/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:17:36,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:17:36,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:17:36,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:17:36,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:17:36,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:17:36,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:17:36,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:17:36,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:17:36,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:17:36,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:17:36,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:17:36,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:17:36,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:17:36,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:17:36,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:17:36,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:17:36,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:17:36,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:17:36,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:17:36,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:17:36,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:17:36,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:17:36,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:17:36,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 18:17:36,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:17:36,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:17:36,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:17:36,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:17:36,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:17:36,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:17:36,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:17:36,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:17:36,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:17:36,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:17:36,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:17:36,357 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-11-11 18:17:36,385 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:17:36,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:17:36,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:17:36,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:17:36,387 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:17:36,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:17:36,388 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:17:36,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:17:36,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:17:36,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:17:36,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:17:36,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:17:36,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:17:36,389 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:17:36,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:17:36,390 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:17:36,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:17:36,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:17:36,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:17:36,390 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:17:36,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:17:36,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:17:36,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:17:36,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:17:36,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:17:36,392 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:17:36,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:17:36,392 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:17:36,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:17:36,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:17:36,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:17:36,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:17:36,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:17:36,888 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:17:36,889 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:17:36,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_power.opt.i [2020-11-11 18:17:36,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de5c81dfd/49a59f399aa44df4b4bf996f12e6b154/FLAG16accd570 [2020-11-11 18:17:37,751 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:17:37,753 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_power.opt.i [2020-11-11 18:17:37,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de5c81dfd/49a59f399aa44df4b4bf996f12e6b154/FLAG16accd570 [2020-11-11 18:17:38,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de5c81dfd/49a59f399aa44df4b4bf996f12e6b154 [2020-11-11 18:17:38,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:17:38,032 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:17:38,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:17:38,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:17:38,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:17:38,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:17:38" (1/1) ... [2020-11-11 18:17:38,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255d2455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:38, skipping insertion in model container [2020-11-11 18:17:38,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:17:38" (1/1) ... [2020-11-11 18:17:38,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:17:38,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:17:38,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:17:38,498 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:17:38,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:17:38,672 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:17:38,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:38 WrapperNode [2020-11-11 18:17:38,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:17:38,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:17:38,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:17:38,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:17:38,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:38" (1/1) ... [2020-11-11 18:17:38,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:38" (1/1) ... [2020-11-11 18:17:38,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:17:38,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:17:38,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:17:38,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:17:38,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:38" (1/1) ... [2020-11-11 18:17:38,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:38" (1/1) ... [2020-11-11 18:17:38,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:38" (1/1) ... [2020-11-11 18:17:38,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:38" (1/1) ... [2020-11-11 18:17:38,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:38" (1/1) ... [2020-11-11 18:17:38,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:38" (1/1) ... [2020-11-11 18:17:38,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:38" (1/1) ... [2020-11-11 18:17:38,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:17:38,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:17:38,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:17:38,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:17:38,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:38" (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 [2020-11-11 18:17:38,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:17:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:17:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:17:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:17:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:17:38,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:17:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:17:38,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:17:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:17:38,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:17:38,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:17:38,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:17:38,910 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:17:39,462 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:17:39,463 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:17:39,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:17:39 