1) ... [2020-10-21 23:31:33,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:31:33" (1/1) ... [2020-10-21 23:31:34,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:31:34,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:31:34,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:31:34,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:31:34,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:31:33" (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 [2020-10-21 23:31:34,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:31:34,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-21 23:31:34,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:31:34,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 23:31:34,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:31:34,077 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 23:31:34,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-21 23:31:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-21 23:31:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-10-21 23:31:34,078 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-10-21 23:31:34,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:31:34,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:31:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:31:34,081 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:31:34,806 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:31:34,806 INFO L298 CfgBuilder]: Removed 34 assume(true) statements. [2020-10-21 23:31:34,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:31:34 BoogieIcfgContainer [2020-10-21 23:31:34,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:31:34,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:31:34,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:31:34,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:31:34,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:31:32" (1/3) ... [2020-10-21 23:31:34,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ae1812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:31:34, skipping insertion in model container [2020-10-21 23:31:34,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:31:33" (2/3) ... [2020-10-21 23:31:34,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ae1812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:31:34, skipping insertion in model container [2020-10-21 23:31:34,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:31:34" (3/3) ... [2020-10-21 23:31:34,818 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2020-10-21 23:31:34,830 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:31:34,830 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:31:34,839 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 23:31:34,840 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:31:34,873 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,874 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,874 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,874 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,875 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,875 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,875 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,875 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,876 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,876 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,876 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,876 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,877 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,877 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,877 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,877 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,878 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,878 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,878 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,878 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~q~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,878 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~q~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,879 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,879 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,879 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,880 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,880 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,880 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,880 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,881 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,881 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,881 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,881 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,881 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,882 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,882 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,882 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,882 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,882 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,883 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,883 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,883 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,883 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,883 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,884 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,884 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,884 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,884 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,884 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,885 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,885 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,885 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,885 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,885 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,886 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,886 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,886 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,887 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,888 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~q~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,888 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~q~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,890 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~q~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,890 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~q~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,890 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,890 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,890 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,891 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,891 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,891 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,891 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,892 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,892 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,892 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,892 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,892 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,893 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,893 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,893 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,893 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,893 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,893 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,894 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,894 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,894 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,894 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,895 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,895 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,895 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,895 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,896 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,896 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,896 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,896 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,896 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,897 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,897 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,897 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,897 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,897 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,898 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,898 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,898 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,899 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,907 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,907 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,907 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,907 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,907 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,908 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~q~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,908 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,908 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,908 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,908 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,908 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,909 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem19.