/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:07:39,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:07:39,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:07:39,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:07:39,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:07:39,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:07:39,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:07:39,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:07:39,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:07:39,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:07:39,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:07:39,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:07:39,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:07:39,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:07:39,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:07:39,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:07:39,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:07:39,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:07:39,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:07:39,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:07:39,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:07:39,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:07:39,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:07:39,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:07:39,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 23:07:39,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 23:07:39,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 23:07:39,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 23:07:39,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 23:07:39,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 23:07:39,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:07:39,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:07:39,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:07:39,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:07:39,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:07:39,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:07:39,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:07:39,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:07:39,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:07:39,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:07:39,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:07:39,212 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 23:07:39,251 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:07:39,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:07:39,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:07:39,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:07:39,254 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:07:39,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:07:39,254 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:07:39,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:07:39,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:07:39,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:07:39,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:07:39,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:07:39,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:07:39,257 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:07:39,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:07:39,257 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:07:39,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:07:39,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:07:39,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:07:39,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:07:39,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:07:39,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:07:39,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:07:39,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:07:39,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:07:39,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:07:39,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:07:39,260 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:07:39,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:07:39,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:07:39,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:07:39,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:07:39,573 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:07:39,573 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:07:39,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2020-10-21 23:07:39,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e30e54fe/e32e78eaed0f4f789f53789c69484caf/FLAG120439880 [2020-10-21 23:07:40,207 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:07:40,208 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2020-10-21 23:07:40,224 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e30e54fe/e32e78eaed0f4f789f53789c69484caf/FLAG120439880 [2020-10-21 23:07:40,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e30e54fe/e32e78eaed0f4f789f53789c69484caf [2020-10-21 23:07:40,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:07:40,497 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:07:40,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:07:40,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:07:40,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:07:40,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:07:40" (1/1) ... [2020-10-21 23:07:40,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30579132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:07:40, skipping insertion in model container [2020-10-21 23:07:40,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:07:40" (1/1) ... [2020-10-21 23:07:40,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:07:40,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:07:40,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:07:41,007 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:07:41,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:07:41,184 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:07:41,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:07:41 WrapperNode [2020-10-21 23:07:41,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:07:41,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:07:41,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:07:41,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:07:41,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:07:41" (1/1) ... [2020-10-21 23:07:41,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:07:41" (1/1) ... [2020-10-21 23:07:41,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:07:41,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:07:41,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:07:41,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:07:41,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:07:41" (1/1) ... [2020-10-21 23:07:41,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:07:41" (1/1) ... [2020-10-21 23:07:41,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:07:41" (1/1) ... [2020-10-21 23:07:41,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:07:41" (1/1) ... [2020-10-21 23:07:41,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:07:41" (1/1) ... [2020-10-21 23:07:41,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:07:41" (1/1) ... [2020-10-21 23:07:41,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:07:41" (1/1) ... [2020-10-21 23:07:41,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:07:41,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:07:41,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:07:41,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:07:41,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:07:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:07:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:07:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 23:07:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:07:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:07:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 23:07:41,337 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 23:07:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 23:07:41,337 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 23:07:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 23:07:41,340 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 23:07:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:07:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 23:07:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:07:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:07:41,343 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:07:41,779 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:07:41,780 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 23:07:41,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:07:41 BoogieIcfgContainer [2020-10-21 23:07:41,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:07:41,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:07:41,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:07:41,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:07:41,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:07:40" (1/3) ... [2020-10-21 23:07:41,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b96f29a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:07:41, skipping insertion in model container [2020-10-21 23:07:41,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:07:41" (2/3) ... [2020-10-21 23:07:41,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b96f29a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:07:41, skipping insertion in model container [2020-10-21 23:07:41,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:07:41" (3/3) ... [2020-10-21 23:07:41,792 INFO L111 eAbstractionObserver]: Analyzing ICFG safe024_tso.opt.i [2020-10-21 23:07:41,804 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:07:41,805 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:07:41,813 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 23:07:41,814 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:07:41,841 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,842 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,842 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,842 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,843 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,843 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,844 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,844 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,844 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,844 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,845 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,845 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,845 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,846 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,846 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,846 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,846 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,847 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,851 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,851 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,851 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,857 