/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:38:54,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:38:54,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:38:54,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:38:54,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:38:54,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:38:54,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:38:54,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:38:54,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:38:54,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:38:54,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:38:54,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:38:54,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:38:54,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:38:54,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:38:54,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:38:54,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:38:54,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:38:54,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:38:54,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:38:54,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:38:54,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:38:54,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:38:54,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:38:54,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:38:54,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:38:54,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:38:54,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:38:54,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:38:54,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:38:54,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:38:54,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:38:54,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:38:54,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:38:54,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:38:54,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:38:54,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:38:54,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:38:54,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:38:54,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:38:54,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:38:54,532 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 22:38:54,554 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:38:54,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:38:54,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:38:54,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:38:54,556 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:38:54,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:38:54,556 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:38:54,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:38:54,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:38:54,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:38:54,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:38:54,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:38:54,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:38:54,557 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:38:54,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:38:54,558 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:38:54,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:38:54,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:38:54,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:38:54,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:38:54,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:38:54,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:38:54,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:38:54,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 22:38:54,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:38:54,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:38:54,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:38:54,560 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 22:38:54,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:38:54,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:38:54,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:38:54,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:38:54,867 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:38:54,868 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:38:54,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2020-10-21 22:38:54,931 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d5ef3d85/8a5cc6ad581745efaef5c1d7f5deb6ef/FLAG1a0e20db3 [2020-10-21 22:38:55,498 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:38:55,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2020-10-21 22:38:55,514 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d5ef3d85/8a5cc6ad581745efaef5c1d7f5deb6ef/FLAG1a0e20db3 [2020-10-21 22:38:55,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d5ef3d85/8a5cc6ad581745efaef5c1d7f5deb6ef [2020-10-21 22:38:55,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:38:55,797 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:38:55,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:38:55,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:38:55,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:38:55,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:38:55" (1/1) ... [2020-10-21 22:38:55,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76174f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:55, skipping insertion in model container [2020-10-21 22:38:55,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:38:55" (1/1) ... [2020-10-21 22:38:55,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:38:55,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:38:56,154 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-21 22:38:56,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:38:56,309 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:38:56,328 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-21 22:38:56,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:38:56,482 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:38:56,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:56 WrapperNode [2020-10-21 22:38:56,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:38:56,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:38:56,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:38:56,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:38:56,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:56" (1/1) ... [2020-10-21 22:38:56,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:56" (1/1) ... [2020-10-21 22:38:56,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:38:56,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:38:56,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:38:56,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:38:56,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:56" (1/1) ... [2020-10-21 22:38:56,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:56" (1/1) ... [2020-10-21 22:38:56,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:56" (1/1) ... [2020-10-21 22:38:56,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:56" (1/1) ... [2020-10-21 22:38:56,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:56" (1/1) ... [2020-10-21 22:38:56,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:56" (1/1) ... [2020-10-21 22:38:56,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:56" (1/1) ... [2020-10-21 22:38:56,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:38:56,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:38:56,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:38:56,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:38:56,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:38:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 22:38:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-21 22:38:56,682 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-21 22:38:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-21 22:38:56,682 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-21 