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,909 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,912 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~q~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,912 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,912 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem9.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,913 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,913 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,915 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,915 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,915 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,915 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,915 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,916 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~pos~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:31:34,924 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-21 23:31:34,939 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-21 23:31:34,962 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:31:34,962 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:31:34,962 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:31:34,962 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:31:34,963 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:31:34,963 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:31:34,963 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:31:34,963 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:31:34,980 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:31:34,981 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 180 transitions, 368 flow [2020-10-21 23:31:34,984 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 180 transitions, 368 flow [2020-10-21 23:31:34,986 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 158 places, 180 transitions, 368 flow [2020-10-21 23:31:35,060 INFO L129 PetriNetUnfolder]: 27/194 cut-off events. [2020-10-21 23:31:35,062 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2020-10-21 23:31:35,072 INFO L80 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 194 events. 27/194 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 505 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 107. Up to 4 conditions per place. [2020-10-21 23:31:35,079 INFO L116 LiptonReduction]: Number of co-enabled transitions 3382 [2020-10-21 23:31:35,449 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 23:31:35,469 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:31:35,471 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 23:31:35,471 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:97, output treesize:98 [2020-10-21 23:31:35,569 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 23:31:35,581 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:31:35,582 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 23:31:35,583 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:55 [2020-10-21 23:31:36,128 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 23:31:36,141 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:31:36,142 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 23:31:36,143 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:55 [2020-10-21 23:31:36,955 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 23:31:36,979 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:31:36,980 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-21 23:31:36,981 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:127, output treesize:115 [2020-10-21 23:31:37,583 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 23:31:37,644 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:31:37,645 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-10-21 23:31:37,645 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:215, output treesize:239 [2020-10-21 23:31:38,613 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-21 23:31:38,872 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-21 23:31:39,091 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-21 23:31:39,705 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2020-10-21 23:31:39,864 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-21 23:31:41,218 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 116 [2020-10-21 23:31:41,249 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 23:31:42,274 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 106 [2020-10-21 23:31:42,274 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:31:42,275 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2020-10-21 23:31:42,276 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:545, output treesize:627 [2020-10-21 23:31:43,220 WARN L193 SmtUtils]: Spent 943.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-21 23:31:44,216 WARN L193 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-21 23:31:45,244 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 108 [2020-10-21 23:31:51,806 WARN L193 SmtUtils]: Spent 6.55 s on a formula simplification that was a NOOP. DAG size: 163 [2020-10-21 23:31:51,853 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 23:31:56,272 WARN L193 SmtUtils]: Spent 4.42 s on a formula simplification that was a NOOP. DAG size: 158 [2020-10-21 23:31:56,273 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:31:56,310 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-21 23:32:03,352 WARN L193 SmtUtils]: Spent 7.04 s on a formula simplification that was a NOOP. DAG size: 155 [2020-10-21 23:32:03,353 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 23:32:03,361 INFO L545 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2020-10-21 23:32:03,362 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:845, output treesize:1103 [2020-10-21 23:32:10,580 WARN L193 SmtUtils]: Spent 7.22 s on a formula simplification that was a NOOP. DAG size: 155 [2020-10-21 23:32:10,593 INFO L131 LiptonReduction]: Checked pairs total: 3632 [2020-10-21 23:32:10,593 INFO L133 LiptonReduction]: Total number of compositions: 169 [2020-10-21 23:32:10,616 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 39 transitions, 86 flow [2020-10-21 23:32:10,639 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 107 states. [2020-10-21 23:32:10,641 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-10-21 23:32:10,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-21 23:32:10,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:32:10,648 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-10-21 23:32:10,648 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:32:10,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:32:10,654 INFO L82 PathProgramCache]: Analyzing trace with hash 480009436, now seen corresponding path program 1 times [2020-10-21 23:32:10,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:32:10,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249785029] [2020-10-21 23:32:10,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:32:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:32:10,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 23:32:10,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249785029] [2020-10-21 23:32:10,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:32:10,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:32:10,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741356386] [2020-10-21 23:32:10,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:32:10,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:32:10,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:32:10,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:32:10,875 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 3 states. [2020-10-21 23:32:10,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:32:10,993 INFO L93 Difference]: Finished difference Result 109 states and 211 transitions. [2020-10-21 23:32:10,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:32:10,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-21 23:32:10,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:32:11,008 INFO L225 Difference]: With dead ends: 109 [2020-10-21 23:32:11,009 INFO L226 Difference]: Without dead ends: 102 [2020-10-21 23:32:11,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:32:11,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-21 