/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-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread/stack_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 13:38:45,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 13:38:45,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 13:38:45,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 13:38:45,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 13:38:45,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 13:38:45,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 13:38:45,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 13:38:45,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 13:38:45,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 13:38:45,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 13:38:45,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 13:38:45,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 13:38:46,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 13:38:46,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 13:38:46,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 13:38:46,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 13:38:46,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 13:38:46,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 13:38:46,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 13:38:46,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 13:38:46,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 13:38:46,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 13:38:46,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 13:38:46,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-15 13:38:46,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-15 13:38:46,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-15 13:38:46,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-15 13:38:46,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-15 13:38:46,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-15 13:38:46,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 13:38:46,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 13:38:46,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 13:38:46,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 13:38:46,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 13:38:46,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 13:38:46,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 13:38:46,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 13:38:46,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 13:38:46,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 13:38:46,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 13:38:46,060 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-15 13:38:46,117 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 13:38:46,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 13:38:46,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 13:38:46,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 13:38:46,121 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 13:38:46,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 13:38:46,122 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 13:38:46,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 13:38:46,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 13:38:46,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 13:38:46,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 13:38:46,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 13:38:46,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 13:38:46,125 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 13:38:46,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 13:38:46,126 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 13:38:46,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 13:38:46,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 13:38:46,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 13:38:46,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 13:38:46,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 13:38:46,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 13:38:46,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 13:38:46,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-15 13:38:46,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 13:38:46,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 13:38:46,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 13:38:46,128 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-15 13:38:46,128 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-15 13:38:46,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 13:38:46,129 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-15 13:38:46,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 13:38:46,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 13:38:46,640 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 13:38:46,643 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 13:38:46,644 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 13:38:46,646 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longer-1.i [2020-09-15 13:38:46,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9715ab2c0/fc9672e1273241de8d90edd0277eeb0a/FLAG39e8220f1 [2020-09-15 13:38:47,541 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 13:38:47,542 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread/stack_longer-1.i [2020-09-15 13:38:47,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9715ab2c0/fc9672e1273241de8d90edd0277eeb0a/FLAG39e8220f1 [2020-09-15 13:38:47,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9715ab2c0/fc9672e1273241de8d90edd0277eeb0a [2020-09-15 13:38:47,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 13:38:47,724 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 13:38:47,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 13:38:47,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 13:38:47,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 13:38:47,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:38:47" (1/1) ... [2020-09-15 13:38:47,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cbc2bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:38:47, skipping insertion in model container [2020-09-15 13:38:47,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:38:47" (1/1) ... [2020-09-15 13:38:47,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 13:38:47,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 13:38:48,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 13:38:48,597 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 13:38:48,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 13:38:48,818 INFO L208 MainTranslator]: Completed translation [2020-09-15 13:38:48,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:38:48 WrapperNode [2020-09-15 13:38:48,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 13:38:48,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 13:38:48,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 13:38:48,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 13:38:48,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:38:48" (1/1) ... [2020-09-15 13:38:48,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:38:48" (1/1) ... [2020-09-15 13:38:48,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 13:38:48,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 13:38:48,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 13:38:48,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 13:38:48,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:38:48" (1/1) ... [2020-09-15 13:38:48,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:38:48" (1/1) ... [2020-09-15 13:38:48,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:38:48" (1/1) ... [2020-09-15 13:38:48,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:38:48" (1/1) ... [2020-09-15 13:38:48,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:38:48" (1/1) ... [2020-09-15 13:38:48,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:38:48" (1/1) ... [2020-09-15 13:38:48,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:38:48" (1/1) ... [2020-09-15 13:38:48,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 13:38:48,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 13:38:48,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 13:38:48,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 13:38:48,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:38:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-15 13:38:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-09-15 13:38:49,075 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-09-15 13:38:49,076 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-09-15 13:38:49,076 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-09-15 13:38:49,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 13:38:49,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 13:38:49,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-15 13:38:49,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 13:38:49,077 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-09-15 13:38:49,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-15 13:38:49,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 13:38:49,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 13:38:49,080 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 13:38:49,644 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 13:38:49,645 INFO L295 CfgBuilder]: Removed 26 assume(true) statements. [2020-09-15 13:38:49,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:38:49 BoogieIcfgContainer [2020-09-15 13:38:49,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 13:38:49,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 