/usr/bin/java -Xmx16000000000 -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/safe000_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 12:52:10,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 12:52:10,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 12:52:10,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 12:52:10,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 12:52:10,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 12:52:10,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 12:52:10,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 12:52:10,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 12:52:10,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 12:52:10,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 12:52:10,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 12:52:10,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 12:52:10,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 12:52:10,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 12:52:10,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 12:52:10,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 12:52:10,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 12:52:10,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 12:52:10,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 12:52:10,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 12:52:10,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 12:52:10,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 12:52:10,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 12:52:10,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 12:52:10,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 12:52:10,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 12:52:10,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 12:52:10,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 12:52:10,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 12:52:10,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 12:52:10,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 12:52:10,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 12:52:10,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 12:52:10,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 12:52:10,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 12:52:10,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 12:52:10,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 12:52:10,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 12:52:10,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 12:52:10,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 12:52:10,211 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 [2020-10-09 12:52:10,232 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 12:52:10,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 12:52:10,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 12:52:10,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 12:52:10,234 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 12:52:10,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 12:52:10,235 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 12:52:10,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 12:52:10,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 12:52:10,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 12:52:10,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 12:52:10,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 12:52:10,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 12:52:10,236 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 12:52:10,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 12:52:10,236 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 12:52:10,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 12:52:10,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 12:52:10,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 12:52:10,237 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 12:52:10,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 12:52:10,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 12:52:10,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 12:52:10,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 12:52:10,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 12:52:10,238 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-09 12:52:10,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 12:52:10,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-09 12:52:10,239 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-09 12:52:10,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 12:52:10,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 12:52:10,554 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 12:52:10,559 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 12:52:10,561 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 12:52:10,563 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 12:52:10,564 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.opt.i [2020-10-09 12:52:10,630 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1be980839/0ab9f368ab1046cbb2c3e4ef5af291b3/FLAG144dd11c1 [2020-10-09 12:52:11,161 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 12:52:11,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.opt.i [2020-10-09 12:52:11,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1be980839/0ab9f368ab1046cbb2c3e4ef5af291b3/FLAG144dd11c1 [2020-10-09 12:52:11,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1be980839/0ab9f368ab1046cbb2c3e4ef5af291b3 [2020-10-09 12:52:11,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 12:52:11,499 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 12:52:11,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 12:52:11,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 12:52:11,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 12:52:11,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 12:52:11" (1/1) ... [2020-10-09 12:52:11,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6abcb939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:52:11, skipping insertion in model container [2020-10-09 12:52:11,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 12:52:11" (1/1) ... [2020-10-09 12:52:11,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 12:52:11,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 12:52:12,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 12:52:12,132 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 12:52:12,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 12:52:12,258 INFO L208 MainTranslator]: Completed translation [2020-10-09 12:52:12,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:52:12 WrapperNode [2020-10-09 12:52:12,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 12:52:12,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 12:52:12,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 12:52:12,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 12:52:12,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:52:12" (1/1) ... [2020-10-09 12:52:12,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:52:12" (1/1) ... [2020-10-09 12:52:12,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 12:52:12,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 12:52:12,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 12:52:12,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 12:52:12,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:52:12" (1/1) ... [2020-10-09 12:52:12,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:52:12" (1/1) ... [2020-10-09 12:52:12,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:52:12" (1/1) ... [2020-10-09 12:52:12,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:52:12" (1/1) ... [2020-10-09 12:52:12,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:52:12" (1/1) ... [2020-10-09 12:52:12,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:52:12" (1/1) ... [2020-10-09 12:52:12,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:52:12" (1/1) ... [2020-10-09 12:52:12,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 12:52:12,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 12:52:12,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 12:52:12,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 