/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:05:25,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:05:25,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:05:25,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:05:25,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:05:25,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:05:25,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:05:25,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:05:25,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:05:25,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:05:25,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:05:25,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:05:25,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:05:25,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:05:25,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:05:25,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:05:25,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:05:25,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:05:25,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:05:25,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:05:25,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:05:25,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:05:25,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:05:25,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:05:25,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:05:25,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:05:25,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:05:25,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:05:25,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:05:25,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:05:25,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:05:25,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:05:25,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:05:25,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:05:25,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:05:25,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:05:25,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:05:25,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:05:25,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:05:25,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:05:25,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:05:25,246 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 22:05:25,285 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:05:25,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:05:25,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:05:25,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:05:25,288 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:05:25,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:05:25,288 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:05:25,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:05:25,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:05:25,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:05:25,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:05:25,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:05:25,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:05:25,291 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:05:25,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:05:25,291 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:05:25,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:05:25,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:05:25,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:05:25,292 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:05:25,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:05:25,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:05:25,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:05:25,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:05:25,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:05:25,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:05:25,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:05:25,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:05:25,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:05:25,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:05:25,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:05:25,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:05:25,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:05:25,607 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:05:25,608 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:05:25,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i [2020-10-21 22:05:25,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9ad2c18/17946aa8f27e4e27a465da96ffa9e669/FLAG66c91024a [2020-10-21 22:05:26,255 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:05:26,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i [2020-10-21 22:05:26,272 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9ad2c18/17946aa8f27e4e27a465da96ffa9e669/FLAG66c91024a [2020-10-21 22:05:26,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9ad2c18/17946aa8f27e4e27a465da96ffa9e669 [2020-10-21 22:05:26,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:05:26,524 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:05:26,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:05:26,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:05:26,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:05:26,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:05:26" (1/1) ... [2020-10-21 22:05:26,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ebd5848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:26, skipping insertion in model container [2020-10-21 22:05:26,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:05:26" (1/1) ... [2020-10-21 22:05:26,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:05:26,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:05:27,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:05:27,076 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:05:27,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:05:27,211 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:05:27,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:27 WrapperNode [2020-10-21 22:05:27,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:05:27,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:05:27,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:05:27,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:05:27,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:27" (1/1) ... [2020-10-21 22:05:27,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:27" (1/1) ... [2020-10-21 22:05:27,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:05:27,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:05:27,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:05:27,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:05:27,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:27" (1/1) ... [2020-10-21 22:05:27,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:27" (1/1) ... [2020-10-21 22:05:27,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:27" (1/1) ... [2020-10-21 22:05:27,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:27" (1/1) ... [2020-10-21 22:05:27,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:27" (1/1) ... [2020-10-21 22:05:27,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:27" (1/1) ... [2020-10-21 22:05:27,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:27" (1/1) ... [2020-10-21 22:05:27,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:05:27,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:05:27,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:05:27,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:05:27,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:27" (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 22:05:27,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:05:27,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:05:27,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:05:27,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:05:27,385 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 22:05:27,385 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 22:05:27,386 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 22:05:27,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 22:05:27,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:05:27,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:05:27,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:05:27,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:05:27,389 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 22:05:27,735 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:05:27,735 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 22:05:27,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:05:27 BoogieIcfgContainer [2020-10-21 22:05:27,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:05:27,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:05:27,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:05:27,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:05:27,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:05:26" (1/3) ... [2020-10-21 22:05:27,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154934ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:05:27, skipping insertion in model container [2020-10-21 