/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-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:22:59,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:22:59,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:22:59,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:22:59,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:22:59,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:22:59,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:22:59,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:22:59,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:22:59,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:22:59,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:22:59,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:22:59,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:22:59,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:22:59,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:22:59,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:22:59,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:22:59,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:22:59,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:22:59,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:22:59,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:22:59,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:22:59,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:22:59,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:22:59,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:22:59,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:22:59,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:22:59,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:22:59,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:22:59,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:22:59,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:22:59,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:22:59,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:22:59,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:22:59,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:22:59,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:22:59,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:22:59,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:22:59,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:22:59,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:22:59,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:22:59,106 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:22:59,154 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:22:59,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:22:59,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:22:59,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:22:59,157 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:22:59,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:22:59,158 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:22:59,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:22:59,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:22:59,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:22:59,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:22:59,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:22:59,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:22:59,160 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:22:59,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:22:59,160 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:22:59,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:22:59,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:22:59,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:22:59,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:22:59,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:22:59,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:22:59,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:22:59,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:22:59,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:22:59,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:22:59,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:22:59,163 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:22:59,163 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:22:59,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:22:59,164 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:22:59,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:22:59,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:22:59,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:22:59,486 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:22:59,486 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:22:59,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i [2020-10-22 02:22:59,554 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/544d58166/a655fde9e4e7460787d5345616d62618/FLAGa97a89612 [2020-10-22 02:23:00,082 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:23:00,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i [2020-10-22 02:23:00,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/544d58166/a655fde9e4e7460787d5345616d62618/FLAGa97a89612 [2020-10-22 02:23:00,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/544d58166/a655fde9e4e7460787d5345616d62618 [2020-10-22 02:23:00,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:23:00,422 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:23:00,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:23:00,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:23:00,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:23:00,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:23:00" (1/1) ... [2020-10-22 02:23:00,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9d1e96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:00, skipping insertion in model container [2020-10-22 02:23:00,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:23:00" (1/1) ... [2020-10-22 02:23:00,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:23:00,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:23:01,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:23:01,013 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:23:01,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:23:01,185 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:23:01,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:01 WrapperNode [2020-10-22 02:23:01,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:23:01,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:23:01,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:23:01,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:23:01,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:01" (1/1) ... [2020-10-22 02:23:01,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:01" (1/1) ... [2020-10-22 02:23:01,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:23:01,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:23:01,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:23:01,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:23:01,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:01" (1/1) ... [2020-10-22 02:23:01,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:01" (1/1) ... [2020-10-22 02:23:01,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:01" (1/1) ... [2020-10-22 02:23:01,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:01" (1/1) ... [2020-10-22 02:23:01,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:01" (1/1) ... [2020-10-22 02:23:01,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:01" (1/1) ... [2020-10-22 02:23:01,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:01" (1/1) ... [2020-10-22 02:23:01,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:23:01,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:23:01,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:23:01,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:23:01,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:23:01,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:23:01,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:23:01,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:23:01,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:23:01,347 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:23:01,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:23:01,348 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:23:01,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:23:01,348 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:23:01,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:23:01,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:23:01,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:23:01,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:23:01,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:23:01,351 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:23:01,778 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:23:01,779 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:23:01,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:23:01 BoogieIcfgContainer [2020-10-22 02:23:01,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:23:01,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:23:01,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:23:01,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:23:01,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:23:00" (1/3) ... [2020-10-22 02:23:01,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d4e450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:23:01, skipping insertion in model container [2020-10-22 02:23:01,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:23:01" (2/3) ... [2020-10-22 02:23:01,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d4e450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:23:01, skipping insertion in model container [2020-10-22 02:23:01,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:23:01" (3/3) ... [2020-10-22 02:23:01,792 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_power.opt.i [2020-10-22 02:23:01,805 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:23:01,805 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:23:01,815 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:23:01,816 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:23:01,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,849 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,849 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,851 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,851 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,851 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,851 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,852 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,852 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,852 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,853 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,853 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,853 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,858 