12:52:12,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:52:12" (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 [2020-10-09 12:52:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 12:52:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-09 12:52:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 12:52:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 12:52:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-09 12:52:12,395 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-09 12:52:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-09 12:52:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-09 12:52:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-09 12:52:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-09 12:52:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-09 12:52:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 12:52:12,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 12:52:12,398 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 12:52:12,774 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 12:52:12,775 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-09 12:52:12,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 12:52:12 BoogieIcfgContainer [2020-10-09 12:52:12,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 12:52:12,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 12:52:12,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 12:52:12,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 12:52:12,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 12:52:11" (1/3) ... [2020-10-09 12:52:12,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e97ca86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 12:52:12, skipping insertion in model container [2020-10-09 12:52:12,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:52:12" (2/3) ... [2020-10-09 12:52:12,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e97ca86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 12:52:12, skipping insertion in model container [2020-10-09 12:52:12,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 12:52:12" (3/3) ... [2020-10-09 12:52:12,786 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_tso.opt.i [2020-10-09 12:52:12,799 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-09 12:52:12,799 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 12:52:12,807 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-09 12:52:12,808 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 12:52:12,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,836 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,837 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,838 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,838 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,839 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,839 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,840 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,840 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,840 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,841 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,845 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,846 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,846 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,846 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,852 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,852 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,853 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,853 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,861 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,861 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,861 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,861 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:52:12,888 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-09 12:52:12,906 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 12:52:12,906 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 12:52:12,906 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 12:52:12,906 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 12:52:12,906 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 12:52:12,906 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 12:52:12,907 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 12:52:12,907 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 12:52:12,921 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 12:52:12,924 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-09 12:52:12,927 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-09 12:52:12,929 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-09 12:52:12,974 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-09 12:52:12,975 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 12:52:12,980 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-09 12:52:12,983 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-09 12:52:14,607 INFO L132 LiptonReduction]: Checked pairs total: 2810 [2020-10-09 12:52:14,608 INFO L134 LiptonReduction]: Total number of compositions: 60 [2020-10-09 12:52:14,616 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-09 12:52:14,645 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-09 12:52:14,648 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-09 12:52:14,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-09 12:52:14,656 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:52:14,657 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:52:14,658 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:52:14,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:52:14,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-10-09 12:52:14,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:52:14,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609194736] [2020-10-09 12:52:14,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:52:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:52:14,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:52:14,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609194736] [2020-10-09 12:52:14,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:52:14,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-09 12:52:14,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551056562] [2020-10-09 12:52:14,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 12:52:14,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:52:14,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 12:52:14,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:52:14,943 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-09 12:52:14,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:52:14,993 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-09 12:52:14,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 12:52:14,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-09 12:52:14,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:52:15,013 INFO L225 Difference]: With dead ends: 282 [2020-10-09 12:52:15,013 INFO L226 Difference]: Without dead ends: 218 [2020-10-09 12:52:15,015 INFO L673 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 [2020-10-09 12:52:15,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-09 12:52:15,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-09 12:52:15,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-09 12:52:15,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-09 12:52:15,085 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-09 12:52:15,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:52:15,086 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-09 12:52:15,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 12:52:15,087 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-09 12:52:15,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-09 12:52:15,088 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:52:15,089 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:52:15,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-09 12:52:15,089 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:52:15,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:52:15,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-10-09 