22:38:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:38:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:38:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:38:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:38:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:38:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:38:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:38:56,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:38:56,685 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:38:57,123 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:38:57,124 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-21 22:38:57,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:38:57 BoogieIcfgContainer [2020-10-21 22:38:57,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:38:57,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:38:57,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:38:57,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:38:57,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:38:55" (1/3) ... [2020-10-21 22:38:57,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602c84d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:38:57, skipping insertion in model container [2020-10-21 22:38:57,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:56" (2/3) ... [2020-10-21 22:38:57,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602c84d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:38:57, skipping insertion in model container [2020-10-21 22:38:57,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:38:57" (3/3) ... [2020-10-21 22:38:57,137 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker.i [2020-10-21 22:38:57,150 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:38:57,150 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:38:57,158 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-21 22:38:57,159 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:38:57,192 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,192 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,194 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,194 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,194 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,196 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,196 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,197 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,197 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,198 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,198 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,199 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,200 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,200 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,200 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,204 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,204 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,210 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,210 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,211 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,211 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,211 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,219 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,220 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,220 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,220 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,220 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,220 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,220 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:38:57,237 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 22:38:57,253 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-21 22:38:57,277 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:38:57,277 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:38:57,277 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 22:38:57,278 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:38:57,278 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:38:57,278 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:38:57,278 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:38:57,278 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:38:57,300 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 22:38:57,301 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 100 transitions, 222 flow [2020-10-21 22:38:57,304 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 100 transitions, 222 flow [2020-10-21 22:38:57,306 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 90 places, 100 transitions, 222 flow [2020-10-21 22:38:57,359 INFO L129 PetriNetUnfolder]: 16/100 cut-off events. [2020-10-21 22:38:57,359 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-21 22:38:57,367 INFO L80 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 100 events. 16/100 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 175 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 67. Up to 3 conditions per place. [2020-10-21 22:38:57,371 INFO L116 LiptonReduction]: Number of co-enabled transitions 2296 [2020-10-21 22:38:58,785 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-10-21 22:38:59,139 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2020-10-21 22:38:59,265 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-21 22:38:59,286 INFO L131 LiptonReduction]: Checked pairs total: 8520 [2020-10-21 22:38:59,286 INFO L133 LiptonReduction]: Total number of compositions: 77 [2020-10-21 22:38:59,295 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 47 transitions, 116 flow [2020-10-21 22:38:59,328 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 418 states. [2020-10-21 22:38:59,331 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states. [2020-10-21 22:38:59,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 22:38:59,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:38:59,339 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-21 22:38:59,339 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:38:59,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:38:59,346 INFO L82 PathProgramCache]: Analyzing trace with hash -242800708, now seen corresponding path program 1 times [2020-10-21 22:38:59,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:38:59,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434859855] [2020-10-21 22:38:59,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:38:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:38:59,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:38:59,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434859855] [2020-10-21 22:38:59,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:38:59,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:38:59,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648897223] [2020-10-21 22:38:59,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:38:59,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:38:59,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:38:59,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:38:59,619 INFO L87 Difference]: Start difference. First operand 418 states. Second operand 3 states. [2020-10-21 22:38:59,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:38:59,691 INFO L93 Difference]: Finished difference Result 457 states and 1131 transitions. [2020-10-21 22:38:59,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:38:59,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-21 22:38:59,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:38:59,709 INFO L225 Difference]: With dead ends: 457 [2020-10-21 22:38:59,710 INFO L226 Difference]: Without dead ends: 262 [2020-10-21 22:38:59,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:38:59,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-21 22:38:59,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 244. [2020-10-21 22:38:59,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-10-21 22:38:59,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 645 transitions. [2020-10-21 22:38:59,780 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 645 transitions. Word has length 6 [2020-10-21 22:38:59,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:38:59,781 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 645 transitions. [2020-10-21 22:38:59,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:38:59,782 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 645 transitions. [2020-10-21 22:38:59,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:38:59,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:38:59,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:38:59,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:38:59,784 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:38:59,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:38:59,784 INFO L82 PathProgramCache]: Analyzing trace with hash -833333921, now seen corresponding path program 1 times [2020-10-21 22:38:59,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:38:59,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707609927] [2020-10-21 22:38:59,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:38:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:38:59,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:38:59,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707609927] [2020-10-21 22:38:59,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:38:59,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:38:59,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927416645] [2020-10-21 22:38:59,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:38:59,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:38:59,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:38:59,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:38:59,917 INFO L87 Difference]: Start difference. First operand 244 states and 645 transitions. Second operand 3 states. [2020-10-21 22:38:59,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:38:59,976 INFO L93 Difference]: Finished difference Result 229 states and 589 transitions. [2020-10-21 22:38:59,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:38:59,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:38:59,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:38:59,979 INFO L225 Difference]: With dead ends: 229 [2020-10-21 22:38:59,980 INFO L226 Difference]: Without dead ends: 156 [2020-10-21 22:38:59,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:38:59,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-21 22:38:59,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2020-10-21 22:38:59,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-21 22:38:59,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 408 transitions. [2020-10-21 22:38:59,996 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 408 transitions. Word has length 8 [2020-10-21 22:38:59,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:38:59,996 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 408 transitions. [2020-10-21 22:38:59,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:38:59,996 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 408 transitions. [2020-10-21 22:38:59,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:38:59,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:38:59,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:38:59,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:38:59,999 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:38:59,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:38:59,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1922613293, now seen corresponding path program 1 times [2020-10-21 22:38:59,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:00,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96021575] [2020-10-21 22:39:00,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:00,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:00,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96021575] [2020-10-21 22:39:00,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:00,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:39:00,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813100428] [2020-10-21 22:39:00,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:39:00,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:00,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:39:00,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:39:00,068 INFO L87 Difference]: Start difference. First operand 156 states and 408 transitions. Second operand 4 states. [2020-10-21 22:39:00,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:00,119 INFO L93 Difference]: Finished difference Result 204 states and 568 transitions. [2020-10-21 22:39:00,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:39:00,120 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-21 22:39:00,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:00,122 INFO L225 Difference]: With dead ends: 204 [2020-10-21 22:39:00,122 INFO L226 Difference]: Without dead ends: 150 [2020-10-21 22:39:00,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:39:00,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-21 22:39:00,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-10-21 22:39:00,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-21 22:39:00,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 388 transitions. [2020-10-21 22:39:00,136 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 388 transitions. Word has length 11 [2020-10-21 22:39:00,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:00,137 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 388 transitions. [2020-10-21 22:39:00,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:39:00,137 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 388 transitions. [2020-10-21 22:39:00,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:39:00,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:00,139 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:00,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:39:00,139 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:00,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:00,140 INFO L82 PathProgramCache]: Analyzing trace with hash -941366756, now seen corresponding path program 1 times [2020-10-21 22:39:00,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:00,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869059425] [2020-10-21 22:39:00,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:00,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:00,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869059425] [2020-10-21 22:39:00,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:00,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:39:00,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814793015] [2020-10-21 22:39:00,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:39:00,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:00,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:39:00,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:39:00,203 INFO L87 Difference]: Start difference. First operand 150 states and 388 transitions. Second operand 4 states. [2020-10-21 22:39:00,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:00,240 INFO L93 Difference]: Finished difference Result 198 states and 544 transitions. [2020-10-21 22:39:00,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:39:00,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-21 22:39:00,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:00,243 INFO L225 Difference]: With dead ends: 198 [2020-10-21 22:39:00,243 INFO L226 Difference]: Without dead ends: 144 [2020-10-21 22:39:00,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:39:00,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-21 22:39:00,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-21 22:39:00,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-21 22:39:00,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 367 transitions. [2020-10-21 22:39:00,253 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 367 transitions. Word has length 11 [2020-10-21 22:39:00,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:00,253 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 367 transitions. [2020-10-21 22:39:00,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:39:00,254 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 367 transitions. [2020-10-21 22:39:00,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:39:00,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:00,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:00,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:39:00,256 