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,858 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,859 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,859 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,866 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,866 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,866 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,866 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,868 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,869 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,869 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,869 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:23:01,874 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:23:01,888 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 02:23:01,909 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:23:01,909 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:23:01,910 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:23:01,910 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:23:01,910 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:23:01,910 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:23:01,910 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:23:01,910 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:23:01,925 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:23:01,926 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-22 02:23:01,929 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-22 02:23:01,932 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-10-22 02:23:01,983 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-10-22 02:23:01,983 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:23:01,989 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 02:23:01,992 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 02:23:03,671 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-22 02:23:03,877 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-10-22 02:23:03,921 INFO L131 LiptonReduction]: Checked pairs total: 2901 [2020-10-22 02:23:03,921 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-10-22 02:23:03,931 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-22 02:23:03,961 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-22 02:23:03,963 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-22 02:23:03,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:23:03,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:03,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:03,976 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:03,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:03,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1054042143, now seen corresponding path program 1 times [2020-10-22 02:23:04,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:04,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335497063] [2020-10-22 02:23:04,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:04,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335497063] [2020-10-22 02:23:04,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:04,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:23:04,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [856669913] [2020-10-22 02:23:04,268 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:04,273 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:04,290 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 02:23:04,290 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:04,295 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:04,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:23:04,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:04,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:23:04,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:23:04,310 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-10-22 02:23:04,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:04,375 INFO L93 Difference]: Finished difference Result 281 states and 711 transitions. [2020-10-22 02:23:04,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:23:04,377 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-22 02:23:04,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:04,392 INFO L225 Difference]: With dead ends: 281 [2020-10-22 02:23:04,393 INFO L226 Difference]: Without dead ends: 180 [2020-10-22 02:23:04,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:23:04,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-22 02:23:04,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-10-22 02:23:04,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-10-22 02:23:04,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2020-10-22 02:23:04,468 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 8 [2020-10-22 02:23:04,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:04,468 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2020-10-22 02:23:04,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:23:04,469 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2020-10-22 02:23:04,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:23:04,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:04,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:04,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:23:04,474 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:04,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:04,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1550829140, now seen corresponding path program 1 times [2020-10-22 02:23:04,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:04,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690533114] [2020-10-22 02:23:04,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:04,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:04,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690533114] [2020-10-22 02:23:04,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:04,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:04,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1247791553] [2020-10-22 02:23:04,638 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:04,639 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:04,643 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 35 transitions. [2020-10-22 02:23:04,643 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:04,839 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1338#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:23:04,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 02:23:04,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:04,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 02:23:04,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-22 02:23:04,842 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand 6 states. [2020-10-22 02:23:04,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:04,894 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-10-22 02:23:04,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:23:04,895 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-22 02:23:04,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:04,897 INFO L225 Difference]: With dead ends: 163 [2020-10-22 02:23:04,897 INFO L226 Difference]: Without dead ends: 126 [2020-10-22 02:23:04,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:23:04,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-22 02:23:04,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-10-22 02:23:04,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-22 02:23:04,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-10-22 02:23:04,911 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-10-22 02:23:04,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:04,911 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-10-22 02:23:04,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 02:23:04,912 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-10-22 02:23:04,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:23:04,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:04,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:04,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:23:04,914 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:04,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:04,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1926964344, now seen corresponding path program 1 times [2020-10-22 02:23:04,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:04,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840122017] [2020-10-22 02:23:04,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:04,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:04,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840122017] [2020-10-22 02:23:04,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:04,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:23:04,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1554554801] [2020-10-22 02:23:04,996 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:04,997 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:05,003 INFO L252 McrAutomatonBuilder]: Finished intersection with 39 states and 66 transitions. [2020-10-22 02:23:05,004 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:05,293 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1764#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:23:05,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:23:05,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:05,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:23:05,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:23:05,296 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 7 states. [2020-10-22 02:23:05,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:05,372 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-10-22 02:23:05,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:23:05,373 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-22 02:23:05,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:05,375 INFO L225 Difference]: With dead ends: 118 [2020-10-22 02:23:05,375 INFO L226 Difference]: Without dead ends: 108 [2020-10-22 02:23:05,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:23:05,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-22 02:23:05,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-22 02:23:05,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-22 02:23:05,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-10-22 02:23:05,384 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-10-22 02:23:05,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:05,384 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-10-22 02:23:05,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:23:05,385 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-10-22 02:23:05,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:23:05,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:05,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:05,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:23:05,387 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:05,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:05,387 