12:52:15,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:52:15,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143273721] [2020-10-09 12:52:15,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:52:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:52:15,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:52:15,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143273721] [2020-10-09 12:52:15,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:52:15,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:52:15,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146018823] [2020-10-09 12:52:15,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:52:15,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:52:15,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:52:15,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:52:15,226 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-09 12:52:15,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:52:15,258 INFO L93 Difference]: Finished difference Result 290 states and 762 transitions. [2020-10-09 12:52:15,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 12:52:15,258 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-09 12:52:15,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:52:15,261 INFO L225 Difference]: With dead ends: 290 [2020-10-09 12:52:15,261 INFO L226 Difference]: Without dead ends: 164 [2020-10-09 12:52:15,262 INFO L673 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 [2020-10-09 12:52:15,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-09 12:52:15,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-10-09 12:52:15,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-09 12:52:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 424 transitions. [2020-10-09 12:52:15,296 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 424 transitions. Word has length 9 [2020-10-09 12:52:15,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:52:15,296 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 424 transitions. [2020-10-09 12:52:15,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:52:15,297 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 424 transitions. [2020-10-09 12:52:15,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-09 12:52:15,298 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:52:15,298 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:52:15,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-09 12:52:15,299 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:52:15,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:52:15,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1379691760, now seen corresponding path program 1 times [2020-10-09 12:52:15,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:52:15,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896259051] [2020-10-09 12:52:15,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:52:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:52:15,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:52:15,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896259051] [2020-10-09 12:52:15,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:52:15,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:52:15,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858157769] [2020-10-09 12:52:15,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:52:15,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:52:15,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:52:15,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:52:15,347 INFO L87 Difference]: Start difference. First operand 164 states and 424 transitions. Second operand 4 states. [2020-10-09 12:52:15,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:52:15,381 INFO L93 Difference]: Finished difference Result 244 states and 582 transitions. [2020-10-09 12:52:15,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-09 12:52:15,382 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-09 12:52:15,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:52:15,383 INFO L225 Difference]: With dead ends: 244 [2020-10-09 12:52:15,384 INFO L226 Difference]: Without dead ends: 128 [2020-10-09 12:52:15,384 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:52:15,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-09 12:52:15,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 116. [2020-10-09 12:52:15,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-09 12:52:15,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 268 transitions. [2020-10-09 12:52:15,393 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 268 transitions. Word has length 11 [2020-10-09 12:52:15,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:52:15,393 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 268 transitions. [2020-10-09 12:52:15,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:52:15,394 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 268 transitions. [2020-10-09 12:52:15,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-09 12:52:15,395 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:52:15,395 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:52:15,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-09 12:52:15,395 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:52:15,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:52:15,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1517475135, now seen corresponding path program 1 times [2020-10-09 12:52:15,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:52:15,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755023604] [2020-10-09 12:52:15,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:52:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:52:15,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:52:15,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755023604] [2020-10-09 12:52:15,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:52:15,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-09 12:52:15,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165458193] [2020-10-09 12:52:15,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 12:52:15,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:52:15,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 12:52:15,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:52:15,455 INFO L87 Difference]: Start difference. First operand 116 states and 268 transitions. Second operand 3 states. [2020-10-09 12:52:15,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:52:15,460 INFO L93 Difference]: Finished difference Result 110 states and 249 transitions. [2020-10-09 12:52:15,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 12:52:15,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-09 12:52:15,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:52:15,462 INFO L225 Difference]: With dead ends: 110 [2020-10-09 12:52:15,462 INFO L226 Difference]: Without dead ends: 110 [2020-10-09 12:52:15,463 INFO L673 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 [2020-10-09 12:52:15,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-09 12:52:15,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-10-09 12:52:15,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-09 12:52:15,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 249 transitions. [2020-10-09 12:52:15,470 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 249 transitions. Word has length 11 [2020-10-09 12:52:15,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:52:15,471 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 249 transitions. [2020-10-09 12:52:15,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 12:52:15,471 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 249 transitions. [2020-10-09 12:52:15,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-09 12:52:15,472 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:52:15,472 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:52:15,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-09 12:52:15,472 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:52:15,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:52:15,473 INFO L82 PathProgramCache]: Analyzing trace with hash -142823170, now seen corresponding path program 1 times [2020-10-09 12:52:15,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:52:15,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9909000] [2020-10-09 