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:00,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:00,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1713958866, now seen corresponding path program 1 times [2020-10-21 22:39:00,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:00,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591792300] [2020-10-21 22:39:00,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:00,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:00,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591792300] [2020-10-21 22:39:00,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:00,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:39:00,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505392184] [2020-10-21 22:39:00,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:39:00,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:00,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:39:00,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:39:00,300 INFO L87 Difference]: Start difference. First operand 144 states and 367 transitions. Second operand 4 states. [2020-10-21 22:39:00,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:00,323 INFO L93 Difference]: Finished difference Result 96 states and 192 transitions. [2020-10-21 22:39:00,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:39:00,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-21 22:39:00,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:00,325 INFO L225 Difference]: With dead ends: 96 [2020-10-21 22:39:00,325 INFO L226 Difference]: Without dead ends: 86 [2020-10-21 22:39:00,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:39:00,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-21 22:39:00,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-10-21 22:39:00,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-21 22:39:00,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 175 transitions. [2020-10-21 22:39:00,331 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 175 transitions. Word has length 15 [2020-10-21 22:39:00,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:00,331 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 175 transitions. [2020-10-21 22:39:00,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:39:00,331 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 175 transitions. [2020-10-21 22:39:00,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:39:00,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:00,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:00,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:39:00,333 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:00,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:00,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1179268395, now seen corresponding path program 1 times [2020-10-21 22:39:00,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:00,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280000860] [2020-10-21 22:39:00,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:00,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:00,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280000860] [2020-10-21 22:39:00,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:00,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:39:00,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269262788] [2020-10-21 22:39:00,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:39:00,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:00,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:39:00,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:39:00,377 INFO L87 Difference]: Start difference. First operand 86 states and 175 transitions. Second operand 4 states. [2020-10-21 22:39:00,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:00,389 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2020-10-21 22:39:00,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:39:00,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-21 22:39:00,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:00,390 INFO L225 Difference]: With dead ends: 12 [2020-10-21 22:39:00,390 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:39:00,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:39:00,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:39:00,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:39:00,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:39:00,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:39:00,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-21 22:39:00,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:00,392 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:39:00,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:39:00,392 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:39:00,392 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:39:00,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:39:00,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:39:00 BasicIcfg [2020-10-21 22:39:00,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:39:00,399 INFO L168 Benchmark]: Toolchain (without parser) took 4607.01 ms. Allocated memory was 139.5 MB in the beginning and 249.0 MB in the end (delta: 109.6 MB). Free memory was 100.7 MB in the beginning and 159.9 MB in the end (delta: -59.2 MB). Peak memory consumption was 50.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:00,400 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-21 22:39:00,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.09 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 99.9 MB in the beginning and 156.7 MB in the end (delta: -56.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:00,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.15 ms. Allocated memory is still 202.4 MB. Free memory was 156.7 MB in the beginning and 154.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:00,403 INFO L168 Benchmark]: Boogie Preprocessor took 29.84 ms. Allocated memory is still 202.4 MB. Free memory was 154.7 MB in the beginning and 152.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:00,403 INFO L168 Benchmark]: RCFGBuilder took 521.13 ms. Allocated memory is still 202.4 MB. Free memory was 152.7 MB in the beginning and 127.4 MB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:00,405 INFO L168 Benchmark]: TraceAbstraction took 3268.16 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 127.4 MB in the beginning and 159.9 MB in the end (delta: -32.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:00,409 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.09 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 99.9 MB in the beginning and 156.7 MB in the end (delta: -56.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 90.15 ms. Allocated memory is still 202.4 MB. Free memory was 156.7 MB in the beginning and 154.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.84 ms. Allocated memory is still 202.4 MB. Free memory was 154.7 MB in the beginning and 152.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 521.13 ms. Allocated memory is still 202.4 MB. Free memory was 152.7 MB in the beginning and 127.4 MB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3268.16 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 127.4 MB in the beginning and 159.9 MB in the end (delta: -32.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1218 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 282 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 90 PlacesBefore, 43 PlacesAfterwards, 100 TransitionsBefore, 47 TransitionsAfterwards, 2296 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 12 ConcurrentYvCompositions, 6 ChoiceCompositions, 77 TotalNumberOfCompositions, 8520 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: 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, 84 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 256 SDtfs, 189 SDslu, 209 SDs, 0 SdLazy, 68 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=418occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1238 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 2/2 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...