BoogieIcfgContainer [2020-11-11 18:17:39,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:17:39,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:17:39,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:17:39,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:17:39,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:17:38" (1/3) ... [2020-11-11 18:17:39,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6295f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:17:39, skipping insertion in model container [2020-11-11 18:17:39,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:38" (2/3) ... [2020-11-11 18:17:39,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6295f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:17:39, skipping insertion in model container [2020-11-11 18:17:39,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:17:39" (3/3) ... [2020-11-11 18:17:39,475 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_power.opt.i [2020-11-11 18:17:39,492 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:17:39,492 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:17:39,496 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:17:39,497 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:17:39,538 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,538 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,538 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,538 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,539 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,539 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,539 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,539 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,540 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,540 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,540 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,540 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,544 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,544 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,549 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,549 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,549 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,549 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,558 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,559 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,559 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,559 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:39,564 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:17:39,577 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-11 18:17:39,602 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:17:39,603 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:17:39,603 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:17:39,603 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:17:39,603 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:17:39,603 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:17:39,603 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:17:39,604 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:17:39,617 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2020-11-11 18:17:39,704 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:39,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:39,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-11 18:17:39,732 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:39,733 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:17:39,733 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:39,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:39,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1361290816, now seen corresponding path program 1 times [2020-11-11 18:17:39,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:39,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706657236] [2020-11-11 18:17:39,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:40,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:40,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706657236] [2020-11-11 18:17:40,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:40,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:17:40,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674590970] [2020-11-11 18:17:40,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:17:40,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:40,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:17:40,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:17:40,206 INFO L87 Difference]: Start difference. First operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:40,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:40,493 INFO L93 Difference]: Finished difference Result 1116 states and 2790 transitions. [2020-11-11 18:17:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:17:40,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2020-11-11 18:17:40,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:40,518 INFO L225 Difference]: With dead ends: 1116 [2020-11-11 18:17:40,518 INFO L226 Difference]: Without dead ends: 574 [2020-11-11 18:17:40,522 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:17:40,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-11-11 18:17:40,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2020-11-11 18:17:40,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 573 states have (on average 2.431064572425829) internal successors, (1393), 573 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 1393 transitions. [2020-11-11 18:17:40,641 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 1393 transitions. Word has length 37 [2020-11-11 18:17:40,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:40,642 INFO L481 AbstractCegarLoop]: Abstraction has 574 states and 1393 transitions. [2020-11-11 18:17:40,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:40,642 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 1393 transitions. [2020-11-11 18:17:40,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-11 18:17:40,645 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:40,645 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:17:40,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:17:40,646 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:40,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:40,647 INFO L82 PathProgramCache]: Analyzing trace with hash 160702942, now seen corresponding path program 1 times [2020-11-11 18:17:40,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:40,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863728796] [2020-11-11 18:17:40,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:40,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:40,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863728796] [2020-11-11 18:17:40,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:40,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:17:40,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348399402] [2020-11-11 18:17:40,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:17:40,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:40,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:17:40,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:17:40,851 INFO L87 Difference]: Start difference. First operand 574 states and 1393 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:41,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:41,090 INFO L93 Difference]: Finished difference Result 394 states and 892 transitions. [2020-11-11 18:17:41,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:17:41,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2020-11-11 18:17:41,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:41,094 INFO L225 Difference]: With dead ends: 394 [2020-11-11 18:17:41,094 INFO L226 Difference]: Without dead ends: 262 [2020-11-11 18:17:41,095 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-11 18:17:41,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-11-11 18:17:41,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-11-11 18:17:41,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 261 states have (on average 2.1494252873563218) internal successors, (561), 261 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:41,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 561 transitions. [2020-11-11 18:17:41,112 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 561 transitions. Word has length 41 [2020-11-11 18:17:41,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:41,113 