12:52:15,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:52:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:52:15,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:52:15,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9909000] [2020-10-09 12:52:15,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:52:15,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:52:15,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641712773] [2020-10-09 12:52:15,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:52:15,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:52:15,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:52:15,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:52:15,513 INFO L87 Difference]: Start difference. First operand 110 states and 249 transitions. Second operand 4 states. [2020-10-09 12:52:15,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:52:15,532 INFO L93 Difference]: Finished difference Result 112 states and 234 transitions. [2020-10-09 12:52:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 12:52:15,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-09 12:52:15,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:52:15,534 INFO L225 Difference]: With dead ends: 112 [2020-10-09 12:52:15,534 INFO L226 Difference]: Without dead ends: 46 [2020-10-09 12:52:15,534 INFO L673 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 [2020-10-09 12:52:15,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-09 12:52:15,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-09 12:52:15,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-09 12:52:15,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 84 transitions. [2020-10-09 12:52:15,538 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 84 transitions. Word has length 12 [2020-10-09 12:52:15,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:52:15,539 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 84 transitions. [2020-10-09 12:52:15,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:52:15,539 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 84 transitions. [2020-10-09 12:52:15,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-09 12:52:15,540 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:52:15,540 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:52:15,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-09 12:52:15,540 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:52:15,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:52:15,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1997055762, now seen corresponding path program 1 times [2020-10-09 12:52:15,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:52:15,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015146793] [2020-10-09 12:52:15,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:52:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:52:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:52:15,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015146793] [2020-10-09 12:52:15,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:52:15,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:52:15,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225551271] [2020-10-09 12:52:15,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:52:15,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:52:15,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:52:15,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:52:15,582 INFO L87 Difference]: Start difference. First operand 46 states and 84 transitions. Second operand 4 states. [2020-10-09 12:52:15,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:52:15,595 INFO L93 Difference]: Finished difference Result 34 states and 60 transitions. [2020-10-09 12:52:15,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 12:52:15,596 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-09 12:52:15,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:52:15,596 INFO L225 Difference]: With dead ends: 34 [2020-10-09 12:52:15,596 INFO L226 Difference]: Without dead ends: 0 [2020-10-09 12:52:15,597 INFO L673 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 [2020-10-09 12:52:15,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-09 12:52:15,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-09 12:52:15,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-09 12:52:15,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-09 12:52:15,598 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-09 12:52:15,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:52:15,598 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-09 12:52:15,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:52:15,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-09 12:52:15,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-09 12:52:15,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-09 12:52:15,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 12:52:15 BasicIcfg [2020-10-09 12:52:15,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 12:52:15,605 INFO L168 Benchmark]: Toolchain (without parser) took 4105.69 ms. Allocated memory was 249.6 MB in the beginning and 365.4 MB in the end (delta: 115.9 MB). Free memory was 204.1 MB in the beginning and 272.8 MB in the end (delta: -68.7 MB). Peak memory consumption was 47.2 MB. Max. memory is 14.2 GB. [2020-10-09 12:52:15,606 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 249.6 MB. Free memory is still 225.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 12:52:15,607 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.92 ms. Allocated memory was 249.6 MB in the beginning and 306.7 MB in the end (delta: 57.1 MB). Free memory was 204.1 MB in the beginning and 259.6 MB in the end (delta: -55.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.2 GB. [2020-10-09 12:52:15,608 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.03 ms. Allocated memory is still 306.7 MB. Free memory is still 259.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 12:52:15,608 INFO L168 Benchmark]: Boogie Preprocessor took 25.21 ms. Allocated memory is still 306.7 MB. Free memory was 259.6 MB in the beginning and 257.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 12:52:15,609 INFO L168 Benchmark]: RCFGBuilder took 444.28 ms. Allocated memory is still 306.7 MB. Free memory was 257.1 MB in the beginning and 234.9 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 14.2 GB. [2020-10-09 12:52:15,610 INFO L168 Benchmark]: TraceAbstraction took 2823.60 ms. Allocated memory was 306.7 MB in the beginning and 365.4 MB in the end (delta: 58.7 MB). Free memory was 234.9 MB in the beginning and 272.8 MB in the end (delta: -37.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 14.2 GB. [2020-10-09 12:52:15,614 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 249.6 MB. Free memory is still 225.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 758.92 ms. Allocated memory was 249.6 MB in the beginning and 306.7 MB in the end (delta: 57.1 MB). Free memory was 204.1 MB in the beginning and 259.6 MB in the end (delta: -55.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 48.03 ms. Allocated memory is still 306.7 MB. Free memory is still 259.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.21 ms. Allocated memory is still 306.7 MB. Free memory was 259.6 MB in the beginning and 257.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 444.28 ms. Allocated memory is still 306.7 MB. Free memory was 257.1 MB in the beginning and 234.9 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2823.60 ms. Allocated memory was 306.7 MB in the beginning and 365.4 MB in the end (delta: 58.7 MB). Free memory was 234.9 MB in the beginning and 272.8 MB in the end (delta: -37.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 850 VarBasedMoverChecksPositive, 43 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 70 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 60 TotalNumberOfCompositions, 2810 MoverChecksTotal - PositiveResult [Line: 7]: 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 105 SDtfs, 84 SDslu, 96 SDs, 0 SdLazy, 37 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 1594 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...