22:05:27,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:27" (2/3) ... [2020-10-21 22:05:27,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154934ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:05:27, skipping insertion in model container [2020-10-21 22:05:27,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:05:27" (3/3) ... [2020-10-21 22:05:27,749 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_pso.opt.i [2020-10-21 22:05:27,762 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:05:27,762 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:05:27,771 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:05:27,772 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:05:27,802 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,803 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,803 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,803 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,804 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,804 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,805 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,806 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,811 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,811 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,820 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,820 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:27,823 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:05:27,837 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-21 22:05:27,858 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:05:27,858 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:05:27,858 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:05:27,858 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:05:27,859 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:05:27,859 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:05:27,859 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:05:27,859 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:05:27,873 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:05:27,877 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-21 22:05:27,880 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-21 22:05:27,882 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-10-21 22:05:27,929 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-10-21 22:05:27,930 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 22:05:27,935 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-21 22:05:27,937 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-10-21 22:05:29,253 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-21 22:05:29,540 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-21 22:05:29,662 INFO L131 LiptonReduction]: Checked pairs total: 1892 [2020-10-21 22:05:29,662 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-10-21 22:05:29,670 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-10-21 22:05:29,687 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-10-21 22:05:29,689 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-10-21 22:05:29,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 22:05:29,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:29,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-21 22:05:29,699 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:29,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:29,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1281927427, now seen corresponding path program 1 times [2020-10-21 22:05:29,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:29,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245455821] [2020-10-21 22:05:29,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:29,895 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 22:05:29,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245455821] [2020-10-21 22:05:29,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:29,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:05:29,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415810159] [2020-10-21 22:05:29,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 22:05:29,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:29,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 22:05:29,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:05:29,923 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-10-21 22:05:29,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:29,939 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-10-21 22:05:29,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 22:05:29,941 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-10-21 22:05:29,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:29,950 INFO L225 Difference]: With dead ends: 90 [2020-10-21 22:05:29,951 INFO L226 Difference]: Without dead ends: 74 [2020-10-21 22:05:29,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:05:29,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-21 22:05:29,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-21 22:05:29,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-21 22:05:29,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-10-21 22:05:29,997 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-10-21 22:05:29,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:29,998 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-10-21 22:05:29,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 22:05:29,998 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-10-21 22:05:29,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-21 22:05:29,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:29,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:30,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:05:30,000 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:30,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:30,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1085050971, now seen corresponding path program 1 times [2020-10-21 22:05:30,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:30,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336625943] [2020-10-21 22:05:30,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:30,123 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 22:05:30,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336625943] [2020-10-21 22:05:30,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:30,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:05:30,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288485374] [2020-10-21 22:05:30,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:05:30,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:30,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:05:30,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:05:30,127 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-10-21 22:05:30,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:30,157 INFO L93 Difference]: Finished difference Result 82 states and 166 transitions. [2020-10-21 22:05:30,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:05:30,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-21 22:05:30,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:30,159 INFO L225 Difference]: With dead ends: 82 [2020-10-21 22:05:30,159 INFO L226 Difference]: Without dead ends: 66 [2020-10-21 22:05:30,160 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 22:05:30,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-21 22:05:30,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-21 22:05:30,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-21 22:05:30,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 138 transitions. [2020-10-21 22:05:30,169 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 138 transitions. Word has length 7 [2020-10-21 22:05:30,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:30,170 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 138 transitions. [2020-10-21 22:05:30,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:05:30,170 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 138 transitions. [2020-10-21 22:05:30,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:05:30,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:30,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:30,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:05:30,172 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:30,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:30,172 INFO L82 PathProgramCache]: Analyzing trace with hash 722349434, now seen corresponding path program 1 times [2020-10-21 22:05:30,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:30,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256524420] [2020-10-21 22:05:30,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:30,287 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 22:05:30,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256524420] [2020-10-21 22:05:30,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:30,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:05:30,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146121031] [2020-10-21 22:05:30,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:05:30,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:30,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:05:30,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:05:30,291 INFO L87 Difference]: Start difference. First operand 66 states and 138 transitions. Second operand 5 states. [2020-10-21 