23:32:11,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2020-10-21 23:32:11,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-21 23:32:11,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 198 transitions. [2020-10-21 23:32:11,055 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 198 transitions. Word has length 7 [2020-10-21 23:32:11,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:32:11,056 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 198 transitions. [2020-10-21 23:32:11,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:32:11,056 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 198 transitions. [2020-10-21 23:32:11,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 23:32:11,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:32:11,057 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:32:11,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:32:11,057 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:32:11,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:32:11,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1774988171, now seen corresponding path program 1 times [2020-10-21 23:32:11,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:32:11,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891996702] [2020-10-21 23:32:11,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:32:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:32:11,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 23:32:11,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891996702] [2020-10-21 23:32:11,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:32:11,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:32:11,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072639344] [2020-10-21 23:32:11,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:32:11,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:32:11,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:32:11,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:32:11,146 INFO L87 Difference]: Start difference. First operand 101 states and 198 transitions. Second operand 3 states. [2020-10-21 23:32:11,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:32:11,214 INFO L93 Difference]: Finished difference Result 102 states and 199 transitions. [2020-10-21 23:32:11,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:32:11,215 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-21 23:32:11,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:32:11,216 INFO L225 Difference]: With dead ends: 102 [2020-10-21 23:32:11,216 INFO L226 Difference]: Without dead ends: 102 [2020-10-21 23:32:11,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:32:11,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-21 23:32:11,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-10-21 23:32:11,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-21 23:32:11,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 199 transitions. [2020-10-21 23:32:11,231 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 199 transitions. Word has length 9 [2020-10-21 23:32:11,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:32:11,232 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 199 transitions. [2020-10-21 23:32:11,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:32:11,232 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 199 transitions. [2020-10-21 23:32:11,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 23:32:11,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:32:11,233 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:32:11,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:32:11,233 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:32:11,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:32:11,234 INFO L82 PathProgramCache]: Analyzing trace with hash 708648422, now seen corresponding path program 1 times [2020-10-21 23:32:11,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:32:11,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813934439] [2020-10-21 23:32:11,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:32:11,260 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-21 23:32:11,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [341388862] [2020-10-21 23:32:11,261 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 [2020-10-21 23:32:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:32:11,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 23:32:11,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:32:11,415 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 23:32:11,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813934439] [2020-10-21 23:32:11,416 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-21 23:32:11,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341388862] [2020-10-21 23:32:11,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-21 23:32:11,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-10-21 23:32:11,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737233311] [2020-10-21 23:32:11,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:32:11,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:32:11,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:32:11,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:32:11,419 INFO L87 Difference]: Start difference. First operand 102 states and 199 transitions. Second operand 4 states. [2020-10-21 23:32:11,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:32:11,579 INFO L93 Difference]: Finished difference Result 103 states and 200 transitions. [2020-10-21 23:32:11,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:32:11,580 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-21 23:32:11,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:32:11,582 INFO L225 Difference]: With dead ends: 103 [2020-10-21 23:32:11,582 INFO L226 Difference]: Without dead ends: 103 [2020-10-21 23:32:11,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:32:11,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-21 23:32:11,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-10-21 23:32:11,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-21 23:32:11,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 200 transitions. [2020-10-21 23:32:11,594 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 200 transitions. Word has length 10 [2020-10-21 23:32:11,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:32:11,594 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 200 transitions. [2020-10-21 23:32:11,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:32:11,594 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 200 transitions. [2020-10-21 23:32:11,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 23:32:11,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:32:11,595 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:32:11,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-21 23:32:11,809 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:32:11,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:32:11,810 INFO L82 PathProgramCache]: Analyzing trace with hash 391971477, now seen corresponding path program 2 times [2020-10-21 23:32:11,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:32:11,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246007306] [2020-10-21 23:32:11,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:32:11,831 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-21 23:32:11,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639210364] [2020-10-21 23:32:11,832 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 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 [2020-10-21 23:32:11,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-21 23:32:11,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:32:11,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-21 23:32:11,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:32:11,969 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 23:32:11,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246007306] [2020-10-21 23:32:11,969 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-21 23:32:11,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639210364] [2020-10-21 23:32:11,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-21 23:32:11,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-21 23:32:11,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754172] [2020-10-21 23:32:11,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:32:11,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:32:11,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:32:11,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:32:11,972 INFO L87 Difference]: Start difference. First operand 103 states and 200 transitions. Second operand 5 states. [2020-10-21 23:32:12,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:32:12,136 INFO L93 Difference]: Finished difference Result 104 states and 201 transitions. [2020-10-21 