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,858 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,858 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,858 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,860 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,861 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,861 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,861 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:07:41,863 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 23:07:41,874 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 23:07:41,892 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:07:41,892 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:07:41,893 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:07:41,893 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:07:41,893 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:07:41,893 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:07:41,893 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:07:41,893 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:07:41,906 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:07:41,906 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-21 23:07:41,909 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-21 23:07:41,911 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-10-21 23:07:41,960 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-10-21 23:07:41,960 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 23:07:41,969 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 63 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. [2020-10-21 23:07:41,977 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 23:07:43,018 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-10-21 23:07:43,768 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-21 23:07:44,004 INFO L131 LiptonReduction]: Checked pairs total: 3412 [2020-10-21 23:07:44,005 INFO L133 LiptonReduction]: Total number of compositions: 77 [2020-10-21 23:07:44,013 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-21 23:07:44,040 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-21 23:07:44,042 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-21 23:07:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 23:07:44,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:07:44,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:07:44,052 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:07:44,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:07:44,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1698580066, now seen corresponding path program 1 times [2020-10-21 23:07:44,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:07:44,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342575683] [2020-10-21 23:07:44,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:07:44,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:07:44,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:07:44,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342575683] [2020-10-21 23:07:44,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:07:44,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:07:44,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56567181] [2020-10-21 23:07:44,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:07:44,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:07:44,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:07:44,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:07:44,393 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-21 23:07:44,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:07:44,467 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-21 23:07:44,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:07:44,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 23:07:44,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:07:44,492 INFO L225 Difference]: With dead ends: 282 [2020-10-21 23:07:44,492 INFO L226 Difference]: Without dead ends: 218 [2020-10-21 23:07:44,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:07:44,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-21 23:07:44,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-21 23:07:44,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-21 23:07:44,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-21 23:07:44,562 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-21 23:07:44,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:07:44,564 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-21 23:07:44,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:07:44,564 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-21 23:07:44,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 23:07:44,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:07:44,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:07:44,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:07:44,567 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:07:44,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:07:44,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1116373545, now seen corresponding path program 1 times [2020-10-21 23:07:44,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:07:44,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946491095] [2020-10-21 23:07:44,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:07:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:07:44,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:07:44,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946491095] [2020-10-21 23:07:44,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:07:44,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:07:44,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733337954] [2020-10-21 23:07:44,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:07:44,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:07:44,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:07:44,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:07:44,682 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-21 23:07:44,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:07:44,727 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-10-21 23:07:44,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:07:44,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-21 23:07:44,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:07:44,730 INFO L225 Difference]: With dead ends: 242 [2020-10-21 23:07:44,730 INFO L226 Difference]: Without dead ends: 146 [2020-10-21 23:07:44,731 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 [2020-10-21 23:07:44,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-21 23:07:44,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-21 23:07:44,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-21 23:07:44,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-10-21 23:07:44,746 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-10-21 23:07:44,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:07:44,746 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-10-21 23:07:44,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:07:44,747 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-10-21 23:07:44,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 23:07:44,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:07:44,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:07:44,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:07:44,749 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:07:44,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:07:44,749 INFO L82 PathProgramCache]: Analyzing trace with hash -906978528, now seen corresponding path program 1 times [2020-10-21 23:07:44,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:07:44,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034009104] [2020-10-21 23:07:44,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:07:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:07:44,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:07:44,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034009104] [2020-10-21 23:07:44,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:07:44,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:07:44,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66962624] [2020-10-21 23:07:44,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:07:44,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:07:44,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:07:44,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:07:44,839 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 4 states. [2020-10-21 23:07:44,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:07:44,873 INFO L93 Difference]: Finished difference Result 165 states and 377 transitions. [2020-10-21 23:07:44,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:07:44,874 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-21 23:07:44,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:07:44,876 INFO L225 Difference]: With dead ends: 165 [2020-10-21 23:07:44,876 INFO L226 Difference]: Without dead ends: 125 [2020-10-21 23:07:44,876 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 [2020-10-21 23:07:44,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-21 23:07:44,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-21 23:07:44,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-21 23:07:44,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 284 transitions. [2020-10-21 23:07:44,887 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 284 transitions. Word has length 11 [2020-10-21 23:07:44,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:07:44,887 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 284 transitions. [2020-10-21 23:07:44,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:07:44,887 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 284 transitions. [2020-10-21 23:07:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 23:07:44,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:07:44,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:07:44,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:07:44,889 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:07:44,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:07:44,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1053183531, now seen corresponding path program 1 times [2020-10-21 23:07:44,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:07:44,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623308320] [2020-10-21 23:07:44,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:07:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:07:45,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:07:45,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623308320] [2020-10-21 23:07:45,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:07:45,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:07:45,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512473100] [2020-10-21 23:07:45,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:07:45,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:07:45,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:07:45,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:07:45,018 INFO L87 Difference]: Start difference. First operand 125 states and 284 transitions. Second operand 5 states. [2020-10-21 23:07:45,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:07:45,066 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-10-21 23:07:45,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 23:07:45,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-21 23:07:45,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:07:45,068 INFO L225 Difference]: With dead ends: 122 [2020-10-21 23:07:45,068 INFO L226 Difference]: Without dead ends: 97 [2020-10-21 23:07:45,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:07:45,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-21 23:07:45,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-21 23:07:45,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-21 23:07:45,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-10-21 23:07:45,075 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 12 [2020-10-21 23:07:45,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:07:45,076 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-10-21 23:07:45,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:07:45,076 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-10-21 23:07:45,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 23:07:45,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:07:45,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:07:45,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:07:45,078 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:07:45,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:07:45,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1529886427, now seen corresponding path program 1 times [2020-10-21 23:07:45,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:07:45,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229737444] [2020-10-21 23:07:45,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:07:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:07:45,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:07:45,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229737444] [2020-10-21 23:07:45,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:07:45,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:07:45,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233981675] [2020-10-21 23:07:45,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 23:07:45,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:07:45,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 23:07:45,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:07:45,160 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 6 states. [2020-10-21 23:07:45,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:07:45,222 INFO L93 Difference]: Finished difference Result 92 states and 190 transitions. [2020-10-21 23:07:45,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 23:07:45,222 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-21 23:07:45,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:07:45,224 INFO L225 Difference]: With dead ends: 92 [2020-10-21 23:07:45,225 INFO L226 Difference]: Without dead ends: 84 [2020-10-21 23:07:45,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:07:45,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-21 23:07:45,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-21 23:07:45,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-21 23:07:45,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2020-10-21 23:07:45,231 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 14 [2020-10-21 23:07:45,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:07:45,231 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2020-10-21 23:07:45,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 23:07:45,231 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-10-21 23:07:45,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 23:07:45,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:07:45,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:07:45,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 23:07:45,233 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:07:45,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:07:45,234 INFO L82 PathProgramCache]: Analyzing trace with hash 212367058, now seen corresponding path program 1 times [2020-10-21 23:07:45,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:07:45,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775844156] [2020-10-21 23:07:45,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:07:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:07:45,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:07:45,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775844156] [2020-10-21 23:07:45,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:07:45,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:07:45,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762969971] [2020-10-21 23:07:45,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:07:45,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:07:45,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:07:45,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:07:45,281 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states. [2020-10-21 23:07:45,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:07:45,296 INFO L93 Difference]: Finished difference Result 97 states and 197 transitions. [2020-10-21 23:07:45,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:07:45,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-21 23:07:45,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:07:45,298 INFO L225 Difference]: With dead ends: 97 [2020-10-21 23:07:45,298 INFO L226 Difference]: Without dead ends: 36 [2020-10-21 23:07:45,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:07:45,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-21 23:07:45,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-21 23:07:45,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-21 23:07:45,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-10-21 23:07:45,301 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 17 [2020-10-21 23:07:45,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:07:45,302 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-10-21 23:07:45,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:07:45,302 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-10-21 23:07:45,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 23:07:45,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:07:45,303 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:07:45,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 23:07:45,303 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:07:45,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:07:45,304 INFO L82 PathProgramCache]: Analyzing trace with hash 671694040, now seen corresponding path program 2 times [2020-10-21 23:07:45,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:07:45,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275206980] [2020-10-21 23:07:45,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:07:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:07:45,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:07:45,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275206980] [2020-10-21 23:07:45,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:07:45,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:07:45,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800854330] [2020-10-21 23:07:45,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:07:45,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:07:45,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:07:45,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:07:45,345 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-10-21 23:07:45,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:07:45,357 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-10-21 23:07:45,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:07:45,357 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-21 23:07:45,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:07:45,358 INFO L225 Difference]: With dead ends: 35 [2020-10-21 23:07:45,358 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 23:07:45,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:07:45,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 23:07:45,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 23:07:45,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 23:07:45,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 23:07:45,359 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-21 23:07:45,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:07:45,360 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 23:07:45,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:07:45,360 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 23:07:45,360 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 23:07:45,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 23:07:45,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:07:45 BasicIcfg [2020-10-21 23:07:45,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:07:45,366 INFO L168 Benchmark]: Toolchain (without parser) took 4874.48 ms. Allocated memory was 140.5 MB in the beginning and 246.9 MB in the end (delta: 106.4 MB). Free memory was 101.0 MB in the beginning and 117.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB. [2020-10-21 23:07:45,367 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 23:07:45,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.01 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 99.9 MB in the beginning and 158.2 MB in the end (delta: -58.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-21 23:07:45,369 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.31 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:07:45,369 INFO L168 Benchmark]: Boogie Preprocessor took 27.28 ms. Allocated memory is still 203.4 MB. Free memory was 156.2 MB in the beginning and 154.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:07:45,370 INFO L168 Benchmark]: RCFGBuilder took 517.72 ms. Allocated memory is still 203.4 MB. Free memory was 154.2 MB in the beginning and 130.3 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-10-21 23:07:45,371 INFO L168 Benchmark]: TraceAbstraction took 3580.10 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 129.6 MB in the beginning and 117.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 55.2 MB. Max. memory is 7.1 GB. [2020-10-21 23:07:45,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 687.01 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 99.9 MB in the beginning and 158.2 MB in the end (delta: -58.3 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.31 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.28 ms. Allocated memory is still 203.4 MB. Free memory was 156.2 MB in the beginning and 154.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 517.72 ms. Allocated memory is still 203.4 MB. Free memory was 154.2 MB in the beginning and 130.3 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3580.10 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 129.6 MB in the beginning and 117.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 55.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 818 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 65 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 77 TotalNumberOfCompositions, 3412 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: 3.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 136 SDtfs, 132 SDslu, 188 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 3089 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...