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 561 transitions. [2020-11-11 18:17:41,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:41,113 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 561 transitions. [2020-11-11 18:17:41,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-11 18:17:41,115 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:41,115 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:17:41,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:17:41,116 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:41,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:41,117 INFO L82 PathProgramCache]: Analyzing trace with hash 96714268, now seen corresponding path program 1 times [2020-11-11 18:17:41,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:41,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653416807] [2020-11-11 18:17:41,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:41,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:41,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653416807] [2020-11-11 18:17:41,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:41,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:17:41,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302007488] [2020-11-11 18:17:41,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:17:41,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:41,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:17:41,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:17:41,275 INFO L87 Difference]: Start difference. First operand 262 states and 561 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:41,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:41,383 INFO L93 Difference]: Finished difference Result 383 states and 832 transitions. [2020-11-11 18:17:41,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:17:41,384 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-11-11 18:17:41,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:41,386 INFO L225 Difference]: With dead ends: 383 [2020-11-11 18:17:41,386 INFO L226 Difference]: Without dead ends: 232 [2020-11-11 18:17:41,387 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:17:41,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-11-11 18:17:41,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2020-11-11 18:17:41,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 231 states have (on average 2.103896103896104) internal successors, (486), 231 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:41,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 486 transitions. [2020-11-11 18:17:41,399 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 486 transitions. Word has length 45 [2020-11-11 18:17:41,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:41,400 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 486 transitions. [2020-11-11 18:17:41,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:41,400 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 486 transitions. [2020-11-11 18:17:41,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-11 18:17:41,401 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:41,402 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:17:41,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:17:41,402 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:41,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:41,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1383140064, now seen corresponding path program 2 times [2020-11-11 18:17:41,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:41,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490597733] [2020-11-11 18:17:41,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:41,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:41,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490597733] [2020-11-11 18:17:41,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:41,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:17:41,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521451054] [2020-11-11 18:17:41,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:17:41,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:41,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:17:41,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:17:41,553 INFO L87 Difference]: Start difference. First operand 232 states and 486 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:41,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:41,647 INFO L93 Difference]: Finished difference Result 196 states and 402 transitions. [2020-11-11 18:17:41,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:17:41,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-11-11 18:17:41,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:41,648 INFO L225 Difference]: With dead ends: 196 [2020-11-11 18:17:41,648 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:17:41,649 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:17:41,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:17:41,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:17:41,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:41,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:17:41,650 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-11-11 18:17:41,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:41,650 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:17:41,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:41,650 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:17:41,650 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:17:41,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:17:41,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:17:41 BasicIcfg [2020-11-11 18:17:41,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:17:41,659 INFO L168 Benchmark]: Toolchain (without parser) took 3630.54 ms. Allocated memory is still 304.1 MB. Free memory was 278.5 MB in the beginning and 257.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:41,660 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 304.1 MB. Free memory was 275.0 MB in the beginning and 274.9 MB in the end (delta: 136.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:17:41,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.77 ms. Allocated memory is still 304.1 MB. Free memory was 277.9 MB in the beginning and 278.4 MB in the end (delta: -529.6 kB). Peak memory consumption was 30.4 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:41,661 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.15 ms. Allocated memory is still 304.1 MB. Free memory was 278.4 MB in the beginning and 276.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:41,662 INFO L168 Benchmark]: Boogie Preprocessor took 55.13 ms. Allocated memory is still 304.1 MB. Free memory was 276.3 MB in the beginning and 275.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:41,663 INFO L168 Benchmark]: RCFGBuilder took 651.98 ms. Allocated memory is still 304.1 MB. Free memory was 275.3 MB in the beginning and 253.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:41,664 INFO L168 Benchmark]: TraceAbstraction took 2188.40 ms. Allocated memory is still 304.1 MB. Free memory was 253.3 MB in the beginning and 257.0 MB in the end (delta: -3.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:17:41,668 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 304.1 MB. Free memory was 275.0 MB in the beginning and 274.9 MB in the end (delta: 136.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 638.77 ms. Allocated memory is still 304.1 MB. Free memory was 277.9 MB in the beginning and 278.4 MB in the end (delta: -529.6 kB). Peak memory consumption was 30.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 82.15 ms. Allocated memory is still 304.1 MB. Free memory was 278.4 MB in the beginning and 276.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 55.13 ms. Allocated memory is still 304.1 MB. Free memory was 276.3 MB in the beginning and 275.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 651.98 ms. Allocated memory is still 304.1 MB. Free memory was 275.3 MB in the beginning and 253.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2188.40 ms. Allocated memory is still 304.1 MB. Free memory was 253.3 MB in the beginning and 257.0 MB in the end (delta: -3.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 268 SDtfs, 329 SDslu, 927 SDs, 0 SdLazy, 116 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1321occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 16640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...