23:32:12,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:32:12,139 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-21 23:32:12,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:32:12,140 INFO L225 Difference]: With dead ends: 104 [2020-10-21 23:32:12,140 INFO L226 Difference]: Without dead ends: 104 [2020-10-21 23:32:12,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:32:12,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-21 23:32:12,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-21 23:32:12,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-21 23:32:12,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 201 transitions. [2020-10-21 23:32:12,151 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 201 transitions. Word has length 11 [2020-10-21 23:32:12,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:32:12,151 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 201 transitions. [2020-10-21 23:32:12,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:32:12,151 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 201 transitions. [2020-10-21 23:32:12,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 23:32:12,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:32:12,152 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:32:12,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:32:12,366 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:32:12,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:32:12,367 INFO L82 PathProgramCache]: Analyzing trace with hash -835079226, now seen corresponding path program 3 times [2020-10-21 23:32:12,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:32:12,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321928589] [2020-10-21 23:32:12,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:32:12,385 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-21 23:32:12,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [834328297] [2020-10-21 23:32:12,386 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 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 [2020-10-21 23:32:12,466 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-21 23:32:12,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:32:12,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 23:32:12,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:32:12,486 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-21 23:32:12,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321928589] [2020-10-21 23:32:12,487 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-21 23:32:12,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834328297] [2020-10-21 23:32:12,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-21 23:32:12,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-10-21 23:32:12,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693701608] [2020-10-21 23:32:12,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:32:12,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:32:12,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:32:12,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:32:12,489 INFO L87 Difference]: Start difference. First operand 104 states and 201 transitions. Second operand 4 states. [2020-10-21 23:32:12,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:32:12,664 INFO L93 Difference]: Finished difference Result 113 states and 212 transitions. [2020-10-21 23:32:12,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:32:12,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 23:32:12,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:32:12,672 INFO L225 Difference]: With dead ends: 113 [2020-10-21 23:32:12,672 INFO L226 Difference]: Without dead ends: 113 [2020-10-21 23:32:12,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:32:12,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-21 23:32:12,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 109. [2020-10-21 23:32:12,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-21 23:32:12,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 207 transitions. [2020-10-21 23:32:12,681 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 207 transitions. Word has length 12 [2020-10-21 23:32:12,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:32:12,682 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 207 transitions. [2020-10-21 23:32:12,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:32:12,682 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 207 transitions. [2020-10-21 23:32:12,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 23:32:12,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:32:12,683 INFO L422 BasicCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-21 23:32:12,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:32:12,896 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:32:12,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:32:12,897 INFO L82 PathProgramCache]: Analyzing trace with hash -422568164, now seen corresponding path program 4 times [2020-10-21 23:32:12,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:32:12,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039063798] [2020-10-21 23:32:12,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:32:12,918 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-21 23:32:12,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1150577362] [2020-10-21 23:32:12,918 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 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 [2020-10-21 23:32:13,055 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-21 23:32:13,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 23:32:13,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-21 23:32:13,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 23:32:13,096 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-21 23:32:13,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039063798] [2020-10-21 23:32:13,096 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-21 23:32:13,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150577362] [2020-10-21 23:32:13,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-21 23:32:13,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-21 23:32:13,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49425115] [2020-10-21 23:32:13,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 23:32:13,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:32:13,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 23:32:13,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:32:13,098 INFO L87 Difference]: Start difference. First operand 109 states and 207 transitions. Second operand 6 states. [2020-10-21 23:32:13,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:32:13,263 INFO L93 Difference]: Finished difference Result 111 states and 209 transitions. [2020-10-21 23:32:13,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 23:32:13,263 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-21 23:32:13,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:32:13,264 INFO L225 Difference]: With dead ends: 111 [2020-10-21 23:32:13,265 INFO L226 Difference]: Without dead ends: 111 [2020-10-21 23:32:13,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:32:13,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-21 23:32:13,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-10-21 23:32:13,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-21 23:32:13,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 209 transitions. [2020-10-21 23:32:13,274 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 209 transitions. Word has length 17 [2020-10-21 23:32:13,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:32:13,274 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 209 transitions. [2020-10-21 23:32:13,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 23:32:13,274 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 209 transitions. [2020-10-21 23:32:13,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-21 23:32:13,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:32:13,275 INFO L422 BasicCegarLoop]: trace histogram [8, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-21 23:32:13,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 23:32:13,483 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:32:13,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:32:13,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1729237554, now seen corresponding path program 5 times [2020-10-21 23:32:13,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:32:13,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028581752] [2020-10-21 23:32:13,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:32:13,505 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-21 23:32:13,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774078395] [2020-10-21 23:32:13,506 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 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 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown