/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-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 15:21:11,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 15:21:11,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 15:21:11,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 15:21:11,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 15:21:11,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 15:21:11,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 15:21:11,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 15:21:11,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 15:21:11,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 15:21:11,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 15:21:11,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 15:21:11,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 15:21:11,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 15:21:11,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 15:21:11,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 15:21:11,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 15:21:11,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 15:21:11,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 15:21:11,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 15:21:11,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 15:21:11,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 15:21:11,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 15:21:11,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 15:21:11,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 15:21:11,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 15:21:11,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 15:21:11,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 15:21:11,801 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 15:21:11,867 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 15:21:11,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 15:21:11,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 15:21:11,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 15:21:11,874 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 15:21:11,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 15:21:11,875 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 15:21:11,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 15:21:11,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 15:21:11,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 15:21:11,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 15:21:11,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 15:21:11,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 15:21:11,878 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 15:21:11,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 15:21:11,879 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 15:21:11,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 15:21:11,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 15:21:11,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 15:21:11,880 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 15:21:11,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 15:21:11,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 15:21:11,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 15:21:11,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 15:21:11,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 15:21:11,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 15:21:11,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 15:21:11,882 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 15:21:11,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 15:21:11,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 15:21:12,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 15:21:12,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 15:21:12,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 15:21:12,414 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 15:21:12,415 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 15:21:12,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-11-11 15:21:12,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03b4db9f4/1fc54b7d74e64840ad234365373da207/FLAGfb20fc3b1 [2020-11-11 15:21:13,389 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 15:21:13,390 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-11-11 15:21:13,406 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03b4db9f4/1fc54b7d74e64840ad234365373da207/FLAGfb20fc3b1 [2020-11-11 15:21:13,588 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03b4db9f4/1fc54b7d74e64840ad234365373da207 [2020-11-11 15:21:13,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 15:21:13,598 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 15:21:13,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 15:21:13,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 15:21:13,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 15:21:13,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 03:21:13" (1/1) ... [2020-11-11 15:21:13,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50082dd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:21:13, skipping insertion in model container [2020-11-11 15:21:13,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 03:21:13" (1/1) ... [2020-11-11 15:21:13,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 15:21:13,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 15:21:13,892 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-11 15:21:14,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 15:21:14,099 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 15:21:14,143 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-11 15:21:14,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 15:21:14,379 INFO L208 MainTranslator]: Completed translation [2020-11-11 15:21:14,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:21:14 WrapperNode [2020-11-11 15:21:14,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 15:21:14,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 15:21:14,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 15:21:14,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 15:21:14,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:21:14" (1/1) ... [2020-11-11 15:21:14,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:21:14" (1/1) ... [2020-11-11 15:21:14,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 15:21:14,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 15:21:14,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 15:21:14,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 15:21:14,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:21:14" (1/1) ... [2020-11-11 15:21:14,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:21:14" (1/1) ... [2020-11-11 15:21:14,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:21:14" (1/1) ... [2020-11-11 15:21:14,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:21:14" (1/1) ... [2020-11-11 15:21:14,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:21:14" (1/1) ... [2020-11-11 15:21:14,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:21:14" (1/1) ... [2020-11-11 15:21:14,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:21:14" (1/1) ... [2020-11-11 15:21:14,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 15:21:14,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 15:21:14,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 15:21:14,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 15:21:14,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:21:14" (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 15:21:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-11 15:21:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-11-11 15:21:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-11-11 15:21:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-11-11 15:21:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-11-11 15:21:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 15:21:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 15:21:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 15:21:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 15:21:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 15:21:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 15:21:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 15:21:14,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 15:21:14,691 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 15:21:15,313 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 15:21:15,313 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-11 15:21:15,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 03:21:15 BoogieIcfgContainer [2020-11-11 15:21:15,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 15:21:15,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 15:21:15,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 15:21:15,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 15:21:15,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 03:21:13" (1/3) ... [2020-11-11 15:21:15,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438b46a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 03:21:15, skipping insertion in model container [2020-11-11 15:21:15,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:21:14" (2/3) ... [2020-11-11 15:21:15,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438b46a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 03:21:15, skipping insertion in model container [2020-11-11 15:21:15,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 03:21:15" (3/3) ... [2020-11-11 15:21:15,326 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2020-11-11 15:21:15,344 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 15:21:15,344 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 15:21:15,349 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-11 15:21:15,350 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 15:21:15,383 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,383 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,383 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,384 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,384 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,384 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,384 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,385 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,385 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,385 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,386 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,386 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,386 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,386 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,387 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,387 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,387 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,387 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,387 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,388 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,388 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,388 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,388 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,389 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,389 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,389 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,389 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,390 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,390 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,390 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,390 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,390 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,391 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,391 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,391 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,391 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,392 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,392 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,392 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,393 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,393 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,393 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,393 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,394 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,394 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,394 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,394 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,394 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,395 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,395 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,402 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,402 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,402 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,402 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,402 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,403 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,403 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,404 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,404 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,404 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,404 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,405 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,405 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,405 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,420 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,420 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,421 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,421 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,421 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,421 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,422 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 15:21:15,433 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-11-11 15:21:15,446 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-11 15:21:15,472 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 15:21:15,472 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 15:21:15,473 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 15:21:15,473 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 15:21:15,473 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 15:21:15,473 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 15:21:15,473 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 15:21:15,473 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 15:21:15,489 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 109 transitions, 240 flow [2020-11-11 15:21:15,648 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2287 states, 2283 states have (on average 3.307928164695576) internal successors, (7552), 2286 states have internal predecessors, (7552), 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 15:21:15,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 2287 states, 2283 states have (on average 3.307928164695576) internal successors, (7552), 2286 states have internal predecessors, (7552), 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 15:21:15,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-11 15:21:15,680 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 15:21:15,681 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] [2020-11-11 15:21:15,682 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 15:21:15,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 15:21:15,690 INFO L82 PathProgramCache]: Analyzing trace with hash -586784410, now seen corresponding path program 1 times [2020-11-11 15:21:15,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 15:21:15,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403362256] [2020-11-11 15:21:15,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 15:21:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 15:21:16,021 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 15:21:16,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403362256] [2020-11-11 15:21:16,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 15:21:16,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-11 15:21:16,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482151991] [2020-11-11 15:21:16,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-11 15:21:16,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 15:21:16,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-11 15:21:16,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-11 15:21:16,055 INFO L87 Difference]: Start difference. First operand has 2287 states, 2283 states have (on average 3.307928164695576) internal successors, (7552), 2286 states have internal predecessors, (7552), 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 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 15:21:16,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 15:21:16,119 INFO L93 Difference]: Finished difference Result 2125 states and 6112 transitions. [2020-11-11 15:21:16,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-11 15:21:16,121 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2020-11-11 15:21:16,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 15:21:16,156 INFO L225 Difference]: With dead ends: 2125 [2020-11-11 15:21:16,156 INFO L226 Difference]: Without dead ends: 1972 [2020-11-11 15:21:16,158 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-11 15:21:16,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2020-11-11 15:21:16,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1972. [2020-11-11 15:21:16,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1972 states, 1969 states have (on average 2.8948704926358557) internal successors, (5700), 1971 states have internal predecessors, (5700), 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 15:21:16,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 5700 transitions. [2020-11-11 15:21:16,344 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 5700 transitions. Word has length 31 [2020-11-11 15:21:16,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 15:21:16,345 INFO L481 AbstractCegarLoop]: Abstraction has 1972 states and 5700 transitions. [2020-11-11 15:21:16,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 15:21:16,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 5700 transitions. [2020-11-11 15:21:16,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-11 15:21:16,353 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 15:21:16,354 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] [2020-11-11 15:21:16,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 15:21:16,355 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 15:21:16,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 15:21:16,359 INFO L82 PathProgramCache]: Analyzing trace with hash -429072540, now seen corresponding path program 1 times [2020-11-11 15:21:16,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 15:21:16,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600917184] [2020-11-11 15:21:16,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 15:21:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 15:21:16,531 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 15:21:16,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600917184] [2020-11-11 15:21:16,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 15:21:16,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 15:21:16,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512691230] [2020-11-11 15:21:16,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 15:21:16,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 15:21:16,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 15:21:16,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 15:21:16,537 INFO L87 Difference]: Start difference. First operand 1972 states and 5700 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 15:21:16,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 15:21:16,590 INFO L93 Difference]: Finished difference Result 1933 states and 5499 transitions. [2020-11-11 15:21:16,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 15:21:16,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2020-11-11 15:21:16,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 15:21:16,605 INFO L225 Difference]: With dead ends: 1933 [2020-11-11 15:21:16,605 INFO L226 Difference]: Without dead ends: 1618 [2020-11-11 15:21:16,606 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 15:21:16,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2020-11-11 15:21:16,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1513. [2020-11-11 15:21:16,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1510 states have (on average 2.870860927152318) internal successors, (4335), 1512 states have internal predecessors, (4335), 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 15:21:16,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 4335 transitions. [2020-11-11 15:21:16,678 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 4335 transitions. Word has length 31 [2020-11-11 15:21:16,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 15:21:16,678 INFO L481 AbstractCegarLoop]: Abstraction has 1513 states and 4335 transitions. [2020-11-11 15:21:16,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 15:21:16,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 4335 transitions. [2020-11-11 15:21:16,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-11 15:21:16,682 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 15:21:16,682 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] [2020-11-11 15:21:16,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 15:21:16,683 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 15:21:16,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 15:21:16,683 INFO L82 PathProgramCache]: Analyzing trace with hash -397946341, now seen corresponding path program 1 times [2020-11-11 15:21:16,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 15:21:16,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626237154] [2020-11-11 15:21:16,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 15:21:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 15:21:16,737 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 15:21:16,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626237154] [2020-11-11 15:21:16,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 15:21:16,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 15:21:16,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825432951] [2020-11-11 15:21:16,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 15:21:16,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 15:21:16,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 15:21:16,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 15:21:16,741 INFO L87 Difference]: Start difference. First operand 1513 states and 4335 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 15:21:16,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 15:21:16,811 INFO L93 Difference]: Finished difference Result 1306 states and 3709 transitions. [2020-11-11 15:21:16,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 15:21:16,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2020-11-11 15:21:16,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 15:21:16,828 INFO L225 Difference]: With dead ends: 1306 [2020-11-11 15:21:16,829 INFO L226 Difference]: Without dead ends: 973 [2020-11-11 15:21:16,829 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 15:21:16,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2020-11-11 15:21:16,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 973. [2020-11-11 15:21:16,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 971 states have (on average 2.8372811534500513) internal successors, (2755), 972 states have internal predecessors, (2755), 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 15:21:16,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 2755 transitions. [2020-11-11 15:21:16,901 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 2755 transitions. Word has length 34 [2020-11-11 15:21:16,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 15:21:16,903 INFO L481 AbstractCegarLoop]: Abstraction has 973 states and 2755 transitions. [2020-11-11 15:21:16,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 15:21:16,903 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 2755 transitions. [2020-11-11 15:21:16,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-11 15:21:16,910 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 15:21:16,910 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 15:21:16,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 15:21:16,911 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 15:21:16,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 15:21:16,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1597625586, now seen corresponding path program 1 times [2020-11-11 15:21:16,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 15:21:16,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083472167] [2020-11-11 15:21:16,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 15:21:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 15:21:17,022 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 15:21:17,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083472167] [2020-11-11 15:21:17,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 15:21:17,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-11 15:21:17,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109296088] [2020-11-11 15:21:17,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 15:21:17,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 15:21:17,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 15:21:17,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 15:21:17,026 INFO L87 Difference]: Start difference. First operand 973 states and 2755 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 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 15:21:17,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 15:21:17,196 INFO L93 Difference]: Finished difference Result 1270 states and 3628 transitions. [2020-11-11 15:21:17,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 15:21:17,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 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 15:21:17,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 15:21:17,206 INFO L225 Difference]: With dead ends: 1270 [2020-11-11 15:21:17,206 INFO L226 Difference]: Without dead ends: 946 [2020-11-11 15:21:17,207 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-11 15:21:17,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2020-11-11 15:21:17,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 847. [2020-11-11 15:21:17,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 845 states have (on average 2.6710059171597633) internal successors, (2257), 846 states have internal predecessors, (2257), 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 15:21:17,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 2257 transitions. [2020-11-11 15:21:17,249 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 2257 transitions. Word has length 45 [2020-11-11 15:21:17,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 15:21:17,250 INFO L481 AbstractCegarLoop]: Abstraction has 847 states and 2257 transitions. [2020-11-11 15:21:17,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 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 15:21:17,251 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 2257 transitions. [2020-11-11 15:21:17,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-11 15:21:17,253 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 15:21:17,254 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 15:21:17,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 15:21:17,254 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 15:21:17,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 15:21:17,256 INFO L82 PathProgramCache]: Analyzing trace with hash -98151660, now seen corresponding path program 2 times [2020-11-11 15:21:17,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 15:21:17,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258031442] [2020-11-11 15:21:17,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 15:21:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 15:21:17,387 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 15:21:17,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258031442] [2020-11-11 15:21:17,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 15:21:17,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-11 15:21:17,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772082428] [2020-11-11 15:21:17,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 15:21:17,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 15:21:17,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 15:21:17,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 15:21:17,390 INFO L87 Difference]: Start difference. First operand 847 states and 2257 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 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 15:21:17,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 15:21:17,508 INFO L93 Difference]: Finished difference Result 1246 states and 3290 transitions. [2020-11-11 15:21:17,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 15:21:17,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 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 15:21:17,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 15:21:17,518 INFO L225 Difference]: With dead ends: 1246 [2020-11-11 15:21:17,518 INFO L226 Difference]: Without dead ends: 1219 [2020-11-11 15:21:17,519 INFO L749 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 [2020-11-11 15:21:17,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2020-11-11 15:21:17,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 913. [2020-11-11 15:21:17,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 911 states have (on average 2.6739846322722283) internal successors, (2436), 912 states have internal predecessors, (2436), 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 15:21:17,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 2436 transitions. [2020-11-11 15:21:17,563 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 2436 transitions. Word has length 45 [2020-11-11 15:21:17,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 15:21:17,564 INFO L481 AbstractCegarLoop]: Abstraction has 913 states and 2436 transitions. [2020-11-11 15:21:17,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 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 15:21:17,564 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 2436 transitions. [2020-11-11 15:21:17,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-11 15:21:17,567 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 15:21:17,567 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 15:21:17,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 15:21:17,568 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 15:21:17,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 15:21:17,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1800867652, now seen corresponding path program 3 times [2020-11-11 15:21:17,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 15:21:17,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367231269] [2020-11-11 15:21:17,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 15:21:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 15:21:17,616 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 15:21:17,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367231269] [2020-11-11 15:21:17,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 15:21:17,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-11 15:21:17,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451070439] [2020-11-11 15:21:17,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 15:21:17,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 15:21:17,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 15:21:17,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 15:21:17,619 INFO L87 Difference]: Start difference. First operand 913 states and 2436 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 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 15:21:17,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 15:21:17,692 INFO L93 Difference]: Finished difference Result 652 states and 1766 transitions. [2020-11-11 15:21:17,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 15:21:17,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 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 15:21:17,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 15:21:17,693 INFO L225 Difference]: With dead ends: 652 [2020-11-11 15:21:17,693 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 15:21:17,694 INFO L749 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 [2020-11-11 15:21:17,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 15:21:17,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 15:21:17,694 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 15:21:17,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 15:21:17,695 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-11-11 15:21:17,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 15:21:17,695 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 15:21:17,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 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 15:21:17,695 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 15:21:17,696 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 15:21:17,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-11 15:21:17,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 03:21:17 BasicIcfg [2020-11-11 15:21:17,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 15:21:17,705 INFO L168 Benchmark]: Toolchain (without parser) took 4110.55 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 277.0 MB in the beginning and 270.8 MB in the end (delta: 6.2 MB). Peak memory consumption was 69.6 MB. Max. memory is 16.0 GB. [2020-11-11 15:21:17,706 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 15:21:17,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.82 ms. Allocated memory is still 302.0 MB. Free memory was 276.4 MB in the beginning and 245.8 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-11 15:21:17,707 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.73 ms. Allocated memory is still 302.0 MB. Free memory was 245.8 MB in the beginning and 243.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 15:21:17,708 INFO L168 Benchmark]: Boogie Preprocessor took 72.18 ms. Allocated memory is still 302.0 MB. Free memory was 243.8 MB in the beginning and 242.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 15:21:17,709 INFO L168 Benchmark]: RCFGBuilder took 758.74 ms. Allocated memory is still 302.0 MB. Free memory was 242.1 MB in the beginning and 262.2 MB in the end (delta: -20.1 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.0 GB. [2020-11-11 15:21:17,710 INFO L168 Benchmark]: TraceAbstraction took 2384.55 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 262.2 MB in the beginning and 270.8 MB in the end (delta: -8.6 MB). Peak memory consumption was 54.3 MB. Max. memory is 16.0 GB. [2020-11-11 15:21:17,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 779.82 ms. Allocated memory is still 302.0 MB. Free memory was 276.4 MB in the beginning and 245.8 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 99.73 ms. Allocated memory is still 302.0 MB. Free memory was 245.8 MB in the beginning and 243.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 72.18 ms. Allocated memory is still 302.0 MB. Free memory was 243.8 MB in the beginning and 242.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 758.74 ms. Allocated memory is still 302.0 MB. Free memory was 242.1 MB in the beginning and 262.2 MB in the end (delta: -20.1 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2384.55 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 262.2 MB in the beginning and 270.8 MB in the end (delta: -8.6 MB). Peak memory consumption was 54.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 86 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 619 SDtfs, 312 SDslu, 502 SDs, 0 SdLazy, 138 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2287occurred 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: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 510 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 231 NumberOfCodeBlocks, 231 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 10671 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...