13:38:49,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 13:38:49,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 13:38:49,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 01:38:47" (1/3) ... [2020-09-15 13:38:49,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c12912a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:38:49, skipping insertion in model container [2020-09-15 13:38:49,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:38:48" (2/3) ... [2020-09-15 13:38:49,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c12912a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:38:49, skipping insertion in model container [2020-09-15 13:38:49,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:38:49" (3/3) ... [2020-09-15 13:38:49,662 INFO L109 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2020-09-15 13:38:49,676 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 13:38:49,676 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-15 13:38:49,689 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-15 13:38:49,690 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 13:38:49,746 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,747 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,747 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,747 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,748 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,748 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,748 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,748 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,748 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,748 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,749 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,749 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,749 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,749 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,749 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,750 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,750 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,750 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,750 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,750 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,751 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,751 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,751 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,751 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,752 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,752 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,752 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,752 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,752 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,753 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,753 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,753 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,753 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,753 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,753 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,754 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,754 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,754 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,754 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,755 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,755 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,755 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,755 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,756 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,756 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,756 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,756 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,756 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,757 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,757 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,757 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,757 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,758 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,758 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,758 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,758 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,759 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,759 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,759 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,759 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,760 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,760 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,760 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,760 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,761 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,761 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,761 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,761 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,762 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,763 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,763 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,763 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,763 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,764 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,764 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,764 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,764 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,764 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,765 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,765 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,765 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,766 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,766 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,766 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,766 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,767 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,767 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,767 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,767 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,767 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,768 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,768 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,768 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,768 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,768 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,769 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,769 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,769 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,769 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,770 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,770 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,770 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,770 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,771 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,771 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,771 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,771 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,772 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,772 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,772 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,772 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,773 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,773 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,773 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,773 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,773 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,774 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,774 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,774 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,774 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,774 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,775 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,775 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,775 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,775 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,776 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,776 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,776 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,776 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,776 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,776 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,777 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,777 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,782 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,782 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,782 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,782 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,783 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,783 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,783 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,783 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,783 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,784 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,784 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,784 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,784 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,785 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,785 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,785 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,785 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,785 