INFO L82 PathProgramCache]: Analyzing trace with hash 337836795, now seen corresponding path program 1 times [2020-10-22 02:23:05,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:05,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870860839] [2020-10-22 02:23:05,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:05,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:05,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870860839] [2020-10-22 02:23:05,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:05,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:05,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [581745858] [2020-10-22 02:23:05,451 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:05,453 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:05,460 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2020-10-22 02:23:05,460 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:05,753 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:05,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:23:05,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:05,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:23:05,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:23:05,755 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 4 states. [2020-10-22 02:23:05,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:05,775 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-10-22 02:23:05,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:23:05,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:23:05,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:05,776 INFO L225 Difference]: With dead ends: 133 [2020-10-22 02:23:05,777 INFO L226 Difference]: Without dead ends: 54 [2020-10-22 02:23:05,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:23:05,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-22 02:23:05,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-22 02:23:05,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-22 02:23:05,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-10-22 02:23:05,781 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-10-22 02:23:05,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:05,782 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-10-22 02:23:05,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:23:05,782 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-10-22 02:23:05,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:23:05,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:05,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:05,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:23:05,784 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:05,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:05,784 INFO L82 PathProgramCache]: Analyzing trace with hash 64468355, now seen corresponding path program 2 times [2020-10-22 02:23:05,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:05,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103723160] [2020-10-22 02:23:05,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:05,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:05,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103723160] [2020-10-22 02:23:05,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:05,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:05,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [416534897] [2020-10-22 02:23:05,831 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:05,833 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:05,837 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-10-22 02:23:05,837 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:05,937 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:05,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:23:05,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:05,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:23:05,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:23:05,938 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-10-22 02:23:05,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:05,952 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-10-22 02:23:05,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:23:05,953 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:23:05,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:05,953 INFO L225 Difference]: With dead ends: 67 [2020-10-22 02:23:05,953 INFO L226 Difference]: Without dead ends: 30 [2020-10-22 02:23:05,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:23:05,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-22 02:23:05,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-22 02:23:05,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-22 02:23:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-22 02:23:05,956 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-22 02:23:05,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:05,957 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-22 02:23:05,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:23:05,957 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-22 02:23:05,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:23:05,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:23:05,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:23:05,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:23:05,958 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:23:05,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:23:05,959 INFO L82 PathProgramCache]: Analyzing trace with hash -339277395, now seen corresponding path program 3 times [2020-10-22 02:23:05,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:23:05,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702226839] [2020-10-22 02:23:05,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:23:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:23:06,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:23:06,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702226839] [2020-10-22 02:23:06,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:23:06,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:23:06,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1845413231] [2020-10-22 02:23:06,042 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:23:06,044 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:23:06,047 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 29 transitions. [2020-10-22 02:23:06,047 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:23:06,111 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:23:06,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:23:06,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:23:06,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:23:06,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:23:06,112 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-22 02:23:06,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:23:06,121 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-22 02:23:06,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:23:06,122 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:23:06,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:23:06,122 INFO L225 Difference]: With dead ends: 29 [2020-10-22 02:23:06,122 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:23:06,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:23:06,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:23:06,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:23:06,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:23:06,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:23:06,124 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-22 02:23:06,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:23:06,124 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:23:06,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:23:06,124 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:23:06,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:23:06,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:23:06,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:23:06 BasicIcfg [2020-10-22 02:23:06,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:23:06,130 INFO L168 Benchmark]: Toolchain (without parser) took 5713.45 ms. Allocated memory was 145.2 MB in the beginning and 291.5 MB in the end (delta: 146.3 MB). Free memory was 100.0 MB in the beginning and 203.9 MB in the end (delta: -103.9 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:06,131 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 02:23:06,132 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.13 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 99.1 MB in the beginning and 155.9 MB in the end (delta: -56.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:06,133 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.02 ms. Allocated memory is still 201.9 MB. Free memory was 155.9 MB in the beginning and 153.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:06,134 INFO L168 Benchmark]: Boogie Preprocessor took 30.08 ms. Allocated memory is still 201.9 MB. Free memory was 153.1 MB in the beginning and 151.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:06,134 INFO L168 Benchmark]: RCFGBuilder took 513.24 ms. Allocated memory is still 201.9 MB. Free memory was 151.7 MB in the beginning and 127.7 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:06,135 INFO L168 Benchmark]: TraceAbstraction took 4344.78 ms. Allocated memory was 201.9 MB in the beginning and 291.5 MB in the end (delta: 89.7 MB). Free memory was 127.0 MB in the beginning and 203.9 MB in the end (delta: -76.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-10-22 02:23:06,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 763.13 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 99.1 MB in the beginning and 155.9 MB in the end (delta: -56.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.02 ms. Allocated memory is still 201.9 MB. Free memory was 155.9 MB in the beginning and 153.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.08 ms. Allocated memory is still 201.9 MB. Free memory was 153.1 MB in the beginning and 151.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 513.24 ms. Allocated memory is still 201.9 MB. Free memory was 151.7 MB in the beginning and 127.7 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4344.78 ms. Allocated memory was 201.9 MB in the beginning and 291.5 MB in the end (delta: 89.7 MB). Free memory was 127.0 MB in the beginning and 203.9 MB in the end (delta: -76.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 792 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 49 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 21 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 3 ChoiceCompositions, 75 TotalNumberOfCompositions, 2901 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 115 SDtfs, 155 SDslu, 172 SDs, 0 SdLazy, 65 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 2874 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...