22:05:30,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:30,360 INFO L93 Difference]: Finished difference Result 72 states and 142 transitions. [2020-10-21 22:05:30,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 22:05:30,362 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-10-21 22:05:30,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:30,363 INFO L225 Difference]: With dead ends: 72 [2020-10-21 22:05:30,364 INFO L226 Difference]: Without dead ends: 60 [2020-10-21 22:05:30,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:05:30,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-21 22:05:30,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-21 22:05:30,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-21 22:05:30,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 122 transitions. [2020-10-21 22:05:30,377 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 122 transitions. Word has length 8 [2020-10-21 22:05:30,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:30,377 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 122 transitions. [2020-10-21 22:05:30,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:05:30,377 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 122 transitions. [2020-10-21 22:05:30,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 22:05:30,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:30,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:30,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:05:30,379 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:30,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:30,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1670451402, now seen corresponding path program 1 times [2020-10-21 22:05:30,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:30,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625111549] [2020-10-21 22:05:30,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:30,432 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 22:05:30,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625111549] [2020-10-21 22:05:30,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:30,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:05:30,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061284383] [2020-10-21 22:05:30,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:05:30,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:30,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:05:30,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:05:30,435 INFO L87 Difference]: Start difference. First operand 60 states and 122 transitions. Second operand 5 states. [2020-10-21 22:05:30,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:30,488 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-10-21 22:05:30,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:05:30,489 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-21 22:05:30,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:30,490 INFO L225 Difference]: With dead ends: 75 [2020-10-21 22:05:30,490 INFO L226 Difference]: Without dead ends: 42 [2020-10-21 22:05:30,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:05:30,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-21 22:05:30,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-21 22:05:30,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-21 22:05:30,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2020-10-21 22:05:30,496 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 9 [2020-10-21 22:05:30,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:30,497 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2020-10-21 22:05:30,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:05:30,498 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2020-10-21 22:05:30,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 22:05:30,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:30,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:30,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:05:30,501 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:30,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:30,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1631439828, now seen corresponding path program 1 times [2020-10-21 22:05:30,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:30,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229601020] [2020-10-21 22:05:30,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:30,590 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 22:05:30,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229601020] [2020-10-21 22:05:30,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:30,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:05:30,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940620131] [2020-10-21 22:05:30,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:05:30,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:30,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:05:30,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:05:30,592 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand 5 states. [2020-10-21 22:05:30,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:30,641 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2020-10-21 22:05:30,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:05:30,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-21 22:05:30,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:30,643 INFO L225 Difference]: With dead ends: 36 [2020-10-21 22:05:30,643 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:05:30,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:05:30,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:05:30,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:05:30,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:05:30,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:05:30,644 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-10-21 22:05:30,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:30,645 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:05:30,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:05:30,645 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:05:30,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:05:30,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:05:30,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:05:30 BasicIcfg [2020-10-21 22:05:30,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:05:30,651 INFO L168 Benchmark]: Toolchain (without parser) took 4133.04 ms. Allocated memory was 143.7 MB in the beginning and 246.9 MB in the end (delta: 103.3 MB). Free memory was 104.3 MB in the beginning and 158.7 MB in the end (delta: -54.3 MB). Peak memory consumption was 48.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:30,652 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 125.2 MB in the beginning and 125.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 22:05:30,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.79 ms. Allocated memory was 143.7 MB in the beginning and 205.5 MB in the end (delta: 61.9 MB). Free memory was 103.5 MB in the beginning and 160.2 MB in the end (delta: -56.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:30,654 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.28 ms. Allocated memory is still 205.5 MB. Free memory was 160.2 MB in the beginning and 158.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:30,655 INFO L168 Benchmark]: Boogie Preprocessor took 29.13 ms. Allocated memory is still 205.5 MB. Free memory was 158.4 MB in the beginning and 156.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:30,656 INFO L168 Benchmark]: RCFGBuilder took 444.36 ms. Allocated memory is still 205.5 MB. Free memory was 156.6 MB in the beginning and 134.9 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:30,657 INFO L168 Benchmark]: TraceAbstraction took 2909.09 ms. Allocated memory was 205.5 MB in the beginning and 246.9 MB in the end (delta: 41.4 MB). Free memory was 134.3 MB in the beginning and 158.7 MB in the end (delta: -24.4 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:30,661 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 125.2 MB in the beginning and 125.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.79 ms. Allocated memory was 143.7 MB in the beginning and 205.5 MB in the end (delta: 61.9 MB). Free memory was 103.5 MB in the beginning and 160.2 MB in the end (delta: -56.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.28 ms. Allocated memory is still 205.5 MB. Free memory was 160.2 MB in the beginning and 158.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.13 ms. Allocated memory is still 205.5 MB. Free memory was 158.4 MB in the beginning and 156.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 444.36 ms. Allocated memory is still 205.5 MB. Free memory was 156.6 MB in the beginning and 134.9 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2909.09 ms. Allocated memory was 205.5 MB in the beginning and 246.9 MB in the end (delta: 41.4 MB). Free memory was 134.3 MB in the beginning and 158.7 MB in the end (delta: -24.4 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 543 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 43 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 1892 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 74 SDtfs, 71 SDslu, 96 SDs, 0 SdLazy, 44 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1042 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...