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,785 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,786 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,786 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,786 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,786 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,793 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,793 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,794 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,794 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,794 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,794 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,795 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,795 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,795 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,795 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,795 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,796 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,796 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,796 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,796 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,796 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,797 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,797 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,797 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 13:38:49,831 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-09-15 13:38:49,858 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 13:38:49,858 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 13:38:49,859 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 13:38:49,859 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 13:38:49,859 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 13:38:49,859 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 13:38:49,859 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 13:38:49,859 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 13:38:49,882 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 145 transitions, 312 flow [2020-09-15 13:38:49,885 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-09-15 13:38:49,964 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-09-15 13:38:49,964 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-15 13:38:49,974 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 383 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-09-15 13:38:49,985 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-09-15 13:38:50,054 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-09-15 13:38:50,054 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-15 13:38:50,060 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 383 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-09-15 13:38:50,070 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 6532 [2020-09-15 13:38:50,072 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 13:38:52,546 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-09-15 13:38:52,685 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-09-15 13:38:53,569 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2020-09-15 13:38:53,846 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-15 13:38:53,887 INFO L206 etLargeBlockEncoding]: Checked pairs total: 8325 [2020-09-15 13:38:53,887 INFO L214 etLargeBlockEncoding]: Total number of compositions: 124 [2020-09-15 13:38:53,892 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 41 transitions, 104 flow [2020-09-15 13:38:53,924 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 360 states. [2020-09-15 13:38:53,927 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states. [2020-09-15 13:38:53,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-15 13:38:53,938 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:38:53,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-15 13:38:53,941 INFO L427 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:38:53,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:38:53,950 INFO L82 PathProgramCache]: Analyzing trace with hash 447198837, now seen corresponding path program 1 times [2020-09-15 13:38:53,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:38:53,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094597704] [2020-09-15 13:38:53,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:38:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:38:54,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:38:54,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094597704] [2020-09-15 13:38:54,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:38:54,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 13:38:54,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1719725315] [2020-09-15 13:38:54,280 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 13:38:54,284 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 13:38:54,304 INFO L274 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-09-15 13:38:54,304 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 13:38:54,307 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 13:38:54,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 13:38:54,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:38:54,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 13:38:54,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:38:54,331 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 3 states. [2020-09-15 13:38:54,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:38:54,407 INFO L93 Difference]: Finished difference Result 577 states and 1453 transitions. [2020-09-15 13:38:54,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 13:38:54,410 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-09-15 13:38:54,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:38:54,438 INFO L225 Difference]: With dead ends: 577 [2020-09-15 13:38:54,438 INFO L226 Difference]: Without dead ends: 555 [2020-09-15 13:38:54,440 INFO L675 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 [2020-09-15 13:38:54,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-09-15 13:38:54,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 515. [2020-09-15 13:38:54,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-09-15 13:38:54,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 1354 transitions. [2020-09-15 13:38:54,589 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 1354 transitions. Word has length 6 [2020-09-15 13:38:54,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:38:54,589 INFO L479 AbstractCegarLoop]: Abstraction has 515 states and 1354 transitions. [2020-09-15 13:38:54,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 13:38:54,590 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 1354 transitions. [2020-09-15 13:38:54,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-15 13:38:54,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:38:54,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 13:38:54,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 13:38:54,591 INFO L427 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:38:54,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:38:54,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1139410892, now seen corresponding path program 1 times [2020-09-15 13:38:54,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:38:54,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589183095] [2020-09-15 13:38:54,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:38:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:38:54,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:38:54,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589183095] [2020-09-15 13:38:54,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:38:54,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 13:38:54,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1643985110] [2020-09-15 13:38:54,756 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 13:38:54,757 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 13:38:54,758 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-15 13:38:54,758 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 13:38:54,758 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 13:38:54,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 13:38:54,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:38:54,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 13:38:54,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:38:54,761 INFO L87 Difference]: Start difference. First operand 515 states and 1354 transitions. Second operand 3 states. [2020-09-15 13:38:54,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:38:54,780 INFO L93 Difference]: Finished difference Result 620 states and 1596 transitions. [2020-09-15 13:38:54,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 13:38:54,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-15 13:38:54,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:38:54,786 INFO L225 Difference]: With dead ends: 620 [2020-09-15 13:38:54,786 INFO L226 Difference]: Without dead ends: 598 [2020-09-15 13:38:54,787 INFO L675 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 [2020-09-15 13:38:54,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-09-15 13:38:54,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 558. [2020-09-15 13:38:54,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-09-15 13:38:54,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 1476 transitions. [2020-09-15 13:38:54,820 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 1476 transitions. Word has length 9 [2020-09-15 13:38:54,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:38:54,822 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 1476 transitions. [2020-09-15 13:38:54,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 13:38:54,822 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 1476 transitions. [2020-09-15 13:38:54,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-15 13:38:54,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:38:54,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 13:38:54,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 13:38:54,824 INFO L427 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:38:54,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:38:54,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1261077674, now seen corresponding path program 1 times [2020-09-15 13:38:54,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:38:54,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433338386] [2020-09-15 13:38:54,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:38:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:38:54,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:38:54,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433338386] [2020-09-15 13:38:54,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:38:54,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 13:38:54,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1361590694] [2020-09-15 13:38:54,929 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 13:38:54,930 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 13:38:54,932 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-15 13:38:54,932 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 13:38:54,932 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 13:38:54,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 13:38:54,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:38:54,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 13:38:54,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:38:54,933 INFO L87 Difference]: Start difference. First operand 558 states and 1476 transitions. Second operand 3 states. [2020-09-15 13:38:54,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:38:54,951 INFO L93 Difference]: Finished difference Result 594 states and 1567 transitions. [2020-09-15 13:38:54,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 13:38:54,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-15 13:38:54,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:38:54,957 INFO L225 Difference]: With dead ends: 594 [2020-09-15 13:38:54,957 INFO L226 Difference]: Without dead ends: 594 [2020-09-15 13:38:54,958 INFO L675 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 [2020-09-15 13:38:54,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2020-09-15 13:38:54,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2020-09-15 13:38:54,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-09-15 13:38:54,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 1567 transitions. [2020-09-15 13:38:54,981 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 1567 transitions. Word has length 10 [2020-09-15 13:38:54,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:38:54,982 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 1567 transitions. [2020-09-15 13:38:54,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 13:38:54,982 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 1567 transitions. [2020-09-15 13:38:54,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-15 13:38:54,984 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:38:54,984 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 13:38:54,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 13:38:54,985 INFO L427 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:38:54,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:38:54,985 INFO L82 PathProgramCache]: Analyzing trace with hash -171507785, now seen corresponding path program 1 times [2020-09-15 13:38:54,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:38:54,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091088154] [2020-09-15 13:38:54,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:38:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:38:55,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:38:55,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091088154] [2020-09-15 13:38:55,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238804885] [2020-09-15 13:38:55,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-15 13:38:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:38:55,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-15 13:38:55,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-15 13:38:55,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:38:55,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-15 13:38:55,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-09-15 13:38:55,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1701562688] [2020-09-15 13:38:55,298 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 13:38:55,301 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 13:38:55,304 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-09-15 13:38:55,304 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 13:38:55,304 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 13:38:55,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-15 13:38:55,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:38:55,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-15 13:38:55,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-15 13:38:55,306 INFO L87 Difference]: Start difference. First operand 594 states and 1567 transitions. Second operand 7 states. [2020-09-15 13:38:55,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:38:55,467 INFO L93 Difference]: Finished difference Result 894 states and 2283 transitions. [2020-09-15 13:38:55,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-15 13:38:55,468 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-09-15 13:38:55,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:38:55,475 INFO L225 Difference]: With dead ends: 894 [2020-09-15 13:38:55,475 INFO L226 Difference]: Without dead ends: 894 [2020-09-15 13:38:55,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-15 13:38:55,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-09-15 13:38:55,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 728. [2020-09-15 13:38:55,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2020-09-15 13:38:55,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1913 transitions. [2020-09-15 13:38:55,507 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1913 transitions. Word has length 14 [2020-09-15 13:38:55,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:38:55,507 INFO L479 AbstractCegarLoop]: Abstraction has 728 states and 1913 transitions. [2020-09-15 13:38:55,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-15 13:38:55,508 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1913 transitions. [2020-09-15 13:38:55,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-15 13:38:55,515 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:38:55,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 13:38:55,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-15 13:38:55,733 INFO L427 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:38:55,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:38:55,734 INFO L82 PathProgramCache]: Analyzing trace with hash -284826607, now seen corresponding path program 1 times [2020-09-15 13:38:55,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:38:55,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601514104] [2020-09-15 13:38:55,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:38:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:38:55,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:38:55,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601514104] [2020-09-15 13:38:55,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:38:55,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 13:38:55,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [882930699] [2020-09-15 13:38:55,827 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 13:38:55,830 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 13:38:55,838 INFO L274 McrAutomatonBuilder]: Finished intersection with 44 states and 69 transitions. [2020-09-15 13:38:55,838 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 13:38:56,003 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 13:38:56,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 13:38:56,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:38:56,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 13:38:56,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:38:56,004 INFO L87 Difference]: Start difference. First operand 728 states and 1913 transitions. Second operand 3 states. [2020-09-15 13:38:56,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:38:56,027 INFO L93 Difference]: Finished difference Result 375 states and 842 transitions. [2020-09-15 13:38:56,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 13:38:56,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-09-15 13:38:56,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:38:56,031 INFO L225 Difference]: With dead ends: 375 [2020-09-15 13:38:56,031 INFO L226 Difference]: Without dead ends: 375 [2020-09-15 13:38:56,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 6 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 13:38:56,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2020-09-15 13:38:56,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 355. [2020-09-15 13:38:56,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-15 13:38:56,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 792 transitions. [2020-09-15 13:38:56,045 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 792 transitions. Word has length 17 [2020-09-15 13:38:56,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:38:56,045 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 792 transitions. [2020-09-15 13:38:56,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 13:38:56,045 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 792 transitions. [2020-09-15 13:38:56,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-15 13:38:56,046 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:38:56,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 13:38:56,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 13:38:56,047 INFO L427 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:38:56,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:38:56,047 INFO L82 PathProgramCache]: Analyzing trace with hash 473969269, now seen corresponding path program 1 times [2020-09-15 13:38:56,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:38:56,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173819127] [2020-09-15 13:38:56,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:38:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:38:56,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:38:56,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173819127] [2020-09-15 13:38:56,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:38:56,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-15 13:38:56,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [709271093] [2020-09-15 13:38:56,150 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 13:38:56,153 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 13:38:56,162 INFO L274 McrAutomatonBuilder]: Finished intersection with 41 states and 62 transitions. [2020-09-15 13:38:56,162 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 13:38:56,272 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [9488#(<= 0 |t1Thread1of1ForFork0_inc_top_#t~post30|), 9489#(<= 0 ~top~0)] [2020-09-15 13:38:56,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-15 13:38:56,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 13:38:56,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-15 13:38:56,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-15 13:38:56,273 INFO L87 Difference]: Start difference. First operand 355 states and 792 transitions. Second operand 7 states. [2020-09-15 13:38:56,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 13:38:56,358 INFO L93 Difference]: Finished difference Result 458 states and 1008 transitions. [2020-09-15 13:38:56,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-15 13:38:56,359 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-09-15 13:38:56,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 13:38:56,362 INFO L225 Difference]: With dead ends: 458 [2020-09-15 13:38:56,363 INFO L226 Difference]: Without dead ends: 458 [2020-09-15 13:38:56,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-15 13:38:56,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-09-15 13:38:56,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 397. [2020-09-15 13:38:56,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-09-15 13:38:56,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 896 transitions. [2020-09-15 13:38:56,377 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 896 transitions. Word has length 18 [2020-09-15 13:38:56,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 13:38:56,378 INFO L479 AbstractCegarLoop]: Abstraction has 397 states and 896 transitions. [2020-09-15 13:38:56,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-15 13:38:56,378 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 896 transitions. [2020-09-15 13:38:56,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-15 13:38:56,379 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 13:38:56,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 13:38:56,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-15 13:38:56,380 INFO L427 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 13:38:56,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 13:38:56,380 INFO L82 PathProgramCache]: Analyzing trace with hash -2059233600, now seen corresponding path program 1 times [2020-09-15 13:38:56,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 13:38:56,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029395922] [2020-09-15 13:38:56,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 13:38:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 13:38:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 13:38:57,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029395922] [2020-09-15 13:38:57,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 13:38:57,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-15 13:38:57,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1082651444] [2020-09-15 13:38:57,061 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 13:38:57,068 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 13:38:57,077 INFO L274 McrAutomatonBuilder]: Finished intersection with 45 states and 66 transitions. [2020-09-15 13:38:57,078 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 13:38:57,122 INFO L603 QuantifierPusher]: Distributing 5 disjuncts over 3 conjuncts [2020-09-15 13:38:57,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-15 13:38:57,199 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 48887 column 167: unknown constant t1Thread1of1ForFork0_push_~stack.offset at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1454) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:221) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:145) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript$DiffTransformer.checkOrAddAxiom(DiffWrapperScript.java:161) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript$DiffTransformer.convertApplicationTerm(DiffWrapperScript.java:171) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:339) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:109) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.assertTerm(ManagedScript.java:133) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:829) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.mcr.McrAutomatonBuilder.buildInterpolantAutomaton(McrAutomatonBuilder.java:378) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpAbStrategyModuleMcr.buildInterpolantAutomaton(IpAbStrategyModuleMcr.java:50) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:352) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-09-15 13:38:57,205 INFO L168 Benchmark]: Toolchain (without parser) took 9484.46 ms. Allocated memory was 141.6 MB in the beginning and 313.0 MB in the end (delta: 171.4 MB). Free memory was 103.3 MB in the beginning and 245.8 MB in the end (delta: -142.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2020-09-15 13:38:57,206 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 13:38:57,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1094.88 ms. Allocated memory was 141.6 MB in the beginning and 206.0 MB in the end (delta: 64.5 MB). Free memory was 102.6 MB in the beginning and 137.7 MB in the end (delta: -35.1 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-09-15 13:38:57,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.82 ms. Allocated memory is still 206.0 MB. Free memory was 137.7 MB in the beginning and 135.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-15 13:38:57,208 INFO L168 Benchmark]: Boogie Preprocessor took 47.21 ms. Allocated memory is still 206.0 MB. Free memory was 135.1 MB in the beginning and 133.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-15 13:38:57,209 INFO L168 Benchmark]: RCFGBuilder took 675.70 ms. Allocated memory is still 206.0 MB. Free memory was 133.1 MB in the beginning and 99.8 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-09-15 13:38:57,210 INFO L168 Benchmark]: TraceAbstraction took 7550.44 ms. Allocated memory was 206.0 MB in the beginning and 313.0 MB in the end (delta: 107.0 MB). Free memory was 99.1 MB in the beginning and 245.8 MB in the end (delta: -146.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 13:38:57,214 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1094.88 ms. Allocated memory was 141.6 MB in the beginning and 206.0 MB in the end (delta: 64.5 MB). Free memory was 102.6 MB in the beginning and 137.7 MB in the end (delta: -35.1 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 105.82 ms. Allocated memory is still 206.0 MB. Free memory was 137.7 MB in the beginning and 135.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.21 ms. Allocated memory is still 206.0 MB. Free memory was 135.1 MB in the beginning and 133.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 675.70 ms. Allocated memory is still 206.0 MB. Free memory was 133.1 MB in the beginning and 99.8 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7550.44 ms. Allocated memory was 206.0 MB in the beginning and 313.0 MB in the end (delta: 107.0 MB). Free memory was 99.1 MB in the beginning and 245.8 MB in the end (delta: -146.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 4.0s, 140 ProgramPointsBefore, 41 ProgramPointsAfterwards, 145 TransitionsBefore, 41 TransitionsAfterwards, 6532 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 5 ChoiceCompositions, 3614 VarBasedMoverChecksPositive, 53 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 8325 CheckedPairsTotal, 124 TotalNumberOfCompositions - ExceptionOrErrorResult: SMTLIBException: line 48887 column 167: unknown constant t1Thread1of1ForFork0_push_~stack.offset de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 48887 column 167: unknown constant t1Thread1of1ForFork0_push_~stack.offset: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1454) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...